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  2. Comparison of audio coding formats - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_audio_coding...

    For example, MP3 and AAC dominate the personal audio market in terms of market share, though many other formats are comparably well suited to fill this role from a purely technical standpoint. First public release date is first of either specification publishing or source releasing, or in the case of closed-specification, closed-source codecs ...

  3. MP3 - Wikipedia

    en.wikipedia.org/wiki/MP3

    MPEG-1 frames contain the most detail in 320 kbit/s mode, the highest allowable bit rate setting, [85] with silence and simple tones still requiring 32 kbit/s. MPEG-2 frames can capture up to 12 kHz sound reproductions needed up to 160 kbit/s. MP3 files made with MPEG-2 do not have 20 kHz bandwidth because of the Nyquist–Shannon sampling ...

  4. MPEG-1 Audio Layer II - Wikipedia

    en.wikipedia.org/wiki/MPEG-1_Audio_Layer_II

    MPEG-1 Audio Layer II or MPEG-2 Audio Layer II (MP2, sometimes incorrectly called Musicam or MUSICAM) [7] is a lossy audio compression format defined by ISO/IEC 11172-3 alongside MPEG-1 Audio Layer I and MPEG-1 Audio Layer III (MP3). While MP3 is much more popular for PC and Internet applications, MP2 remains a dominant standard for audio ...

  5. Glossary of digital audio - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_digital_audio

    MP3 MPEG-1 or MPEG-2 Audio Layer III is a patented encoding format for digital audio which uses a form of lossy data compression. PCM Pulse-code modulation is a method used to digitally represent sampled analog signals. It is the standard method of storing audio in computers and various Blu-ray, DVD and Compact Disc formats.

  6. Musepack - Wikipedia

    en.wikipedia.org/wiki/Musepack

    Musepack or MPC is an open source lossy audio codec, specifically optimized for transparent compression of stereo audio at bitrates of 160–180 (manual set allows bitrates up to 320) kbit/s. It was formerly known as MPEGplus , MPEG+ or MP+ .

  7. High-Efficiency Advanced Audio Coding - Wikipedia

    en.wikipedia.org/wiki/High-Efficiency_Advanced...

    Based on the MPEG-4 Part 3 technical specification. [1] Evolution from MPEG-2 AAC-LC (Low Complexity) Profile and MPEG-4 AAC-LC Object Type to HE-AAC v2 Profile. [2] High-Efficiency Advanced Audio Coding (HE-AAC) is an audio coding format for lossy data compression of digital audio defined as an MPEG-4 Audio profile in ISO/IEC 14496–3.

  8. mp3DirectCut - Wikipedia

    en.wikipedia.org/wiki/Mp3DirectCut

    By modifying the global gain field of each frame of MPEG audio, the volume of that frame can be modified without altering the audio data itself. This allows for rapid, lossless MP3 audio editing that does not degrade the data from re-encoding. mp3DirectCut provides audio normalization and pause (silence) detection, and can split long recordings ...

  9. Variable bitrate - Wikipedia

    en.wikipedia.org/wiki/Variable_bitrate

    MP3, WMA and AAC audio files can optionally be encoded in VBR, while Opus and Vorbis are encoded in VBR by default. [ 1 ] [ 2 ] [ 3 ] Variable bit rate encoding is also commonly used on MPEG-2 video, MPEG-4 Part 2 video ( Xvid , DivX , etc.), MPEG-4 Part 10 /H.264 video, Theora , Dirac and other video compression formats.

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