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

Ubuntu Foundations Team Bug Bot 1923841 at bugs.launchpad.net
Wed Apr 14 16:28:48 UTC 2021

The attachment "alsa-utils_1.2.4-1ubuntu3.debdiff" seems to be a
debdiff.  The ubuntu-sponsors team has been subscribed to the bug report
so that they can review and hopefully sponsor the debdiff.  If the
attachment isn't a patch, please remove the "patch" flag from the
attachment, remove the "patch" tag, and if you are member of the
~ubuntu-sponsors, unsubscribe the team.

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** Tags added: patch

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  [SRU] Increase recording quality

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

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

  Switch the default audio format from 8 bits to 16 bits if hardware supports it.

  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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