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Companding
https://dspguide.com/ch22/5.htm#:~:text=Companding%20is%20a%20common%20technique%20for%20reducing%20the,sound%20that%20can%20be%20detected%20%280%20dB%20SPL%29.
What is Audio Reference Companding? - Shure
https://service.shure.com/s/article/what-is-audio-reference-companding?language=en_US
When companding is applied to low signal levels, the noise floor of the radio signal becomes dynamic and audible. Most wireless users will recognize these low-level artifacts as “breathing” or “pumping.” The “breathing” sound results from the suddenly increased level of the noise floor and tends to be masked at higher signal levels.
5.3.8 Algorithms for Audio Companding and …
http://digitalsoundandmusic.com/5-3-8-algorithms-for-audio-companding-and-compression/
5.3.8 Algorithms for Audio Companding and Compression 5.3.8.1 Mu-law Encoding Mu-law encoding (also denoted μ-law) is a nonlinear companding method used in telecommunications. Companding is a method of compressing a digital signal by reducing the bit depth before it is transmitted and then expanding it when it is received.
Companding
https://dspguide.com/ch22/5.htm
Companding is a common technique for reducing the data rate of audio signals by making the quantization levels unequal. As previously mentioned, the loudest sound that can be tolerated (120 dB SPL) is about one-million times the amplitude of the weakest sound that can be …
Analogue v Digital – Companding - Sound Devices
https://www.sounddevices.com/analogue-v-digital-companding/
A compander first compresses audio at the transmitter by a fixed compression ratio before RF modulation. At the receiver the signal is then expanded by the same ratio after demodulation. Companders help overcome the noise limits …
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