Fix the following issues with the capture settings:
1. Disable ALC / Auto Level Control, it tries to always get an input signal even when the user is not talking into the mic leading to it cranking up the volume till there is noise at the same level as the user talking.
2. The 'ADC PGA Gain Volume' volume control is not the main 'ADC vol' control, it is the mic amplifier control and setting it to 10 sets it to 24dB not 0dB. Adjust the comment and set it to 7 which is 16dB which gives a good microphone signal strength without introducing too much noise (with 'ADC Capture Volume' set to 0dB).
3. There actually is a main 'ADC vol' control which goes from -96 to 0dB which is simply called the 'ADC Capture Volume' and when disabling ALC it defaults to -96 dB. Add a line setting it to 0dB.
Signed-off-by: Hans de Goede hdegoede@redhat.com --- ucm2/codecs/es8316/EnableSeq.conf | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/ucm2/codecs/es8316/EnableSeq.conf b/ucm2/codecs/es8316/EnableSeq.conf index 97ccfc9..272ef1a 100644 --- a/ucm2/codecs/es8316/EnableSeq.conf +++ b/ucm2/codecs/es8316/EnableSeq.conf @@ -11,11 +11,15 @@ EnableSequence [ cset "name='Headphone Mixer Volume' 4" # Set DAC vol to 0 dB (192/192) cset "name='DAC Playback Volume' 192" - # Set ADC vold to 0 dB (10/10) - cset "name='ADC PGA Gain Volume' 10" + + # Disable Auto Level Control + cset "name='ALC Capture Switch' off" + # Set ADC vol to 0 dB (192/192) + cset "name='ADC Capture Volume' 192" + # Set Mic amplifier to +16 dB + cset "name='ADC PGA Gain Volume' 7"
# Setup muxes / switches cset "name='Left Headphone Mixer Left DAC Switch' on" cset "name='Right Headphone Mixer Right DAC Switch' on" - cset "name='ALC Capture Switch' on" ]