Volume control; Linear or logarithmic?

[Muffinman]

I've written an application that might be of use. It's a.o. designed to synchronize Linux/Alsa volume levels with that of e.g. amplifiers using different interfaces (serial/tcp/i2c) and vice versa in configurable command structures. It reads out Alsa volume levels in a linear fashion but can convert it to a log scale. If necessary different curves can easily be added. While I only added the log functionality quite recently, it does seem to work well (although I don't use the log functionality myself). This method works well for any application that can send audio and mixer data to different interfaces (e.g. MPD, Shairport, uPMPD). You're welcome to give it a try, see if it works for your purpose, give comments and/or suggestions, and report any bugs you may encounter.

https://github.com/therealmuffin/synchronator

[Orion]

Hi Muffinman,
wellcome to RuneAudio forum. Thank you for this software, I think that Syncronator is a great idea! Surely we are interested to integrate it into RuneAudio. You arrive here in perfect timing, because we are working hard to complete the refactory of our backend with a lot of interesting new features. Are you available to collaborate for a deeper integration of Syncronator with the upcoming RuneAudio new stack? PM me if you are interested.

Bye.
Simone

[jcoman]

[ACX]

[bloodnok]

I have just released a hack for this. There is an executable for the Pi model 1 with a DAC+ which you can try.

https://github.com/marcmunro/MPD

The REAME file should give you enough details to get going.

[taravasya]

I have XMOS+PCM5102, and I have same issue. All volume under 50% its just a silence )))
By the way, on Volumio everything normal with this...