[Ardour-Users] HDSPloader and RME HDSP9652

[Tim]

Hey Paul,

thanks for the script. Does it make sense to collect such knowledge anywhere in the internet. 
Perhaps it is a good idea to have a wiki at ardour.org, where users and devs can log their knowledge.
I think it could also be a discharge to the devs in general.

Regards
Tim

On 24. Mai 2014 03:47:23 MESZ, Paul Davis <paul at linuxaudiosystems.com> wrote:
>On Fri, May 23, 2014 at 9:38 PM, Benjamin Scherrer
><benjamin at wagnerbrutal.de
>> wrote:
>
>> Hi,
>>
>> apart from the hdsploader, does anyone know why the issue "need to
>start
>> the hdspmixer once to hear something" hasn't been addressed? Safety
>> reasons sound fine, but there could be a simple "on" switch in the
>> config, couldn't there? I haven't seen (heared) this behavior with
>> another card.
>>
>
>ALSA has a rule that all devices are silenced at boot.
>
>It is up to user space to restore any existing configuration.
>
>The ALSA tools used by most distros to do this restoration don't work
>properly in the case of a matrix mixer (which the HDSP series has).
>
>So instead, the user gets to run hdspmixer. It CAN be done with ALSA
>tools,
>but not with alsactl store/restore. I have shell scripts like the one
>below
>that I sometimes use to restore particular settings, which I include
>here
>to just to show proof of concept.
>
>---------
>#!/bin/bash
>
>AMIXER="amixer -q"
>CARD="-c 1"
>
>if [ x$1 = xon ] ; then
>    gain=32768
>    verb="route"
>else
>    gain=0
>    verb="mute"
>fi
>
>shift;
>
>#input_source : 0-25  (physical channels),
>#               26-51 (software playback)
>#output_source : 0-25 (physical channels),
>#               26-27 (line out)
>
>case $1 in
>    play)
>    for chn in $(seq 26 51);do
>        $AMIXER $CARD cset numid=5 $chn,$(($chn-26)),$gain
>    done
>    ;;
>
>    thru)
>    for input in $(seq 0 25);do
>        for output in $(seq 0 25); do
>        if [ $input != $output ]; then
>            $AMIXER $CARD cset numid=5 $input,$output,$gain
>        fi
>        done
>    done
>    ;;
>
>    thru12)
>    $AMIXER $CARD cset numid=5 0,0,$gain
>    $AMIXER $CARD cset numid=5 1,1,$gain
>    ;;
>
>    mon)
>    for chn in $(seq 26 51);do
>        if [ $(($chn % 2)) -eq 0 ] ; then
>        $AMIXER $CARD cset numid=5 $chn,26,$gain
>        else
>        $AMIXER $CARD cset numid=5 $chn,27,$gain
>        fi
>    done
>    ;;
>
>    all)
>    for input in $(seq 0 51); do
>        for output in $(seq 0 27); do
>        echo -n "."
>        if [ $gain = 0 -o $input != $output ]; then
>            $AMIXER $CARD cset numid=5 $input,$output,$gain
>        fi
>        done
>        echo
>    done
>    ;;
>
>    off)
>    for input in $(seq 0 51); do
>        for output in $(seq 0 27); do
>        echo -n "."
>        if [ $gain = 0 -o $input != $output ]; then
>            $AMIXER $CARD cset numid=5 $input,$output,$gain
>        fi
>        done
>        echo
>    done
>    ;;
>esac
>------------------------
>
>
>------------------------------------------------------------------------
>
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-------
Thanks for Ardour!

Regards
Tim
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