Audio mixer - is it possible ?

[oscarmoutinho]

Hi,

I would like to play multiple audio files (same characteristics) simultaneously, and output to I2S.
Is it possible to connect several input streams (started manually or randomly, not synchronously) to one output stream ?
Technically, for each time slice, we need to sum same timeslice value of each stream.

• A digital audio mixer.

Thanks,
Oscar

[pschatzmann]

Yes, just read the Mixing Chapter of the Wiki...

[oscarmoutinho]

Thanks, I found it now in the wiki :)
In the example, all sounds start at the same time.
Is it possible to add sounds dynamically (in the loop) ?

[pschatzmann]

Sure, but dependent on the scenario you might need to reconfigure the mixer.
Just have a look at the class documentation for the available methods.