* Reading from the output buffer [not found] <000e01c7165d$ceeebaf0$dedde354@dwnze> @ 2006-12-03 18:34 ` Sean D'Epagnier 2006-12-08 19:16 ` emu10k1 mute problems Oliver Schinagl 0 siblings, 1 reply; 4+ messages in thread From: Sean D'Epagnier @ 2006-12-03 18:34 UTC (permalink / raw) To: alsa-devel Hi, I thought it would be cool to write a simple spectrum analizer to work with any alsa player, and display it with an ncurses interface. I have checked various alsa docs, and I can't figure out how to read the output buffer data back in. Thanks, Sean ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV ^ permalink raw reply [flat|nested] 4+ messages in thread
* emu10k1 mute problems. 2006-12-03 18:34 ` Reading from the output buffer Sean D'Epagnier @ 2006-12-08 19:16 ` Oliver Schinagl 2006-12-09 1:28 ` James Courtier-Dutton 2006-12-09 8:05 ` Jaroslav Kysela 0 siblings, 2 replies; 4+ messages in thread From: Oliver Schinagl @ 2006-12-08 19:16 UTC (permalink / raw) To: alsa-devel Hi, I am wondering if there's a bugzilla or some place to drop a bugreport for my SBLive! (emu10k1)? I have in my system 2 soundcards installed, an SBLive! emu10k1 ( 00:0e.0 Multimedia audio controller: Creative Labs SB Live! EMU10k1 (rev 0a) Subsystem: Creative Labs SBLive! Player 5.1 Flags: bus master, medium devsel, latency 32, IRQ 19 I/O ports at ef20 [size=32] Capabilities: [dc] Power Management version 1 ) and an Onboard VIA audio thinger ( 00:11.5 Multimedia audio controller: VIA Technologies, Inc. VT8233/A/8235/8237 AC97 Audio Controller (rev 60) Subsystem: ASUSTeK Computer Inc. Unknown device 810d Flags: medium devsel, IRQ 20 I/O ports at 1000 [size=256] Capabilities: [c0] Power Management version 2 ) on a gentoo 2.6.19-r1 kernel Now they both are working but there's one thing that seems to be going wrong. Since it only happens on the SBLive (the via onboard works as it should) it must be a bug in the emu10k1 driver. I use the following code to mute the left resp. right channels. snd_mixer_selem_set_playback_switch(elem, SND_MIXER_SCHN_FRONT_LEFT, 0); snd_mixer_selem_set_playback_switch(elem, SND_MIXER_SCHN_FRONT_RIGHT, 0); However, when muting the left channel, both channels get muted. When muting the the right channel, none get muted. It's not just my app that shows this behavious, gkrellm-volume plugin for instance does the same thing (wrong). Since there aren't really much mixers that do balance properly, there isn't much other volume controls I can test this with. I do however notice in alsamixer, that below the bar, it says [MM] or [OO] on the SBLive!, but with the Via, I get all possibilities done, including [MO] or [OM]. Thanks, Oliver ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: emu10k1 mute problems. 2006-12-08 19:16 ` emu10k1 mute problems Oliver Schinagl @ 2006-12-09 1:28 ` James Courtier-Dutton 2006-12-09 8:05 ` Jaroslav Kysela 1 sibling, 0 replies; 4+ messages in thread From: James Courtier-Dutton @ 2006-12-09 1:28 UTC (permalink / raw) To: Oliver Schinagl; +Cc: alsa-devel Oliver Schinagl wrote: > Hi, > > I am wondering if there's a bugzilla or some place to drop a bugreport > for my SBLive! (emu10k1)? Please report this but to the ALSA bug tracker. https://bugtrack.alsa-project.org/alsa-bug/ See the link from http://alsa-project.org/ I think the problem you describe is that the emu10k1 has a single mute control for both channels, so you do not have the left/right mute. You need to do a test first to find out if the is separate left/right mute or if they are separate. If there is only one, the "SND_MIXER_SCHN_FRONT_LEFT" controls both channels. Maybe it would be sensible to change the alsa-lib api so either SND_MIXER_SCHN_FRONT_LEFT or SND_MIXER_SCHN_FRONT_RIGHT will control both left/right is the mute control is shared. > > Now they both are working but there's one thing that seems to be going > wrong. Since it only happens on the SBLive (the via onboard works as it > should) it must be a bug in the emu10k1 driver. > > I use the following code to mute the left resp. right channels. > > snd_mixer_selem_set_playback_switch(elem, SND_MIXER_SCHN_FRONT_LEFT, 0); > snd_mixer_selem_set_playback_switch(elem, > SND_MIXER_SCHN_FRONT_RIGHT, 0); > > However, when muting the left channel, both channels get muted. When > muting the the right channel, none get muted. It's not just my app that > shows this behavious, gkrellm-volume plugin for instance does the same > thing (wrong). > > > Since there aren't really much mixers that do balance properly, there > isn't much other volume controls I can test this with. I do however > notice in alsamixer, that below the bar, it says [MM] or [OO] on the > SBLive!, but with the Via, I get all possibilities done, including [MO] > or [OM]. > > Thanks, > > Oliver > ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: emu10k1 mute problems. 2006-12-08 19:16 ` emu10k1 mute problems Oliver Schinagl 2006-12-09 1:28 ` James Courtier-Dutton @ 2006-12-09 8:05 ` Jaroslav Kysela 1 sibling, 0 replies; 4+ messages in thread From: Jaroslav Kysela @ 2006-12-09 8:05 UTC (permalink / raw) To: Oliver Schinagl; +Cc: alsa-devel On Fri, 8 Dec 2006, Oliver Schinagl wrote: > Hi, > > I am wondering if there's a bugzilla or some place to drop a bugreport > for my SBLive! (emu10k1)? > > I have in my system 2 soundcards installed, an SBLive! emu10k1 ( > 00:0e.0 Multimedia audio controller: Creative Labs SB Live! EMU10k1 (rev 0a) > Subsystem: Creative Labs SBLive! Player 5.1 > Flags: bus master, medium devsel, latency 32, IRQ 19 > I/O ports at ef20 [size=32] > Capabilities: [dc] Power Management version 1 > ) > and an Onboard VIA audio thinger ( > 00:11.5 Multimedia audio controller: VIA Technologies, Inc. > VT8233/A/8235/8237 AC97 Audio Controller (rev 60) > Subsystem: ASUSTeK Computer Inc. Unknown device 810d > Flags: medium devsel, IRQ 20 > I/O ports at 1000 [size=256] > Capabilities: [c0] Power Management version 2 > > ) > > on a gentoo 2.6.19-r1 kernel > > Now they both are working but there's one thing that seems to be going > wrong. Since it only happens on the SBLive (the via onboard works as it > should) it must be a bug in the emu10k1 driver. > > I use the following code to mute the left resp. right channels. > > snd_mixer_selem_set_playback_switch(elem, SND_MIXER_SCHN_FRONT_LEFT, 0); > snd_mixer_selem_set_playback_switch(elem, > SND_MIXER_SCHN_FRONT_RIGHT, 0); Wrong code. You have to use snd_mixer_selem_set_playback_switch_all() if snd_mixer_selem_has_playback_switch_joined() flag is set. Perhaps, single channel operations should return an error in this case to show the broken part to application developers. Jaroslav ----- Jaroslav Kysela <perex@suse.cz> Linux Kernel Sound Maintainer ALSA Project, SUSE Labs ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV ^ permalink raw reply [flat|nested] 4+ messages in thread
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[not found] <000e01c7165d$ceeebaf0$dedde354@dwnze>
2006-12-03 18:34 ` Reading from the output buffer Sean D'Epagnier
2006-12-08 19:16 ` emu10k1 mute problems Oliver Schinagl
2006-12-09 1:28 ` James Courtier-Dutton
2006-12-09 8:05 ` Jaroslav Kysela
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