Call recording causing audio service crashes and call interruptions

bobbed859

r134a It seems that call recording is returning to the stock OS. Hopefully, this move by Google to open up call functionality will, as much as possible, make it easier for other apps or systems like GrapheneOS to record calls.

https://blog.google/products/pixel/calling-updates-pixel-10/

n3t_admin

bobbed859 this sounds like it's coming to PixelOS; not AOSP. Doesn't really change the situation much, unless it's completely implemented in the Phone app (which I doubt at this point, since Google has been offloading functionality to different apps in recent times).

secrec

bobbed859 google's dialer already has a call recording button in it. All they're saying is that it will work in more countries. Link also says that it will tell the other party that the call is being recorded, which is pretty crappy.

r134a

Just to add to this thread, while in my initial sequence of tests the crash occured roughly between 5-6 mins, in practice they do occur at random times. Had it happen at 3 ish minutes, 9ish minutes etc.

Not sure why in my initial tests they were kinda predictable from a time perspective. Probably because they were all done in sequence shortly after eachother. In practice when calls happen at random under different circumstances, with random time between these calls, the crashes seem to happen at random aswell from a time perspective.

ThisOldGuy

r134a

Your input is amazingly detailed and thorough, thank you! I'm glad I'm not alone, I had been suspecting it was happening when there was an internet glitch triggering it, not the recording. I'll have to test if this occurs for me only when the call is being recorded, I thought it happened regardless, however I always record my longer calls. It will be a good thing to try.

I also always use speakerphone. Do you not have issues when you are using Bluetooth or handset? Hm, not sure if recording works in those situations.

For any contributors working on this, maybe not helpful:
I find after a while, after multiple crashes, the call seems to drop. If I put it on hold and flip back, the call returns and I can hear the person again.

bobbed859

ThisOldGuy
The problem occurs under the following conditions:

The call is being recorded.
The screen lock is activated.

As a temporary workaround, I’ve set the screen lock timeout to 30 minutes. This way, the audioserver crash does not occur.

There’s already an existing issue on GitHub, but it doesn’t have any developer assigned yet:

https://github.com/GrapheneOS/os-issue-tracker/issues/5145

inthewaves

I'm unable to reproduce with 2 GrapheneOS phones in a call with each other (Pixel 9 and Pixel 6a), both recording the call

I performed the same test:

Airplane mode on, Wi-Fi enabled, call over Wi-Fi
Background noise present (both phones are near audio sources of podcasts)
Speaker enabled on both

I've been able to get into recorded calls of 30+ min with the screen lock activating, and I haven't encountered any crashes. I've also tried with a mixture with airplane mode on and testing 5G calls, LTE calls (setting it to LTE in Settings > Network & internet > SIMs > the SIM > Preferred network), and VoLTE-off calls. I'm still unable to encounter a crash.

Does this still occur on the latest release, 2026011300?

r134a

inthewaves Does this still occur on the latest release, 2026011300?

As far as i'm aware, this issue seems to have stopped occuring since android 16.

bobbed859

r134a I have this problem on android 16

r134a

bobbed859 Interesting, in my case this issue didn't reoccur since android 16 update.

de0u

bobbed859 Still Pixel 8 Pro, still the same stack trace?

inthewaves

bobbed859 If you still have these issues, please try out the new call recording implementation: Dialer app > Settings > Call recording > Use call recording V2 (experimental)

inthewaves

@bobbed859 The next time this happens, can you send a full system log? You can do this by going to Settings > System > View logs, and then save the .txt file.

You can send the logs to logs@grapheneos.org with a title of "Call recording crash", or send it to my Matrix account at @inthewaves:grapheneos.org

bobbed859

inthewaves

I'm testing version 2 and it hasn't caused any issues so far

inthewaves

bobbed859 Thanks for reporting back. If you have time to check: When you disable the call recording V2 toggle, do you still run into the issues you've had previously?

bobbed859

inthewaves

I have been testing the recordings with v1 and v2, and there are no more audioserver crashes and voice cut-outs.

However, what still happens occasionally is that the Bluetooth headphones disconnect in the middle of a call, but I assume that is a different bug.

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