Dynamic DAC_ATTEN value change of audio codec

Hi all,

I want to change the value of the DAC_ATTEN from the audio codec while executing the program, how could I do it? Because I've tried to use this: output_sample(buffer[inbuf_ptr]); And I change the values of the array (buffer) by multiplying them with a number between 0 and 1. But the output audio makes a lot of noise, and I don't get what I want. Any idea?

Thanks,

Miguel.