Arch Linux

Maeda

Member

Registered: 2015-02-17

Posts: 44

[Alsa] Volume at maximum when track with different frequency is played

Hi all,

When playing a flac audio file (16 bits 44.1KHz), say at 10% volume (alsamixer), when going to next track, if it's a flac audio file (24 bits 96KHz), volume is pushed at maximum, without changing the percentage. When increasing volume, it just go to 11% and volume is really at 11%.

Another example, same behavior, with a flac audio file 16 bits at 48KHz.

It's always when changing track with different sample frequencies.
Same when playing with mplayer or audacious.
I think it was the same with another linux distribution.
The ALSA bug tracker is out, i'd like to post a bug there but I can't.

My config :
Archlinux 64 bits
Alsa (no pulseaudio, no dmix, direct hardware access to the soundcard)
Sound card : RME Digi96/8 PAD

My simple asoundrc :

pcm.rme_stereo {
    type hw
    card PAD
}
ctl.rme_stereo {
    type hw
    card PAD
}
pcm.rme_adat {
    type hw
    card PAD
    device 1
}
ctl.rme_adat {
    type hw
    card PAD
}
pcm.!default {
    type hw
    card PAD
}

ctl.!default {
    type hw
    card PAD
}

Edit : it seems to be a kernel driver bug.
Bug opened

Last edited by Maeda (2015-10-11 10:22:03)

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