[linux-audio-dev] 30db loudness difference at these cases

Andrew Gaydenko a at gaydenko.com
Mon Jun 6 05:53:10 EDT 2005

Hi, All!

I'm rather frustrated with my situation, so I'm not sure which
mailing list is the most appropriate for my question.

I have Terratec Aureon 7.1 Space card which is used with ICE1724 alsa
driver (1.0.8, 1.0.9a). An appropriate .asoundrc fragment is shown below.
All works fine except for at some cases a sound level is about 30db lower
rather at another cases. Of course, alsamixer settings are the same.

--- "Normal" cases are: ---

1. Playing back with aqualung this way:

aqualung -o alsa -d default

2. Using any JACK-enabled app (ReZound, aqualung)

--- "-30db" cases are: ---

1. aplay -d default <file>

2. xine engine with any frontend (amaroK, Kaffeine)

Will anybody be so kind to suggest steps to find this difference


////////////////// .asoundrc fragment ////////////////////////////
pcm.!default {
        type plug
        slave {
                pcm "2x4"
                format S32_LE

pcm.2x4 {
    type route
    slave.pcm surround71
    slave.channels 8
    ttable.0.0 0.05
    ttable.1.1 0.05
    ttable.0.2 1
    ttable.1.3 1
    ttable.0.4 1
    ttable.1.5 1
    ttable.0.6 1
    ttable.1.7 1

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