What do I need to use QLab for video cues? In the world of video files, one video can contain multiple tracks, and each track can contain up to sixteen channels. This can be confusing, since the words “channel” and “track” are often used interchangeably. QLab can access all audio channels within the first audio track of your video. When you create or edit a surface, you can set its width and height to suit your exact needs. Video cues can play any compatible media file onto any surface, without the need to preemptively match resolution or frame rate. Can you play any video file in QLab?įortunately, QLab is completely agnostic when it comes to these matters. The best Windows alternative is Show Cue System. QLab is not available for Windows but there are plenty of alternatives that runs on Windows with similar functionality. Find the “Use Toggle Keys” preference and switch it to on.Open the Settings application with the keyboard shortcut Windows-I.Play a sound when you activate special keys How can I play sound from my computer keyboard? When an Audio cue is triggered, the target file is played. So, Audio and Video cues have targets, which are media files. How does QLab work?Ī key concept in QLab is that some types of cues have a target which is the recipient of the action of that cue. We run our sound cues from a laptop (PC). A single QLab workspace can control audio, video, MIDI, OSC, and more. QLab allows you to design and operate amazing multimedia performances from your Mac OS X computer. How many audio tracks does a QLab have?.By default, a cue is triggered by clicking a large GO button on the screen, or by pressing the space bar. After doing so, an untrained user can run the software in a playback situation. The designer of a cue sheet can save their show file, and lock it, preventing any changes to the cues. Live playback Ī key software feature with QLab is its ease of use in live playback situations. MIDI signals can be sent to QLab from other computers running QLab software, or any other MIDI capable device, using a MIDI Interface. The software also accepts MIDI signals as triggers for its own cues. QLab allows MIDI signals to be sent as a cue to trigger other devices, such as digital audio consoles. It is useful to note that the speed of the computer processor and video card can affect the quality of video playback. The designer can also select on which video card or cards the video will play. Video files can be altered in real time in QLab, by integrating a Quartz Composer file. The video capability of the software in its most recent version allows a designer to add video files to their cue lists, allowing them to be time aligned with other cues, including audio files. Audio cues can also be placed into groups, so that multiple files can be triggered at one moment. Once the audio files are inserted into the cue list, the end-user can then manipulate it by looping it, changing the amplitude or volume, and adding fades in or out. QLab allows an end-user or designer to align audio files in a sequential order. The list of available cues in v4 is as follows: When triggered, a cue executes an operation. In QLab, a cue is a marker for an action to take place in the program. As of February, 2023, the most recent version of QLab is 5.1. As with Version 3, a new edition of the QLab book was released called QLab 4: Projects in Video, Audio, and Lighting Control, by Jeromy Hopgood. This new function allowed QLab to function as a lighting console. As with previous versions, this one added many new user functions, including the addition of lighting cues. In 2016, Figure 53 released the newest major version of QLab, version 4.0. 2013 also saw the publication of the first book dedicated to the use of the software, QLab 3 Show Control: Projects for Live Performances & Installations, by Jeromy Hopgood (not affiliated with Figure 53, LLC). 2013 marked the release of QLab Version 3.0, with a wide range of new features, particularly in the realm of audio and video effects, Syphon video, the addition of microphone cues, and integration of OSC capabilities. In January 2009, Version 2.0 was released with a complete visual makeover of the interface and new control features. QLab 1.3.10 was the first version of the software and was released on May 25, 2007.
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