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Created April 12, 2021 22:39
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Fix microphone on Lenovo IdeaPad 320 on Ubuntu 18.04
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fix_mic_lenovo320.md

In /usr/share/pulseaudio/alsa-mixer/paths/analog-input-internal-mic.conf and /usr/share/pulseaudio/alsa-mixer/paths/analog-input-mic.conf:

  • Under [Element Internal Mic Boost] set volume to zero.
  • Under [Element Int Mic Boost] set volume to zero.
  • Under [Element Mic Boost] set volume to zero

Find your source name from the following command; mine is alsa_input.pci-0000_00_1f.3.analog-stereo

  $ pacmd list-sources | grep 'name:.*input'

Edit /etc/pulse/default.pa and add the following lines, where INPUT_NAME is name of the input source from above step:

`load-module module-remap-source source_name=record_mono master=INPUT_NAME master_channel_map=front-left channel_map=mono`
`set-default-source record_mono`

Then restart PulseAudio:

  $ pulseaudio -k
  $ pulseaudio --start
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