Bug#474312: linux-source-2.6.24: emux midi synthesizer doesn't honor SOFT_PEDAL-release event
Package: linux-source-2.6.24
Version: 2.6.24-5
Severity: normal
Tags: patch
When the hardware wavetable synthesizer of an Creative SB Audigy or SB
Live! card (with emu10k chip) receives the MIDI SOFT_PEADAL-press event
(?? 67 127) the appropriate voice is attenuted. Unfortunately when the
pedal is released (event ?? 67 0) the voice does not get it's original
volume again.
The attached patch fixes this problem by analysing the value (0 or 127)
of the midi control event and resetting the effect register in case of a
release event. I'm not 100% sure if the code to reset the register is
correct but at least it works.
--- linux-source-2.6.24.orig/sound/synth/emux/emux_synth.c 2008-04-03 22:23:00.000000000 +0200
+++ linux-source-2.6.24/sound/synth/emux/emux_synth.c 2008-04-03 22:28:12.000000000 +0200
@@ -341,8 +341,13 @@
case MIDI_CTL_SOFT_PEDAL:
#ifdef SNDRV_EMUX_USE_RAW_EFFECT
/* FIXME: this is an emulation */
+ if( chan->control[type] ) {
snd_emux_send_effect(port, chan, EMUX_FX_CUTOFF, -160,
EMUX_FX_FLAG_ADD);
+ } else {
+ snd_emux_send_effect(port, chan, EMUX_FX_CUTOFF, 0,
+ EMUX_FX_FLAG_OFF);
+ }
#endif
break;
-- System Information:
Debian Release: lenny/sid
APT prefers testing
APT policy: (500, 'testing')
Architecture: i386 (i686)
Kernel: Linux 2.6.24ku
Locale: LANG=en_US.ISO-8859-15, LC_CTYPE=en_US.ISO-8859-15 (charmap=ISO-8859-15)
Shell: /bin/sh linked to /bin/bash
Versions of packages linux-source-2.6.24 depends on:
ii binutils 2.18.1~cvs20080103-1 The GNU assembler, linker and bina
ii bzip2 1.0.5-0.1 high-quality block-sorting file co
Versions of packages linux-source-2.6.24 recommends:
ii gcc 4:4.2.2-2 The GNU C compiler
ii libc6-dev [libc-dev] 2.7-10 GNU C Library: Development Librari
ii make 3.81-3.1 The GNU version of the "make" util
-- no debconf information
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