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MP3 MIXER implementation

Posted: Sun Jul 10, 2022 8:47 pm
by Nikson_
Hello, Gents!

There are any ways to play several mp3 files at the same time? My project required mp3 mixer implementation.

How it sould be:

==========first_mp3 file=============================================
.......====second_mp3 file===..........................................................
...................=====third_mp3_file============.................................

<-------------------------------------time representation------------------------------->
legend:
= means Playing in the Loop
. means not Playing

mp3 files will be stored on the external SDcard
Will be used external DAC module with I2S interface

I saw downmix feature, but it's seems that it can handle only 2 pipelines (i.e. sound files)

Please give me some idea how I can do it.

BR

Re: MP3 MIXER implementation

Posted: Wed Jul 13, 2022 12:58 pm
by tempo.tian
You can look this example firstly, I think it is what you needed.
https://github.com/espressif/esp-adf/tr ... udio_forge

Re: MP3 MIXER implementation

Posted: Sat Aug 13, 2022 7:12 pm
by Nikson_
Thank you!