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  2. Audio bit depth - Wikipedia

    en.wikipedia.org/wiki/Audio_bit_depth

    Therefore, 16-bit digital audio found on CDs has a theoretical maximum SNR of 98 dB, and professional 24-bit digital audio tops out as 146 dB. As of 2011 [update] , digital audio converter technology is limited to an SNR of about 123 dB [ 12 ] [ 13 ] [ 14 ] ( effectively 21 bits) because of real-world limitations in integrated circuit design.

  3. List of software-defined radios - Wikipedia

    en.wikipedia.org/wiki/List_of_software-defined...

    16 16 Yes Four dual channel, 16 bit, 370 MSPS ADCs; Two quad channel, 16 bit, 2500 MSPS DACs; 4/4 2x 10Gbit/s SFP+, Ethernet Yes Yes Yes Cross Country Wireless SDR receiver v. 3 [35] Pre-built 472 – 479 kHz, 7.0–7.3 MHz/10.10–10.15 MHz, and 14.00–14.35 MHz ext No External ADC required (I/Q output) 1/1 Crystal controlled two channels Yes Yes

  4. Companding - Wikipedia

    en.wikipedia.org/wiki/Companding

    For example, a linearly encoded 16-bit PCM signal can be converted to an 8-bit WAV or AU file while maintaining a decent SNR by compressing before the transition to 8-bit and expanding after conversion back to 16-bit. This is effectively a form of lossy audio data compression.

  5. List of sound chips - Wikipedia

    en.wikipedia.org/wiki/List_of_sound_chips

    16 2 Some 2000s cellphones, PDAs: 8 channels for 4 operators, an additional ADPCM channel [89] Yamaha YMU762 (a.k.a. MA-3) 2001 64 32 2 Some 2000s cellphones, PDAs: 16 channels for 4 operators, 8 additional PCM/ADPCM channels [90] Yamaha YMU765 (a.k.a. MA-5) 2003 64 32 2 Some 2000s cellphones, PDAs: 32 PCM/ADPCM channels, 16 channels for 4 ...

  6. Signal-to-noise ratio - Wikipedia

    en.wikipedia.org/wiki/Signal-to-noise_ratio

    The SNR values are given for the rectangular region on the forehead. The plots at the bottom show the signal intensity in the indicated row of the image (red: original signal, blue: with noise). Signal-to-noise ratio (SNR or S/N) is a measure used in science and engineering that compares the level of a desired signal to the level of background ...

  7. Oversampling - Wikipedia

    en.wikipedia.org/wiki/Oversampling

    As a result, the SNR increases by . For instance, to implement a 24-bit converter, it is sufficient to use a 20-bit converter that can run at 256 times the target sampling rate. Combining 256 consecutive 20-bit samples can increase the SNR by a factor of 16, effectively adding 4 bits to the resolution and producing a single sample with 24-bit ...

  8. High-resolution audio - Wikipedia

    en.wikipedia.org/wiki/High-resolution_audio

    High-resolution audio (high-definition audio or HD audio) is a term for audio files with greater than 44.1 kHz sample rate or higher than 16-bit audio bit depth. It commonly refers to 96 or 192 kHz sample rates. However, 44.1 kHz/24-bit, 48 kHz/24-bit and 88.2 kHz/24-bit recordings also exist that are labeled HD audio.

  9. Demultiplexer (media file) - Wikipedia

    en.wikipedia.org/wiki/Demultiplexer_(media_file)

    A demultiplexer for digital media files, or media demultiplexer, also called a file splitter by laymen or consumer software providers, is software that demultiplexes individual elementary streams of a media file, e.g., audio, video, or subtitles and sends them to their respective decoders for actual decoding. [1]