What does audio bit rate mean?

The audio bit rate refers to the bit rate; the bit rate in audio refers to the amount of binary data per unit time after converting the analog sound signal into a digital sound signal. It is an indirect indicator of audio quality. The amount of binary data per unit time, the greater the bit rate, the better the sound quality.

The operating environment of this tutorial: Windows 10 system, DELL G3 computer.

What does the audio code rate mean?

The code rate refers to the bit rate: the bit rate in sound refers to the binary data per unit time after converting the analog sound signal into a digital sound signal. Quantity is an indicator that indirectly measures audio quality.

The amount of binary data per unit time, the higher the bit rate, the better the sound quality (under the same encoding format, different formats cannot be compared). As a reference indicator of digital music compression efficiency, the bit rate represents the speed of the number of bits transmitted per unit time (1 second) bps (bit per second, bits/second). Usually kbps (colloquially speaking, 1000 bits per second) is used as the unit.

Extended information:

Audio quality at different bit rates:

• 32 kbps —MW(AM) quality

• 96 kbps —FM quality

• 128 - 160 kbps – pretty good Quality, sometimes noticeable difference

• 192 kbps — Excellent quality, sometimes noticeable difference

• 224 - 320 kbps — High quality

• 800 bps – Minimum bit rate required for distinguishable speech (requires dedicated FS-1015 speech codec)

• 8 kbps – Telephone quality (Using Speech Encoding)

• 8-500 kbps -- Lossy audio mode used in Ogg Vorbis and MPEG1 Player1/2/3

• 500 kbps–1.4 Mbps —44.1KHz lossless audio, decoder is FLAC Audio, WavPack or Monkey's Audio

• 1411.2 - 2822.4 Kbps —Pulse Code Modulation (PCM) sound format CD disc Digital audio

• ##5644.8 kbps - Direct Stream Digital format used by SACD

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