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  2. Audio bit depth - Wikipedia

    en.wikipedia.org/wiki/Audio_bit_depth

    The number of possible values that an integer bit depth can represent can be calculated by using 2 n, where n is the bit depth. [1] Thus, a 16-bit system has a resolution of 65,536 (2 16) possible values. Integer PCM audio data is typically stored as signed numbers in two's complement format. [2]

  3. High-resolution audio - Wikipedia

    en.wikipedia.org/wiki/High-resolution_audio

    These formats offer additional benefits such as multi-channel surround sound. Following a format war, none of these achieved widespread adoption. [7] Following the rise in online music retailing at the start of the 21st century, high-resolution audio downloads were introduced by HDtracks starting in 2008. [7] [8]

  4. Surround sound - Wikipedia

    en.wikipedia.org/wiki/Surround_sound

    16.2 channel surround sound. Surround sound is a technique for enriching the fidelity and depth of sound reproduction by using multiple audio channels from speakers that surround the listener (surround channels). Its first application was in movie theaters.

  5. Comparison of analog and digital recording - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_analog_and...

    The level of the noise depends on the number of the bits in the channel." [9]: 6 The range of possible values that can be represented numerically by a sample is determined by the number of binary digits used. This is called the resolution, and is usually referred to as the bit depth in the context of PCM audio.

  6. DVD-Audio - Wikipedia

    en.wikipedia.org/wiki/DVD-Audio

    Different bit depth/sampling rate/channel combinations can be used on a single disc. For instance, a DVD-Audio disc may contain a 96 kHz/24-bit 5.1-channel audio track as well as a 192 kHz/24-bit stereo audio track. Also, the channels of a track can be split into two groups stored at different resolutions.

  7. Opus (audio format) - Wikipedia

    en.wikipedia.org/wiki/Opus_(audio_format)

    Possible bitrate and latency combinations compared with other audio formats. Opus supports constant and variable bitrate encoding from 6 kbit/s to 510 kbit/s (or up to 256 kbit/s per channel for multi-channel tracks), frame sizes from 2.5 ms to 60 ms, and five sampling rates from 8 kHz (with 4 kHz bandwidth) to 48 kHz (with 20 kHz bandwidth, the human hearing range).

  8. Compact Disc Digital Audio - Wikipedia

    en.wikipedia.org/wiki/Compact_Disc_Digital_Audio

    Four-channel, or quadraphonic, supported was originally intended to be included in CD-DA. [85] The Red Book specification briefly mentioned a four-channel mode in its June 1980, [86] September 1983, [87] and November 1991 [88] editions. On the first page, it lays out the "Main parameters" of the CD system, including: "Number of channels: 2 and ...

  9. Apple Lossless Audio Codec - Wikipedia

    en.wikipedia.org/wiki/Apple_Lossless_Audio_Codec

    ALAC supports up to 8 channels of audio at 16, 20, 24 and 32 bit depth with a maximum sample rate of 384 kHz. ALAC data is frequently stored within an MP4 container with the filename extension.m4a. This extension is also used by Apple for lossy AAC audio data in an MP4 container (same container, different audio encoding).