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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/Service/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.
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 …
5.3.8 Algorithms for Audio Companding and …
http://digitalsoundandmusic.com/5-3-8-algorithms-for-audio-companding-and-compression/
The main idea is as follows: Consider the audio signal in the time domain. Come up with a function that reasonably predicts what an audio sample is likely to be based on the values of previous... Using that formula on n successive samples, calculate what n+1 “should” be. This value is called the ...
What is "Companding"? - inSync
https://www.sweetwater.com/insync/companding/
A type of noise reduction used in audio equipment, a compander circuit is a combination of a COMPressor and an exPANDer. The signal is compressed before recording it to tape (which maximizes the signal to noise ratio), then expanded as the tape is played back.
Companding Techniques for High Dynamic Range Audio …
https://www.rle.mit.edu/isg/documents/ma_meng_thesis.pdf
Companding compresses the input signal and expands the output signal according to the input power strength such that additional noise from the system is suppressed while the signal content is maintained. As the compres- sion level is varied according to the input signal strength, transients occur at the output of the system.
What is companding ??? | RadioReference.com Forums
https://forums.radioreference.com/threads/what-is-companding.194887/
An easy to understand explanation of "companding" on an analog radio system. The radio will compress all low level audio, identifying low level as noise, and only transmit the higher level audio, identifying high level as your voice. The receiving radio does the same thing.
What is Companding? - Definition from Techopedia
https://www.techopedia.com/definition/24121/companding
For digital audio signals, companding is used in pulse code modulation (PCM). The process involves decreasing the number of bits used to record the strongest (loudest) signals. In the digital file format, companding improves the signal-to-noise ratio at reduced bit rates.
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