Re: [Qemu-devel] [PATCH] hda-codec: use smaller dynamic range for input amplifier

2015-04-22 Thread Wilck, Martin
> > > The "right" solution for this problem would be to implement > > > proper dB scaling in QEMU and the audio backends (such as spice). > > Can we try this please? I would like to, but it's a rather big project and beyond my current QEMU progamming skills. Support seems to be lacking in the gen

[Qemu-devel] [RFC/PATCH] Bad volume scaling with Win7 guest, spice audio, and Qemu Intel HDA codec

2015-04-20 Thread Wilck, Martin
Hello, I see a problem with input volume control on a Windows7 guest using the qemu Intel HDA codec. In short, moving the volume slider for the input volume from 0% to 1% under Windows results in the "gain" values in the emulated HW to jump from 0 to 40 (out of 74) (looking at "st->gain_[left|rig