[misterhouse-users] Extending Festival engine support to multiple sound cards

[Robert R. <ro...@fr...>]

Hi,

I'm trying to incorporate support for multiple sound cards also under Linux
and Festival (I use aplay with -D specification to play wav file to diferent
device). I think that it is best, to mimic win32 support for multiple sound
cards, but with some differences:
- user could somehow specify sound cards that he has (1,2,3)
- there are now 2 possibilities to do that with Festival:
    1. to add pre,post_speak hook let Festival prepare wav file and play it
properly, but:
            - what parms do I get to those hooks (does $parms{card} and wav
file name gets to code hook ?)

    2. To have multiple festival_init_cmds in mh.ini and at the end specify
different play command to go to different sound card.
    I did in Voice_text.pm:
                    if ($parms{card} == 1) {
                     print "Data sent to festival:
$main::config_parms{festival_init_cmds}\n";
                     set $VTxt_festival
qq[$main::config_parms{festival_init_cmds}];
                    } elsif ($parms{card} == 2) {
                     print "Data sent to festival:
$main::config_parms{festival_init_cmds_kids}\n";
                     set $VTxt_festival
qq[$main::config_parms{festival_init_cmds_kids}];
      }

  But it seems like card=2 parameter doesn't get through. If I do:

$test_speak13 = new Voice_Cmd 'Test speech output to card [1,2,all]';
if ($state = state_now $test_speak13 ) {
     if ($state == 1) {
       speak card => $state, text => "Testing speech to soundcard $state";
            } elsif ($state == 2) {
       speak card => $state, text => "Testing speech to soundcard $state";
            } else {
      speak card => 1, text => "Testing speech to soundcard main";
      speak card => 2, text => "Testing speech to soundcard kids";
            }

}
---------------------------
It produces all speech on main sound card - so parameter card=2 doesn't get
through.

Any help, opinion, how to do this properly and in proper Misterhouse manner.

Regards,

Robert.