10-18-2018, 01:27 PM
(This post was last modified: 10-18-2018, 01:29 PM by Tim Curtis.)
(10-18-2018, 08:29 AM)motkawa Wrote: Hi everyone,
I have a "simple" question. I am switching from another (PimusicBox) OS music oriented to Moode. I have some trouble to find the
best settings for my config using moode.
Hardware : raspberry pi 3 B+ with Iqaudio Pi DAC-PRO
In the Iqaudio manual, they precise that we should set Volume around 20% (alsa).
If I do that, the volume is really really low.
If I try to set 100% it's loud (maybe too much), I haven't test it extensively, but it seems that I ear a lot of distortion and I am afraid to damage the Dac-Pro.
I have the feelings that something is outdated on the Iqaudio's documentation. And I am a bit lost, I am more familiar with the direct interaction in config file in command line.
I don't know what exactly moode is doing when I change params (is it writing something somewhere in the general alsa config? etc...)
Finally, what matter is the sound quality without destroying the pi DAC-PRO nor the amplifier behind.
Could someone tell me the appropriates settings for this setup. And other specifics parameters relative to the audio parts.
Thank you.
There are either going to be 2 or 3 volume control options in MPD config. If your audio device has an on-chip volume controller then the 3rd option, "Hardware" volume option will appear. Hardware volume is ALSA volume. moOde automatically configures ALSA volume if it exists. This setting should never be manually changed.
The example below showing MPD volume control options assumes the audio device has a Hardware volume controller.
1. Disabled (0dB output)
Sets ALSA volume to 100%
MPD always outputs 100% volume.
The resulting overall volume output is thus 100% (0dB)
WARNING: your amp needs to have a physical volume control
2. Software
Sets ALSA volume to 100%
MPD volume varies logarithmically between 0 and 100%
At MPD 100% the overall volume level will be 100% (0dB)
3. Hardware
MPD varies ALSA volume logarithmically from 0-100%
At MPD 100%, ALSA will be 100% (0dB)
For the IQAudIO DAC PRO, just set MPD volume to Hardware and then APPLY.
-Tim
