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Horrible audio quality in all camera apps #11

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7ERr0r opened this issue Aug 23, 2022 · 0 comments
Open

Horrible audio quality in all camera apps #11

7ERr0r opened this issue Aug 23, 2022 · 0 comments

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@7ERr0r
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7ERr0r commented Aug 23, 2022

Hi. There is no way to record with decent audio quality.
All camera apps i've tested have this problem:

  • Default Fairphone camera [1]
  • GCam [1]
  • OpenCamera [2]
  • Quick Video Recorder [2]

[1] Unusable audio. No way to change it
[2] Audio source can be RAW (without denosing), but still codec is 96 kb/s

ffmpeg gives the same AAC 96 kb/s for every video from all the camera apps.

ffmpeg -i VID_20220823_000000.mp4

Stream #0:1[0x2](eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 96 kb/s

Problem is with media_profiles.xml probably like:
https://forum.xda-developers.com/t/how-to-edit-etc-media_profiles-xml-on-android-10-with-magisk.4149989/

Here:
https://github.com/WeAreFairphone/android_device_fairphone_FP4/blob/b3a85dc2d8f781ec168a0ace941bb36c90029267/media/media_profiles.xml

Also, i've found that:

  • MediaRecorder.AudioSource.CAMCORDER is the worst
  • MediaRecorder.AudioSource.UNPROCESSED raw, is a little better

https://developer.android.com/reference/android/media/MediaRecorder.AudioSource#CAMCORDER
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