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Avid Technology, previously known as Digidesign, is responsible for developing and releasing Pro Tools, a digital audio workstation (DAW) that is compatible with both Microsoft Windows and macOS. Sound for picture (sound design, audio post-production and mixing), music creation and production, and more broadly, sound recording, editing, and mastering are all operations that make use of this software.

Both as a solo piece of software and in combination with a variety of external analog-to-digital converters and PCIe cards equipped with on-board digital signal processors, Pro Tools is able to function (DSP). The Digital Signal Processor (DSP) is used to provide the host computer with extra processing capacity in order to achieve reduced latency audio performance and to handle real-time effects such as reverb, equalization, and compression. Pro Tools, like all digital audio workstation software, is capable of performing the functions of a multitrack tape recorder and a mixing console. In addition, it is capable of performing additional functions that can only be performed in the digital domain, such as non-linear and non-destructive editing (the majority of audio handling is done without overwriting the source files), track compositing with multiple playlists, time compression and expansion, pitch shifting, and faster-than-real-time mixdown.

A timeline is used to visually depict the audio, MIDI, and video components of a project. In a virtual mixer, audio effects, virtual instruments, and hardware emulators (such microphone preamps or guitar amplifiers, for example) may be added, altered, and processed in real time. Supported are sample rates of up to 192 kHz, as well as bit depths of 16 bits, 24 bits, and 32 bits for float audio. Pro Tools allows you to mix several bit depths and audio formats inside the same session. These formats include BWF/WAV (including WAVE Extensible), RF64, and BW64, as well as AIFF. It is capable of importing and exporting MOV video files as well as ADM BWF files, which are audio files that include Dolby Atmos information. Additionally, it is capable of importing MXF, ACID, and REX files, as well as the lossy codecs MP3, AAC, and M4A, and audio from video files (MOV, MP4, M4V). Pro Tools 10 got rid with the archaic SDII format, although macOS users may still convert SDII files to other formats.

As a result of the incorporation of video editing features, users of Pro Tools are now able to import and alter high-definition video file types like XDCAM, MJPG-A, PhotoJPG, DV25, and QuickTime, amongst others. It allows mixing in surround sound, Dolby Atmos, and VR sound using Ambisonics, and it comes equipped with capabilities such as time coding, tempo mapping, elastic audio, and automation.

The Pro Tools TDM mix engine, which was supported until 2011 with version 10, used 24-bit fixed-point arithmetic for plug-in processing but 48-bit for mixing. The 32-bit floating-point resolution used for plug-ins on current HDX hardware systems, as well as HD Native and native systems, employ 64-bit floating-point summation. Beginning with version 11, both the program and the audio engine were rewritten to run on a 64-bit architecture.

Avid moved away from the perpetual licensing model for Pro Tools and instead adopted the subscription-based approach in 2022. Pro Tools Artist costs $9.99 per month or $99 per year, while Pro Tools Studio costs $39.99 per month or $299 per year, and Pro Tools Flex costs $99.99 per month or $999 per year. New users are need to choose one of these three new plans in order to begin using Pro Tools.  Learn more here.

Portions of this article were derived from Wikipedia content using the Creative Commons License CC-BY SA 3.0 which can be found here.

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