Failed to record call

[vunghi021198]

I've been having this issue on 1.60 only. Same setup as shown in screenshot till 1.59, same ROM, no issue recording. Hope you can look into this. Thank you.

[chenxiaolong]

If you change the sample rate to 48000 Hz, does it still fail?

EDIT: If you wouldn't mind, could you please install https://play.google.com/store/apps/details?id=com.parseus.codecinfo, find the opus.encoder entry, and post a screenshot of it?

[vunghi021198]

If you change the sample rate to 48000 Hz, does it still fail?

Oh my god how silly of me, I dont know since when did it change to 16000, used to be 48000 since 1.40, somehow updating from 1.59 to 1.60 changed the sample rate to 16000. Everything works normally now on 48000. Thank you and sorry for wasting some of your time.

[chenxiaolong]

It's not a waste of my time at all :)

1.60 changed the default from 48000 Hz to 16000 Hz. During the update, if you never changed the sample rate in the past, then BCR would use the new default value. It seems that your device doesn't support 16000 Hz for some reason. (If you wouldn't mind posting some additional details, it might help with understanding why--please see my previous edited comment.)

Since 16000 Hz is clearly problematic, I will revert the change and set the default back to 48000 Hz in version 1.62.

[vunghi021198]

It's not a waste of my time at all :)

1.60 changed the default from 48000 Hz to 16000 Hz. During the update, if you never changed the sample rate in the past, then BCR would use the new default value. It seems that your device doesn't support 16000 Hz for some reason. (If you wouldn't mind posting some additional details, it might help with understanding why--please see my previous edited comment.)

Since 16000 Hz is clearly problematic, I will revert the change and set the default back to 48000 Hz in version 1.62.

I'm not sure what kind of additional details I can give, if you mean my device, it's Redmi K20 Pro (raphael)
Let me grab that codec thing also

[chenxiaolong]

Thanks! Sorry, by "additional details", I only meant the codec info

[vunghi021198]

Thanks! Sorry, by "additional details", I only meant the codec info

Here are the two I can find

[chenxiaolong]

Thanks! That confirms it then. The device only supports 48000 Hz.

That's incredibly weird though. c2.android.opus.encoder is the default Opus encoder shipped in Android. The encoder has supported multiple sample rates in every version of Android since 2018. I guess Redmi must have disabled the other sample rates for some reason.

[vunghi021198]

Thanks! That confirms it then. The device only supports 48000 Hz.

That's incredibly weird though. c2.android.opus.encoder is the default Opus encoder shipped in Android. The encoder has supported multiple sample rates in every version of Android since 2018. I guess Redmi must have disabled the other sample rates for some reason.

This is a Redmi series, more like a flagship killer tier so mostly some of the higher end features will be cutoff to reduce the cost and the selling price.

[chenxiaolong]

This will be fixed by #508, which changes BCR's behavior so that only the sample rates supported by the device are listed. This will be included in the next version of BCR (version 1.62).