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

Sebastien Bacher 1923841 at bugs.launchpad.net
Thu Apr 15 08:24:11 UTC 2021


Thanks, I've uploaded to focal and hirsute. Do you care about 20.10 at
this point? It feels like we could probably skip this one to spare some
verification work since it's about to be replaced by a new stable and
isn't a LTS

** Changed in: alsa-utils (Ubuntu)
   Importance: Undecided => Low

** Changed in: alsa-utils (Ubuntu)
       Status: New => Fix Committed

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Title:
  [SRU] Increase recording quality

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

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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