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Updated Microphone Transceiver (markdown)

Brumi-2021 2022-10-17 23:59:39 +02:00
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Microphone-Transceiver.md

@ -16,7 +16,7 @@ But thanks to many great contributors , currently we are supporting multi voice
**Automatic mic Level Control "ALC" (AK4951 sound codec IC) or "Boost" pre-amplifier mic control adjustment (WM8731 audio codec IC) :** (*1) **Automatic mic Level Control "ALC" (AK4951 sound codec IC) or "Boost" pre-amplifier mic control adjustment (WM8731 audio codec IC) :** (*1)
To avoid mic ADC saturation (and consequently spectrum harmonics radiation), and adapt better to your needs , depending on the mic type sensitivity , and the distance mic-mouth from the speaker , and the user voice loudness ... we should set up the best ALC or Boost option (checking that he mic sound Vumeter < 80 - 90% ) To avoid mic ADC saturation (and consequently spectrum harmonics radiation), and adapt better to your needs , depending on the mic type sensitivity , and the distance mic-mouth from the speaker , and the user voice loudness ... we should set up the best ALC or Boost option (checking that the mic voice sound Vumeter is below 80-90% )
1. * **ALC Automatic mic volume Level Control** (available in Portapack boards that uses AK4951 audio codec platform) : 1. * **ALC Automatic mic volume Level Control** (available in Portapack boards that uses AK4951 audio codec platform) :
With those "ALC" GUI options, user can adjust from +12 dB's to -12 dB's mic gain. With those "ALC" GUI options, user can adjust from +12 dB's to -12 dB's mic gain.