03-16-2021, 07:10 PM
Hardware mixer is not an overlay param but rather part of the set of ALSA controls exposed by the driver. Below showing two hardware mixers "Master" for PCM and "Digital" for DoP. The other controls are chip options.
Specs
http://moodeaudio.org/forum/showthread.php?tid=3094
FFT plots
https://www.allo.com/sparky/boss2-player.html
I think Allo sent a sample to Amir at AudioScienceReview so expect a more in depth set of plots and data when that review is published.
Code:
pi@rp2:~ $ amixer scontrols
Simple mixer control 'Master',0
Simple mixer control 'PCM De-emphasis Filter',0
Simple mixer control 'PCM Filter Speed',0
Simple mixer control 'PCM High-pass Filter',0
Simple mixer control 'PCM Nonoversample Emulate',0
Simple mixer control 'PCM Phase Compensation',0
Simple mixer control 'Digital',0
Simple mixer control 'HV_Enable',0
pi@rp2:~ $
Specs
http://moodeaudio.org/forum/showthread.php?tid=3094
FFT plots
https://www.allo.com/sparky/boss2-player.html
I think Allo sent a sample to Amir at AudioScienceReview so expect a more in depth set of plots and data when that review is published.