How to know MP3 native sampling rate

[hash6iron]

Hi @pschatzmann,

Is possible to know the native sampling rate of a MP3 file? How to?
Thanks in advance.

[pschatzmann]

After you started the playback just check the sample_rate provided by audioInfo() or you could use the HeaderParserMP3

[hash6iron]

I understand that I have to check sample_rate from AudioPlayer -> AudioInfo()?

[pschatzmann]

The information is propagated along the whole chain: just read the documentation!

[hash6iron]

Ok, I Understand. I'm doing something wrong because a 48KHz mp3 is playing accelerated but player.audioInfo().sample_rate return me 44100.

[pschatzmann]

Just set the log level to Info and check what's happening...
The link to the documentation should give you the information to resolve the issue...

[hash6iron]

Hi again @pschatzmann.

I continue having problems with sampling rate propagation. I'm using player, metadatafilter, Helix MP3 decoder, Eq filter and AudioBoardStream as audio out driver. All is defaullt configured.

The pipeline I think is, source -> decoder -> metadatafilter -> (equalizer) kitStream, then I not need to force notifycation. Then, where would be the problem?

Thanks

[hash6iron]

I just solve. Yeah!!! I have to use addNotifyAudioChange in the decoder