Hardware mixer volume control with SMSL Sanskrit 6th

Help and Support Help
1

Hi,

I’m using Volumio on a RPi with an external SMSL Sanskrit 6th USB DAC, based on a Wolfson WM8740 (at least this is what I found searching on internet).
When using hardware mixer, volume control is not working.
I neither can control volume from alsamixer :

However, there are other DAC models using the same chip listed as having a working hardware mixer on the USB DAC compatibility list… Is there something I can do to get it working with mine?

Thanks!

2

Hi the hardware Volume is not dependent on the DAC chip itself, but from the USB receiver (and its software).
So unfortunately there is no way (apart from a firmware update of your DAC) you can enable it.

3

Oh, OK! :frowning:

4

Hi
Can you explain or point out how the HV is done ? Is it in the usb signal, is it done by a chip, as the usb is before the dac chip i assume the volume control is done before the dac ? so how ?