presentation mode beamer

How do you put Beamer in presentation mode?

For public presentations, popular slide presentation programs offer a presenter mode , that shows on one screen the current, next, and previous slides, the time elapsed on this slide and the total time elapsed, and also any notes attached to the slides. This is all shown while on the other screen it just shows the presentation contents.

This can also be achieved in beamer, with a third-party program Pympress . Pympress is a free PDF presentation tool designed for dual-screen setups such as presentations and public talks. It comes with very useful features, such as:

• Two-screen display: you can see on your laptop or tablet display the current slide, the next slide, the talk time and the wall-clock time, and annotations.
• Media support: supports playing video, audio, and GIF files embedded in (or linked from) the PDF file.
• Highlight mode: allows one to draw freehand on the slide currently on screen.
• Go to slide: You can jump to a selected slide without having to go through the whole presentation.
• Software pointer: you can emulate a laser pointer with your mouse.
• Talk time breakdown: the Timing Breakdown menu item displays a breakdown of how much time was spent on each slide, with a hierarchical breakdown per chapters, sections, …if available in the PDF.
• Estimated talk time: The Time Estimation box lets you set a planned talk duration. The color will allow you to see at a glance how much time you have left.

And many more that you can find in their documentation .

because LaTeX matters

Beamer: an introduction to latex presentations.

Beamer is a LaTeX document class that provides extensive functionality to create presentations. Here, I will only show the basics and after reading this guide you will be able to create a simple presentation in LaTeX. I am aware there are a lot of tutorials available out there and this is not different from any other tutorial. I hope however, I can encourage some of you who have hesitated so far, for whatever reason, to create your next presentation with LaTeX. And I’m sure it will be a lot of fun, with similar effort. I should add that the output will obviously be a PDF file (with all its advantages!). Luckily, PDF-viewers (including Adobe Acrobat) provide a fullscreen-mode for presentation purposes.

So lets get started!

Now that line is straight forward, not much to say about it. Once that’s done, we have to choose a theme. This website gives a visual overview of the most common themes. I like Singapore:

Next, still in the preamble, we prepare the title page, using a similar set of commands as for other document-classes:

A frame may have one or several slides. Since PDFs are static, dynamic “effects” such as adding more content to a frame are achieved by two consecutive slides in the output file.

We use the previously defined title page to create our first (single-slided) frame:

  Similar to articles, sections, subsections, etc. are available and can be used to define an outline, printed with \tableofcontents . For many themes, the outline will be displayed in the header/footer and provides direct access to a certain section of the presentation. Frame-titles are created using \frametitle{Title} .

Most of the time, a frame will show a list of items created through the well known itemize-environment:

  Now what if you don’t want to show all the items at once, but one after another. The \pause -command will take care of it. Just add it anywhere you want to “pause” and will produce 3 slides. In presentation mode, the next bit of information is only shown after you press a key (usually space or arrow keys). So the above code example now looks as follows:

Figures are used similarly as within other document-classes:

Finally, I will show you something a little more advanced. Two columns, with items on the left and figures on the right side. The idea is to show an item along with an image. We want one item after the other to appear, while the image replaces the previous. Let me give you the code first and then explain some of the details:

What’s new here is called overlay specification within an environment (itemize) and lets you display different text/content on different slides or a range of slides.

<1-> indicates that this item will be displayed from slide 1 onwards in this frame. We could also have used <1-3> . Whereas the actual figures will only be displayed on their specific slide, e.g. <1> .

If there is no environment, the set of things to display has to be enclosed by the overprint-environment:   \begin{overprint}...\end{overprint}.

Another thing is the “overlay specification” for commands, e.g. to change the text-color for slides 2 and 3:

\color<2-3>[rgb]{1,0,0} This text is red on slides 2 and 3, otherwise black.

Here, the overlay specification always has to follow the command before any additional arguments. I have to admit, slightly useless, but at least it illustrates the result nicely ( example was taken from the user guide page 81 ).

The following a complete code sample with a few frames containing the various examples described above:

The packages hyperref, xcolor, color are automatically loaded when using the beamer class.

A comprehensive user guide can be downloaded from CTAN .

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26. October 2011 at 16:29

In latex this is shown as error.explain.please send reply to my email id.please.

26. October 2011 at 16:41

Use math mode for everything and it works perfectly:

Cheers, Tom.

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• How to make a presentation with Latex - Introduction to Beamer
• exampleblock
• compilation
• beamergotobutton
• presentation

We shall see in this article how to make a presentation with LaTeX, using the powerful class Beamer. If you want to make an outstanding “stressfree” presentation and bring your ideas or your work under a whole new light, let’s get started!!!

Installing the Beamer class

You will first need to install the package Beamer . Under Debian or Ubuntu, you can type the following command:

Once the latex-class Beamer is installed, you are definitely ready to stat your first presentation!!!

Basic presentation with Beamer

A few explanations:

means that our document is a Beamer presentation

this package enables us to use special letters (with accents, cedillas, etc). You can discard this command when the presentation is in English.

This is our outer theme (color and background). As you can imagine, there are tons of themes. You can refer to Beamer documentation for more details.

this defines the title of the presentation. As you can see, there are two titles:

• the first one, between brackets. [Making a LaTeX presentation with Beamer] is a substitute title which appears at the bottom of the page. This is useful especially if the original title is long. Since this is anoption only, if it is not mentioned, then the original title is the one shown in the bottom of the page.
• the second one, between braces, is the principal title of the presentation. The command

defines Nadir Soualem and Astozzia (us!) as the authors of the presentation.

defines where the presentation was held. Finally, we use

as the date.

To define the document, we use the markers

To define a slide of the presentation, we use the markers

To define a page title (frame), we mention it as follows

Introduction will be the title of the page. To define the first page, which contains details such as the title, the author, the date, etc - we use a frame in which we include the \titlepage command

To define a frame containing the layout of the presentation, we proceed as follows:

The layout is therefore mentioned at every section and subsection. You should insert \section and \subsection throughout the presentation and out of the frames:

Animations – Overlays

A good presentation is one that is dynamic and attracts the audience’s interest. Generally, we resort to a dynamic type of presentations. Alternatively stated, when we speak, we simultaneously show significant points of the talk, or hide others, or keep just the important ones. We shall see in this section how animations function in Beamer.

Item-by-item list view: the \pause command

In order to view several items of a list on the same slide, we type the following commands inside a frame:

We will thus see the items of our list, one by one.

Item-by-item list view: the \item<n-> command

An alternative way to visualize the elements of a list item by item is to use the \item<n-> command, where n is a natural number referring to the slide, beginning from which the item appears.

List item interval and isolated items: the \item<n-> and \item<p> commands

An example is worth a long speech:

\item<n-> means that the list item will appear on slides numbered n to m, whereas \item<p> means that the item will appear on slide p.

Item-by-item long list view: the [<+->] command

Sometimes the lists you want to display are long and it is not practical to use the \item<n-> command. An alternative solution is the use of the [<+->] command

Up to now, we have dealt with lists. We shall now see how to use text and slides.

Displaying and hiding text in slides: the \uncover<n->, \uncover<n-> and \uncover<p> commands

\uncover<n-> will display the text from slide n on; \uncover<n-> means the text element will appear from slide n to m. Finally, \uncover<p> means that the text will appear on slide p. Here is a case in point of a frame containing the \uncover command.

Be careful not to forget the braces after the \uncover command. The syntax is as follows:

Displaying and hiding text in slides: the \only<n->, \only<n-> and \only<p> commands

\only works like \uncover with the exception that the \only command is not as “cumbersome” on slides. Here is an example:

Here is an other example to better grasp the difference between \only and \uncover

Hide text in slides: the \invisible<n> commands

\invisible<n> makes text invisible on slide n

Another alternative: the \alt<n>{…}{…} commands

As an alternative, one can use the \alt<n>{…}{…} command on a slide. The first argument is the value on slide n. The second is for values other than n. Here is an example:

Highlighting text in red: the \alert<n>{…} command

To highlight text in red on slide n, we use the \alert<n>{…} command.

Successively highlighting list items in red: the <+-| alert@+> command

Using colors in a text on a slide: the \color<n->{…}{…}, \color<n->{…}{…} and\color<p>{…}{…} commands.

The first argument is the red, green, yellow, blue, etc … The second is the text to be colored

Creating links: the \hyperlink{…}{\beamergotobutton{…}} commands

To define internal links, we should add the following package in the preamble

Then, we should define a label pointing on the frame:

you define MY_LABEL as you please ! Finally, on the frame where the link is to be created, we proceed as follows:

There we are! We can see a button Refer to this page pointing to the frame labeled MY_LABEL .

Thus, the first argument of \hyperlink{…}{\beamergotobutton{…}} is the name of the label to be pointed at and \beamergotobutton{…} has the name of the button as an argument.

Defining blocks inside frames

For important stuff, we define blocks as follows:

As clear as onion soup !!!

Dynamic display of tables: the \pause and \onslide<n-> commands

First off, we should add the package colortbl to the preamble

To display rows dynamically, we shall use the \pause command as follows:

To display columns dynamically, we shall use the \onslide<n-> command as follows:

Writing on several columns: the \begin{columns}...\end{columns} commands

For two columns, we proceed as follows:

l,r,c refers to the position: left, right, center. The syntax is as follows:

Inserting a figure in a Beamer presentation

To insert an image or a figure, we proceed as in LaTeX by using the \includegraphics command. Here is an example:

In Beamer, we should distinguish between two types of figures:

• PS type: .eps, .ps and pspicture type (LaTeX)
• General type: .pdf, .png, .jpg, .jpeg You will need to compile a Beamer-class file.

Compiling a Beamer presentation

I assume that the your file is called file.tex. . There are ways to compile, depending on the type of figure you inserted. For PS-type figures, we shall use the following commands

We shall obtain the file file.pdf.

For general-type figures, we shall use the command

We shall also obtain the file file.pdf.

It goes without saying that explaining all the possibilities that Beamer offers is way too long. Have look to the official documentation, which is more exhaustive.

Have fun !!!

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How to create presentations with Beamer

Vector Open Stock. CC BY-SA 3.0.

Beamer is a LaTeX package for generating presentation slide decks. One of its nicest features is that it can take advantage of LaTeX's powerful typesetting system and all the other packages in its ecosystem. For example, I often use LaTeX's listings package in Beamer presentations that include code.

Starting a presentation

To begin a Beamer document, enter:

As you would with any other LaTeX document, add any packages you want to use. For example, to use the listings package, enter:

Place all content inside the document environment:

Beamer documents are usually a sequence of frame environments. Frames that contain code should be marked fragile :

Begin your frames with a title:

Testing your code before you present it

One of the worst feelings in the world is giving a talk and realizing, as you walk through the code, that there is a glaring bug in it—maybe a misspelled keyword or an unclosed brace.

The solution is to test code that is presented. In most presentation environments, this means creating a separate file, writing tests, then copying and pasting.

However, with Beamer, there is a better way. Imagine you have a file named do_stuff.py that contains code. You can write tests for the do_stuff.py code in a second file, which you call test_do_stuff.py , and can exercise it with, say, pytest . However, most of the lines in do_stuff.py lack pedagogic value, like defining helper functions.

To simplify things for your audience, you can import just the lines you want to talk about into the frame in your presentation :

Since you will be talking through those lines (from 8 to 15), you don't need any other content on the slide. Close the frame:

On the next slide, you want to show a usage example for the do_stuff() function you just presented:

You use the same file, but this time you show the lines that call the function. Finally, close the document:

Assuming you have an appropriate Python file in do_stuff.py , this will produce a short two-slide presentation.

Beamer also supports necessary features such as progressive revelation, showing only one bullet at a time to prevent the audience from being distracted by reading ahead.": \pause inside a list will divide bullets into pages:

Creating handouts

My favorite feature in Beamer is that you can set it to ignore everything outside a frame with \documentclass[ignorenonframetext]{beamer} . When I prepare a presentation, I leave off the top (where the document class is declared) and auto-generate two versions of it: one with Beamer that ignores all text outside any frame, which I use for my presentation, and one with a header like:

which generates a handout—a PDF that has all the frames and all the text between them.

When a conference organizer asks me to publish my slides, I include the original slide deck as a reference, but the main thing I like people to have is the handout, which has all the explanatory text that I don't want to include on the slide deck itself.

When creating presentation slides, people often wonder whether it's better to optimize their materials for the presentation or for people who want to read them afterward. Fortunately, Beamer provides the best of both worlds.

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Writing Beamer presentations in org-mode

1. introduction.

Beamer is a LaTeX package for writing presentations. This documents presents a simple introduction to preparing beamer presentations using org-mode in Emacs.

This documents assumes that the reader is already acquainted with org-mode itself and with exporting org-mode documents to LaTeX. There are tutorials and references available for both org-mode itself, for LaTeX exporting , and for Beamer exporting . The document also assumes that the reader understands the notation for Emacs keybindings .

2. First steps

2.1. the export template.

Starting with an empty file called presentation.org 1 , say, the first step is to insert the default org export template ( C-c C-e # with the default keybindings). This will generate something that looks like this (some specific entries will vary):

In this default template, you will want to modify, at the very least, the title, as I have done, as this will be used as the title of your presentation. It will often be useful to modify some of the LaTeX export options, most commonly the toc option for generating a table of contents. For this document, and the associated sample presentation , I have left all options as they are by default according to the template.

2.2. Beamer specific settings

As well as the general options provided by the template, there are Beamer specific options. The following options are what I use:

The first line enables the Beamer specific commands for org-mode (more on this below); the next two tell the LaTeX exporter to use the Beamer class and to use the larger font settings 2 .

2.3. Outline levels for frames (slides)

The following line specifies how org headlines translate to the Beamer document structure.

A Beamer presentation consists of a series of slides, called frames in Beamer. If the option shown above has a value of 1, each top level headline will be translated into a frame. Beamer, however, also makes use of LaTeX sectioning to group frames. If this appeals, setting the option to a value of 2 tells org to export second level headlines as frames with top level headlines translating to sections.

2.4. Column view for slide and block customisation

The final line that is useful to specify to set up the presentation is

The purposes of this line is to specify the format for the special interface that org-mode provides to control the layout of individual slides. More on this below.

Once all of the above has been set up, you are ready to write your presentation.

3. The slides

Each slide, or frame in Beamer terminology, consists of a title and the content. The title will be derived from the outline headline text and the content will simply be the content that follows that headline. A few example slides are presented below. These will only cover the basic needs; for more complex examples and possible customisations, I refer you to the detailed manual .

3.1. A simple slide

The simplest slide will consist of a title and some text. For instance,

defines a new section, Introduction , which has a slide with title A simple slide and a three item list. The result of this with the settings defined above, mostly default settings, will generate a slide that looks like this:

3.2. A more complex slide using blocks

Beamer has the concept of block, a set of text that is logically together but apart from the rest of the text that may be in a slide. How blocks are presented will depend on the Beamer theme used ( customisation in general and choosing the theme specifically are described below).

There are many types of blocks. The following

creates a slide that has a title (the headline text), a couple of sentences in paragraph format and then a theorem block (in which I prove that org increases productivity). The theorem proof is a list of points followed a bit of LaTeX code at the end to draw a fancy end of proof symbol right adjusted.

You will see that there is an org properties drawer that tells org that the text under this headline is a block and it also specifies the type of block. You do not have to enter this text directly yourself; org-mode has a special beamer sub-mode which provides an easy to use method for specifying block types (and columns as well, as we shall see in the next section ).

To specify the type of block, you can type C-c C-b 3 . This brings up a keyboard driven menu in which you type a single letter to select the option you wish to apply to this headline. For the above example, I typed C-c C-b t . The options selected in this manner are also shown as tags on the headline. However, note that the tag is for display only and has no direct effect on the presentation. You cannot change the behaviour by changing the tag; it is the property that controls the behaviour.

3.3. Slides with columns

The previous section introduced the special access keys ( C-c C-b ) for defining blocks. This same interface allows you to define columns. A headline, as the text that follows it, can be in a block, in a column, or both simutaneously. The | option will define a column. The following

defines a two column slide. As the text in the slide says, the left column is a list and the right one is an image. The left column's headline text is ignored. The column on the right however is placed with an example block (whose appearance will depend on the Beamer theme).

The columns also have widths. By default, these widths are the proportion of the page width to use so I have specified 40% for the left column and 60% for the right one.

The image in the right column is inserted simply by specifying a link to the image file with no descriptive text. I have added an attribute to the image (see the #+ATTR_LATEX line above) to tell LaTeX to scale the image to the full width of the column ( \textwidth ).

3.4. Using Babel

One of my main uses for Beamer is the preparation of slides for teaching. I happen to teach Octave to engineering students. Org provides the Babel framework for embedding code within org files. For teaching, this is an excellent tool for presenting codes and the results of evaluating those codes.

For instance, the following code:

will generate a slide with two blocks and a pause between the display of each of the two blocks:

4. Customisation

Org has a very large number of customisable aspects. Although daunting at first, most options have defaults that are suitable for most people using org initially. The same applies to the Beamer export support. However, there are some options which many will soon wish to change.

4.1. Beamer theme

Beamer has a large number of themes and I simply refer the reader to the manual or the Web to find what themes are available and what they look like. When you have chosen a theme, you can tell org to use it by inserting some direct LaTeX code into the preamble of the document, the material that comes before the first headline. For instance, adding this line

to the preamble after the beamer font size option described above will produce a presentation that looks very different from the default (with no other changes required!):

4.2. Table of contents

The default toc:t option generated by the export template command ( C-c C-e # ) indicates that a table of contents will be generated. This will create a slide immediately after the title slide which will have the list of sections in the beamer document. Please note that if you want this type of functionality, you will have to specify the BEAMER-FRAME-LEVEL to be 2 instead of 1 as indicated above .

Furthermore, if you have decided to use sections, it is possible to have Beamer automatically place a table of contents slide before the start of each section with the new section highlighted. This is achieved by inserting the following LaTeX code, again in the preamble:

4.3. Column view for slide and block customisation

In an early section of this document , I described a magical incantation! This incantation defines the format for viewing org property information in column mode. This mode allows you to easily adjust the values of the properties for any headline in your document. This image shows the type of information you can see at a glance in this mode:

We can see the various blocks that have been defined as well as any columns (implicit by the presence of a column width). By moving to any of these column entries displayed, values can be added, deleted or changed easily. Please read the full org Beamer manual for details.

A previously created example presentation is available.

I am a firm believer in using the largest font possible to encourage less text on slides. This is obviously a personal view.

org-beamer-mode must be turned on for this keybinding to be available.

Documentation from the orgmode.org/worg/ website (either in its HTML format or in its Org format) is licensed under the GNU Free Documentation License version 1.3 or later. The code examples and css stylesheets are licensed under the GNU General Public License v3 or later.

Samsung The Premiere 9 ultra short throw projector review: bright, beautiful images and big sound

A triple-laser threat.

TechRadar Verdict

The Samsung The Premiere 9 is an ultra short throw 4K DLP projector that employs a triple-laser light source to deliver cinematic big-screen images that are bright and vibrant. The picture accuracy is impressive, the Dolby Atmos sound is immersive, and the smart platform is comprehensive. All of which makes this capable beamer a convenient and affordable alternative to king-sized TVs.

Triple-laser for big, bright pictures

Vibrant and saturated colours

Excellent sound quality

No in-built tuners

No Dolby Vision support

Not ideal for serious gamers

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• One-minute review
• Price and release date
• Picture and sound quality
• Should I buy it?

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• How I tested

SAMSUNG THE PREMIERE 9: two-minute review

The Samsung Premiere 9 is a highly capable example of the best ultra short throw projectors and builds on the brand’s earlier successes in this growing market segment. The key to this popularity is the triple-laser light source that uses red, green and blue lasers to generate cinematic images that are bigger than the largest TV screens. But these pictures aren’t just big, they’re bright enough to handle white walls and ambient light, while creating a huge gamut for more vibrant colours.

Samsung’s The Premiere 9 uses single-chip DLP display technology, which results in sharply defined images due to there being no alignment issues, and while not strictly native 4K the level of detail on show is often impressive. The Premiere 9 delivers superb motion handling regardless of the content – a recognised strength of DLP –  but also suffers from poor black levels, which is weakness of the technology. On the plus side, a triple-laser should help reduce incidences of rainbow artifacts that can accompany DLP tech.

The Premiere 9 delivers accurate pictures thanks to the inclusion of Filmmaker Mode, while highly effective HDR tone mapping also ensures shadows are detailed and highlights free of clipping. The colour gamut covers the entire HDR standard, and beyond, so, as a result, the performance with high dynamic range is exceptional. Whether it's HDR10, HLG or HDR10+ (but not Dolby Vision, an HDR format not supported by Samsung TVs and projectors) the pictures burst off the big screen with dazzling highlights and vibrant color primaries that are a treat for the eyes.

This beamer sports an attractive lifestyle-friendly design and is easy to install and set up, while the Dolby Atmos audio system is genuinely immersive – acting more like a built-in soundbar thanks to its 2.2.2-channel speaker layout. There’s also Samsung’s AI-enhanced Object Tracking Sound processing for non-Atmos audio. There are extensive gaming features, a full smart platform with a comprehensive choice of streamers, good connectivity, and a myriad of control options.

In fact, the only real complaint is the lack of any built-in tuners, but otherwise, this capable beamer artfully blurs the line between projector and supersized TV. It does an excellent job of producing big and bright images that rival the largest examples of the best TVs, and as a result, it provides a viable, more affordable, and definitely more practical alternative, and comes highly recommended.

SAMSUNG THE PREMIERE 9 review: price and release date

• First available: September 2024
• The Premiere 9 (LPU9D): $5,000 / £5,999

Samsung’s The Premiere 9 (LPU9D) is the new range-topper in the brand’s line-up of laser-powered ultra short throw (UST) 4K HDR projectors and is available now for $5,999 / £5,999. It replaces the older The Premiere LSP9T , although this is also still available for the same price of $5,999 / £5,999. In addition, Samsung will release the mid-tier Premiere 7 in October, although pricing has yet to be announced. The Premiere 9 is not currently available in Australia.

SAMSUNG THE PREMIERE 9 review: Specs

SAMSUNG THE PREMIERE 9 review: design

• Stylish and discreet design
• Excellent connectivity
• SolarCell remote control

The Premiere 9 is surprisingly stylish for a UST projector, with a curved chassis that’s well-built and finished in a neutral white. The front is covered in grey fabric, with the speakers behind, and there are air vents on either side for cooling. Despite being relatively large, this projector’s lifestyle-friendly design allows you to place it discreetly up against the wall.

Better connectivity is offered on The Premiere 9 than most other UST projectors, with three HDMI 2.0 inputs, one of which supports eARC. There’s also a USB port for multimedia playback and powering dongle-style streaming devices, an optical digital output, and an Ethernet port. The wireless connectivity includes built-in Wi-Fi 5, Bluetooth 5.2, and support for Apple AirPlay.

Samsung provides a variation of the SolarCell remote included with its current range of TVs, although the controller is styled in white to match the projector. The zapper is well-designed, intuitive to use, and comfortable to hold. There’s also a far-field microphone for the built-in voice assistants, although those wishing privacy can switch this off at the back of the projector.

• Design score: 4.5/5

SAMSUNG THE PREMIERE 9 review: features

• Triple-laser light source
• HDR10, HLG and HDR10+ support
• 2.2.2-channel Dolby Atmos audio system

Samsung’s The Premiere 9’s headline feature is its triple-laser light source that uses red, green and blue lasers for 3,450 lumens brightness plus a wide colour gamut and 20,000-hour lifespan. This gives it an advantage over most other UST projectors and delivers sufficient luminance to handle rooms with white walls, large windows or ambient light.

As a UST beamer it’s able to project 100 inches from only 11cm (around 4 inches) , and can fill a 130-inch screen at just 24cm (9.5 inches), so even those with limited space can enjoy big screen fun. You change the image size by physically moving the projector towards or away from the wall, centre it by moving to the left or right, and level it using the adjustable feet. There are also manual controls for focusing the image.

The Premiere 9 is a single-chip DLP projector with a claimed resolution of 4K – although this is achieved by shifting pixels. It also supports most high dynamic range formats with HDR10, HLG (hybrid log-gamma), and HDR10+. Samsung doesn’t support for Dolby Vision on any of its current displays, but the RGB laser light source ensures HDR is punchy with bright and vibrant colours.

This projector sports a built-in sound system with a 2.2.2-channel speaker layout and 40W of amplification. There’s support for Samsung Object Tracking Sound (OTS) AI-enhanced audio processing, along with Dolby Atmos decoding. As a result, there’s an immersive soundstage, with clear dialogue, width at the front, some bass presence, and effectively rendered overhead sound.

There’s also support for music casting, as well as various proprietary audio features such as AI-powered Adaptive Sound Pro enhancements, Adaptive Voice Amplifier Pro for making dialogue clearer, and Q Symphony for synching the Premiere 9 with a compatible Samsung soundbar. The latter would definitely provide benefits for those who enjoy seriously deep bass with their movies.

Once installed the setup is exactly the same as a Samsung TV, with the SmartThings app taking you through the entire process. Just follow the instructions, and within minutes you’ll have the Wi-Fi connected and all the streaming apps installed. There’s even a Vision Boost feature that uses a built-in light sensor to adjust the image brightness based on levels of ambient light in the room.

The Premiere 9 runs the full Tizen-powered smart TV system found in Samsung’s TVs, and crucially has sufficient processing power to ensure the platform is responsive. There’s smart assistance in the form of built-in Bixby and Amazon Alexa, along with a comprehensive choice of video streaming services. Where available these all offer 4K, HDR, HDR10+ and Dolby Atmos.

For gaming, there’s support for ALLM (auto low latency mode), although when in the game mode the input lag is still 53ms, which is too high for competitive gamers. In addition, the HDMI 2.0 inputs cap the frame rate at 4K/60Hz and there’s no VRR. However, the motion handling is excellent, resulting in smooth gameplay that also benefits from the immersive big-screen images.

There’s a host of other features including Samsung’s Game Hub for gaming without a console, plus a Game Bar that curates all the main settings and technical data in one place and provides access to gaming-related settings for a more personalised gaming experience. Finally, the AI Auto Game Mode allows the projector to automatically optimise settings for specific gaming genres.

This is a well-specified projector and about the only TV features missing are built-in terrestrial and satellite tuners. This is fairly common on UST projectors, probably because it makes them easier to manufacture and market globally. While you can use the TV catch-up apps instead for most shows, if you really want to watch live linear broadcasts you’ll need a set-top box of some kind.

SAMSUNG THE PREMIERE 9 review: picture and sound quality

• Sharp and detailed 4K images
• Bright and punchy HDR
• Extremely wide colour gamut 

The Samsung Premiere 9 immediately impresses with its bright and punchy big screen pictures. There’s no doubt the triple-laser adds value, not just in terms of lumens but also with its wider colour gamut. The projected image is sharply defined thanks to the use of single-chip DLP, while focus and uniformity across the screen are also good, resulting in a clean and even presentation.

The out-of-the-box picture accuracy is excellent, with the white point close to the industry standard of D65, an even greyscale, and colours hitting close to their saturation targets for BT.709, but this can be improved through calibration. I was able to get a near reference-level accuracy through adjustment, and when you factor in the cost of a Premiere 9 the additional expense of a calibration is worth considering.

This accuracy also extends to HDR, with the Premiere 9 covering 100% of DCI-P3, and 92% of the even wider BT.2020 colur gamut. The previous generation of Samsung’s UST had trouble reigning in this massive native colour gamut, resulting in noticeable errors, so I was pleased to discover the accuracy of the Premiere 9 has definitely been improved with better tracking of saturation targets.

The blacks look more of a dark grey, which is fairly standard for a DLP projector, and while the claimed native contrast ratio is 1,500:1, I actually measured it at 1,700:1. The dynamic contrast ratio is a claimed 2,000,000:1, but this is basically achieved by turning the laser off on a black screen, so it doesn’t really reflect real-world content. There’s also a Real Depth Contrast Enhancer feature to help with contrast.

The Premiere 9 certainly has sufficient lumens to light up a 130-inch screen, even in the dimmer Filmmaker Mode, which doesn’t hit the brightness peaks of the Dynamic mode. It also means the HDR has plenty of punch and although the black levels might not be great, the tone mapping is very effective, sticking close to the PQ curve and thus avoiding unwanted crush or clipping.

The imaging is based around the Quantum Processor 4K picture engine, applying AI upscaling to lower-resolution content to take full advantage of the available pixels. The result is a finely detailed image, regardless of the original resolution, and the processing is also able to clean up the image, reducing noise or compression artefacts to deliver expertly rendered big-screen pictures. 

As you’d expect from a DLP beamer, motion handling is superb, with the lightning-fast response times of the technology delivering smooth movement. Samsung includes its Motion Xcelerator technology, along with a Film mode to ensure that film-based content looks natural but is also free of judder, while fast-paced sports can enjoy smoother motion without introducing artefacts.

In standard HDR10, the brightly lit snowy landscapes of The Revenant look absolutely stunning. The same is true when watching Dune Part 2 with its desert vistas, and in both cases, these native 4K films reveal exceptional levels of detail in the sharply rendered images. Inside Out is a movie that fully utilises the wider gamut, and its deeply saturated colours really pop off the screen viewed on The Premiere 9.

Alita: Battle Angel includes HDR10+ and the Premiere 9 correctly detected the signal, applying the dynamic metadata to the tone mapping. The resulting images are well-defined, with colours that are rendered with skill, highlights that are bright, and impressive levels of detail in the shadows. There’s a lot of motion in this film as well, which was handled without judder or other artefacts.

Picture quality aside, the Premiere 9 is quiet in operation, with the noise level going from 30dB next to the chassis, down to 26dB at the main seating position. There is also an eye protection feature designed to automatically reduce the light intensity if something blocks the beam. It’s an important safety feature for anyone with small children or pets, preventing any vision damage.

• Picture quality score: 4.5/5

SAMSUNG THE PREMIERE 9 review: value

• More expensive than much of the competition
• Cheaper and more convenient compared to a supersized TV

The Samsung Premiere 9 may seem expensive at $5,999 / £5,999, and it’s certainly not cheap compared to other ultra short throw projectors, but most of them don’t use a triple-laser with all the benefits that provides. The Premiere 9 also offers great value compared to jumbo-sized TVs, with the Samsung considerably more affordable than screens with panel sizes over 100 inches. It’s also a lot easier to install – just try getting a TV with a 110-inch screen into your living room.

If you’re looking for alternatives you could consider the Epson LS800 , which doesn’t support HDR10+ or Dolby Vision but is even brighter at 4,000 lumens. There’s also the Hisense PX2-Pro , which only delivers 2,400 lumens but offers support for HDR10+ and Dolby Vision. However, neither has a sound system as good as the Premiere 9 nor do they offer as many gaming features or as comprehensive a smart platform.

• Value score: 3.5/5

Should I buy the SAMSUNG THE PREMIERE 9?

Buy it if...

You want big and bright images regardless of the room: The triple-laser light source uses individual red, green and blue lasers to deliver images that are not only cinematic but are also bright enough to handle rooms with white walls and ambient light.

You want a vibrant and punchy HDR delivery: The triple-laser doesn’t only produce big and bright pictures, but also an incredibly wide gamut that results in HDR with vibrant colours, detailed shadows, and specular highlights that pop.

You want immersive audio to match the big picture: The inclusion of a 2.2.2-channel sound system combined with Object Tracking Sound (OTS) and Dolby Vision means immersive spatial audio with sufficient scale to match the big screen images.

Don’t buy it if… 

You want to veg out watching linear TV broadcasts: Since there are no built-in terrestrial or satellite tuners you’ll have to use the catch-up services to watch TV. While fine for most programming, watching linear broadcasts will require a set-top box.

You want support for Dolby Vision HDR: Unlike some UST projectors, the Premiere 9 doesn’t support Dolby Vision, although this is a result of Samsung’s corporate philosophy rather than any limitations in the Premiere 9’s capabilities.

You want a display for competitive gaming: The Premiere 9 only has HDMI 2.0 inputs, so is limited to 4K/60Hz and unable to support higher frame rates or VRR. Its input lag is also 53ms, so it isn’t an ideal projector for serious gamers.

Hisense PX2-Pro The Hisense PX2-Pro has around the same brightness as the BenQ but costs at least $500 less. It's not as great an option for gaming, but it does come with the Google TV smart interface for streaming and voice control. Read our full  Hisense PX2-Pro review

Epson LS800 The Epson LS800 uses a 3LCD laser light source to beam a stunningly bright 4,000 lumens image. This makes it a great option for daytime sports viewing and it also has good built-in sound. 

Read our full  Epson LS800 review

Hisense L9G If you know you’re planning to get a dedicated ALR screen, the Hisense L9G, which comes with one, may make more sense. It’s less bright at 3,000 lumens, its color is also excellent, and it supports Dolby Vision. Also, its 40W sound system is a beast in its own right. 

Read our full  Hisense L9G review .

How I tested the SAMSUNG THE PREMIERE 9

• Reviewed in a dedicated home cinema
• Measurements taken using Calman calibration software
• Evaluated using SDR and HDR content

As with all my TV and projector reviews I use a combination of subjective viewing and objective measurements against the industry standards. For projectors, I also do all my testing in a dedicated home cinema with a completely blacked-out environment and high-quality screen. In the case of the Premiere 9, I also tested it in my lounge in order to simulate the kind of conditions for which it was primarily designed.

The subjective testing is based around watching a variety of familiar scenes, primarily sourced from 4K and 1080p Blu-rays, plus the Spears & Munsil UHD Benchmark 4K disc. These scenes have been specifically chosen to evaluate a display’s black levels, contrast performance, colour accuracy, upscaling, image processing, motion handling, and HDR tone mapping.

For the objective testing, I measured the Premiere 9’s brightness, greyscale and colour gamut in SDR, before doing the same in HDR. I also evaluated the accuracy of the HDR tone mapping, along with the colour gamut coverage for DCI-P3 and BT.2020. To do this I used a pattern generator and colour meter combined with Portrait Displays’ Calman calibration software.

I measured the Premiere 9’s input lag in milliseconds using a Leo Bodnar tester with the low latency mode switch on.

First reviewed: September, 2024

• Read TechRadar's review guarantee

Stephen is a freelance reviewer with over ten years experience writing for all the major tech publications. As a lifelong film fan he’s embraced the evolution of home entertainment over the decades, and as a professional audio and video calibrator he’s able to keep abreast of the latest developments and innovations. When not reviewing the latest products, Stephen can be found obsessing over how to cram a bigger screen and more speakers into his own home cinema. 

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Beamer: set mode mid-presentation

In Beamer, is it possible to switch between handout mode and presentation mode in the middle of a presentation?

The reason I want to do this is that I am working through a slide deck in multiple lectures. I want to omit the pauses for slides from previous lectures to support quickly navigating to them for reference (handout mode), while for the current lecture I would like to include the pauses for presentation purposes (presentation mode).

Here's a minimal example:

After compiling, I would like to have four slides. One slide showing the entire Frame 1, and three slides showing the three stages of Frame 2.

• 1 Welcome to TeX.sx! –  Mensch Commented Jan 14, 2013 at 3:51

beamer holds the selected mode in the macro \beamer@currentmode so what you need to do is change that mid-way through your document.

Of course, there may be things "under the bonnet" which depend on the mode during initialisation so it might be that you want to start in beamer mode, switch to handout (or maybe trans ) at the start of the slides, then back to beamer for the slides for the current lecture.

• Thank you! I assumed there was a macro that stored this setting, but I couldn't find it in the documentation or with a google search. As you recommended, I begin in beamer mode, switch to handout mode at the beginning, then switch back to beamer mode midway through the presentation. It seems to work perfectly. –  walkie Commented Jan 14, 2013 at 19:49
• 1 @walkie I did a grep through the code and couldn't find such a macro. I guess it's one of those "here be dragons" in that things could go wrong if you weren't careful. –  Andrew Stacey Commented Jan 14, 2013 at 20:19
• 1 Just a note: setting the macro apparently does only work after \begin{document} (please don't ask why I need to change it within the header but after the document class :) –  stefanct Commented Nov 10, 2015 at 21:05
• 1 Doesn't seem to work the second time, only the first... –  Metomorphose Commented Jan 17, 2023 at 17:12

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Beamer Presentation

If you're looking to get started with a LaTeX presentation, this template is for you!

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