[Bug 1923841] Re: [SRU] Increase recording quality

[Ubuntu Foundations Team Bug Bot]

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** Tags added: patch

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Title:
  [SRU] Increase recording quality

Status in HWE Next:
  New
Status in alsa-utils package in Ubuntu:
  New

Bug description:
  [Impact]
  Audio gets recorded by "arecord" has really bad sound quality when the volume is low.

  [Fix]
  https://github.com/alsa-project/alsa-utils/pull/69
  Switch the default audio format from 8 bits to 16 bits if hardware supports it.

  [Test]
  1. Plug a microphone.
  2. Run `arecord | aplay` and say something to the microphone.
  3. Only noise can be heard.

  With the fix applied, the recording is clear.

  [Where problems could occur]
  If there's any hardware falsely advertised to support 16 bits, this change will break them.
  However, this is effectively using `arecord -f cd` or `arecord -f cdr`, so that's not likely.

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