Galaxy S9: AAC codec stopped working after Android 10 update

Mobile
1

Hi!

After the last update I have faced the following issue: my old AAC alarm ringtone stopped working. It cannot be played by any player, so the issue is system-wide.

MediaInfo util displays the following information about the file

Format : ADTS
Format/Info : Audio Data Transport Stream
File size : 22.5 KiB
Overall bit rate mode : Variable

Audio
Format : AAC LC SBR PS
Format/Info : Advanced Audio Codec Low Complexity with Spectral Band Replication and Parametric Stereo
Commercial name : HE-AACv2
Format version : Version 2
Format settings : Implicit
Codec ID : 2
Bit rate mode : Variable
Channel(s) : 2 channels
Channel layout : C
Sampling rate : 44.1 kHz
Frame rate : 21.533 FPS (2048 SPF)
Compression mode : Lossy
Stream size : 20.4 KiB (91%)

I tried another file and it played successfully. MediaInfo output for it:

Format : ADTS
Format/Info : Audio Data Transport Stream
File size : 236 KiB
Overall bit rate mode : Variable

Audio
Format : AAC LC
Format/Info : Advanced Audio Codec Low Complexity
Format version : Version 4
Codec ID : 2
Bit rate mode : Variable
Channel(s) : 2 channels
Channel layout : L R
Sampling rate : 44.1 kHz
Frame rate : 43.066 FPS (1024 SPF)
Compression mode : Lossy
Stream size : 236 KiB (100%)

So the codec that is not working now is called “AAC LC SBR PS”. The file has been played successflly until the last software update.

My current SW info

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image1030×1041 41.2 KB

Can the codec be considered as legacy and its support deprecated?

2

I think you should encode and decode again to create a new aac file. Or you can use new audio converter software like Ringtone123. I think this problem will be fixed in the next security patch.