Input levels normalized?

Hi, wanted to know if the sound inputs in the audio callback function are normalized to -1 to +1 or 0 to 1. If not, what are the maximum values expected?

Thank you.

Input values are -1.0 to +1.0, and outputs beyond that range will clip.
But that’s not normalization.

Thanks. By normalized I meant these are not real voltage values.
+/-1 represent the full scale of the ADC/DAC and are translated to real +/-1V?

-1.0 to +1.0 are the numbers you’ll see in the callback for input and output. The actual voltages are different.