ChrisMmm wrote: 
> Thanks, that brought up the volume to my reference CD player level. But
> how do you make it stick? Each time I re-boot it goes back to -20db
> which seems to be the default level. Both the Wandboard and Raspberry Pi
> are doing the same now so I am confused as to why the RPi was -0db (or
> so I thought) when I listened to the TE7022 USB DAC first time.
> 
> Also this lower, -20db, setting does not happen on my PCM2707 DAC - it
> seems totally unaffected by the alsamixer level. Any reason why that is
> the case?
> 
> Sorry with all the questions, I am learning here and also somewhat
> confused!

Alsamixer isn't actually a mixer in the traditional sense, it doesn't
actually change the bits going to the DAC. It sends control codes to the
DAC to tell it to change the volume. That is only going to work if the
DAC has an internal volume control of some sort, the 2707 does not have
a volume control so you can change the volume all you want in alsamixer
and nothing  is going  to happen. 

John S.


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