[PLUG] Tuning audio system

[Rich Shepard]

On Mon, 29 Jun 2020, Mike C. wrote:

> Just so you know exactly what you're working with, first get a list of all
> microphone devices.

> # arecord -l

Mike,

Right now only the Audio-Technica is connected; the webcam and headset
aren't:

$ arecord -l
**** List of CAPTURE Hardware Devices ****
card 1: Generic [HD-Audio Generic], device 0: ALC1220 Analog [ALC1220 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
card 1: Generic [HD-Audio Generic], device 2: ALC1220 Alt Analog [ALC1220 Alt Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
card 2: AT2005USB [AT2005USB], device 0: USB Audio [USB Audio]
   Subdevices: 1/1
   Subdevice #0: subdevice #0

> This page might help with amixer - https://alsa.opensrc.org/Record_from_mic

Here,
$ amixer
Simple mixer control 'Master',0
   Capabilities: pvolume pswitch pswitch-joined
   Playback channels: Front Left - Front Right
   Limits: Playback 0 - 65536
   Mono:
   Front Left: Playback 55704 [85%] [on]
   Front Right: Playback 55704 [85%] [on]
Simple mixer control 'Capture',0
   Capabilities: cvolume cswitch cswitch-joined
   Capture channels: Front Left - Front Right
   Limits: Capture 0 - 65536
   Front Left: Capture 99957 [153%] [on]
   Front Right: Capture 99957 [153%] [on]

The 'Capture' section's last two lines show that pavucontrol has set the mic
volume to 153% and that produces speaker volume that's too low.

Thanks,

Rich