Linux-audio-user March 2004

linux-audio-user@lists.linuxaudio.org

138 participants
168 discussions

by C. Villard

Well nothing special ; dialog box comes with 2 indications : Card : Sis SI7012 and Chip: Analog Devices AD1980 Cursors appears for, in order : master, master mono, master surround, PCM, Surround, Center, LFE, Line, CD, Mic (with 2 points red above, record I assume), Phone and Aux That's all ... well .... Message: 2 Date: Thu, 11 Mar 2004 19:09:13 +0000 From: "Andreas Andersson" <alhambra5p(a)hotmail.com> Subject: Re: [linux-audio-user] jack trouble To: linux-audio-user(a)music.columbia.edu Message-ID: <BAY14-F9t1FFK7dcLdZ0001159e(a)hotmail.com> Content-Type: text/plain; format=flowed What happens when you run alsamixer?? /AA ------------------ Loading driver... /usr/sbin/alsaconf: line 568: rcalsasound: command not found Setting default volumes... =============================================================================== Now ALSA is ready to use. For adjustment of volumes, please use alsamixer or gamix. Have a lot of fun! _________________________________________________________________ The new MSN 8: smart spam protection and 2 months FREE* http://join.msn.com/?page=features/junkmail linux-audio-user-request(a)music.columbia.edu wrote: >Send linux-audio-user mailing list submissions to > linux-audio-user(a)music.columbia.edu > >To subscribe or unsubscribe via the World Wide Web, visit > http://music.columbia.edu/mailman/listinfo/linux-audio-user >or, via email, send a message with subject or body 'help' to > linux-audio-user-request(a)music.columbia.edu > >You can reach the person managing the list at > linux-audio-user-owner(a)music.columbia.edu > >When replying, please edit your Subject line so it is more specific >than "Re: Contents of linux-audio-user digest..." > > >Today's Topics: > > 1. Re: Kernel 2.6.x latency (Frank Barknecht) > 2. Re: jack trouble (Andreas Andersson) > 3. a quick ALSA recording question (Dave Phillips) > 4. Re: Kernel 2.6.x latency (Stephen Hassard) > 5. Re: Kernel 2.6.x latency (James Stone) > 6. IRQ settings and low latency (Greg Jednaszewski) > 7. LilyPond interview on linuxmusician.com (Chris Cannam) > 8. Re: Kernel 2.6.x latency (Jack O'Quin) > 9. Re: a quick ALSA recording question (Emiliano Grilli) > 10. Re: Kernel 2.6.x latency (Jack O'Quin) > 11. Re: a quick ALSA recording question (Dave Phillips) > 12. Re: Kernel 2.6.x latency (Stephen Hassard) > > >---------------------------------------------------------------------- > >Message: 1 >Date: Thu, 11 Mar 2004 18:21:15 +0100 >From: Frank Barknecht <fbar(a)footils.org> >Subject: Re: [linux-audio-user] Kernel 2.6.x latency >To: A list for linux audio users <linux-audio-user(a)music.columbia.edu> >Message-ID: <20040311172115.GB6778(a)fliwatut.scifi> >Content-Type: text/plain; charset=us-ascii > >Hallo, >Sampo Savolainen hat gesagt: // Sampo Savolainen wrote: > > > >>Yes. I have pre-empt enabled from the kernel configuration. Is there >>something I need to do from the running system to enable it? >> >>(I mean something like: >> echo 1 > /proc/sys/.../lowlatency ) >> >> > >No, you don't need something like this for preempt, AFAIK. > >Another thing to check would be your X server's nice value. This used >to be "-10" in older Debians, but should not be set at all with 2.6. > >Check this in /etc/X11/Xwrapper.config or >/etc/X11/Xwrapper.config.xserver-common-debconf > >ciao > >

21 years

Re: [linux-audio-user] Kernel 2.6.x latency

by Stephen Hassard

Hi, Has anyone tried the different IO schedulers with 2.6? I've seen some systems that feel much more responsive with the non-default Deadline scheduler than the default anticipatory scheduler .. I haven't done any audio specific latency tests though. later, Steve Jack O'Quin wrote: > James Stone <stone1(a)btinternet.com> writes: > > >>On Thu, Mar 11, 2004 at 06:21:15PM +0100, Frank Barknecht wrote: > > >>>Another thing to check would be your X server's nice value. This used >>>to be "-10" in older Debians, but should not be set at all with 2.6. > > >>How disappointing.. I just tried this, and it didn't help.. I was almost >>sure this was going to work. I am still getting many more xruns than >>with the low latency 2.4.x kernels though at least I am not getting >>xruns on opening and closing windows! >> >>However, on doing a top in 2.6.x I noticed that quite a few processes >>are running with a nice of -10 (something called "event" among >>others..). This does not appear to be the case in 2.4.x.. perhaps this >>could be the source of the trouble.. not really sure how to fix it >>though. > > > This makes me wonder if there is a bug in the scheduler. IIUC, a > realtime thread is *supposed* to have higher priority than any > non-SCHED_FIFO thread, regardless of "nice" value. > > If we can nail down a case where this is definitely happening, someone > should report it to Andrew Morton. > > >>I will have to stick with 2.4.25 for the time being by the looks of >>things. > > > You can almost certainly get better low-latency results that way, at > least for the moment. I hope that over time 2.6.x will become just as > good.

21 years

Re: [linux-audio-user] jack trouble

by Andreas Andersson

What happens when you run alsamixer?? /AA ------------------ Loading driver... /usr/sbin/alsaconf: line 568: rcalsasound: command not found Setting default volumes... =============================================================================== Now ALSA is ready to use. For adjustment of volumes, please use alsamixer or gamix. Have a lot of fun! _________________________________________________________________ The new MSN 8: smart spam protection and 2 months FREE* http://join.msn.com/?page=features/junkmail

21 years

Re: [linux-audio-user] Kernel 2.6.x latency

by Stephen Hassard

doing a 'dpkg-reconfigure xserver-common' should allow access to modifying this. Frank Barknecht wrote: > Hallo, > Sampo Savolainen hat gesagt: // Sampo Savolainen wrote: > > >>Yes. I have pre-empt enabled from the kernel configuration. Is there >>something I need to do from the running system to enable it? >> >>(I mean something like: >> echo 1 > /proc/sys/.../lowlatency ) > > > No, you don't need something like this for preempt, AFAIK. > > Another thing to check would be your X server's nice value. This used > to be "-10" in older Debians, but should not be set at all with 2.6. > > Check this in /etc/X11/Xwrapper.config or > /etc/X11/Xwrapper.config.xserver-common-debconf > > ciao

21 years

[linux-audio-user] Kernel 2.6.x latency

by Sampo Savolainen

Hello, I'm trying to get jack & ardour working with the 2.6.x kernels. Do you have any hints/tips? I've now tried: debian 2.6.2 debian 2.6.3 debian 2.6.3 modified with LSM support + realtime module standard 2.6.4-rc2-mm1 (couldn't get realtime module working) standard 2.6.3-mm4 LSM support + realtime module (kinda working..) None of these have provided me with sufficient latency. Jack keeps throwing Ardour out for stupid reasons like closing the mixer window. (with realtime module, I mean http://www.joq.us/realtime/) Is there some magic trick I've forgotten to do, or I haven't heard of? I have DMA enabled on my harddrive, and this same system runs like dream with 2.4 kernels. Thanks Sampo

21 years

RE: [linux-audio-user] Good Sound Card for Pro Multitracking

by Polashek, Matthew

I would simply prefer to be able to hit 96K. I definitely need an external A/D/D/A unit for sound quality reasons. I can probably use external mic pre-amps. I have been considering using a Presonus DIGImaxLt with a RME Hammerfall 9652 but I think it ends up being cheaper to get an outboard box with balanced ins and outs and throwing some kind of 8 channel mic pre in front of it, unless there was a less expensive ALSA compatible option that had 8 mic pres and 8 outs. Matthew Polashek Associate Editor, Silver Burdett Ginn - Music Scott Foresman/Pearson Education 299 Jefferson Road Parsippany, NJ 07054-0480 office: 973.739.8709 fax: 973.739.8098 Matthew.Polashek(a)scottforesman.com > ---------- > From: Mark Knecht > Reply To: A list for linux audio users > Sent: Monday, March 8, 2004 1:45 PM > To: A list for linux audio users > Subject: Re: [linux-audio-user] Good Sound Card for Pro Multitracking > > Polashek, Matthew wrote: > > I am operating with 2 main scenarios in mind. I am a jazz musician so I > > would like to be able to record live shows and mix PA and Monitors for a > > quartet so that's about 8 in and 6 out. I need fully balanced inputs to > > prevent hum on live gigs. The second scenario is using the rig for my > > recording studio. (a work that is still in progress) I would need > multiple > > inputs and outputs here as well. > > > > Matthew Polashek > > Associate Editor, Silver Burdett Ginn - Music > > Scott Foresman/Pearson Education > > 299 Jefferson Road > > Parsippany, NJ 07054-0480 > > office: 973.739.8709 > > fax: 973.739.8098 > > Matthew.Polashek(a)scottforesman.com > > > > > > Up to 44.1/48K? Or do you *require* 96K or 192K? > > In all case I would recommend an external A/D/D/A unit. I see the price > going up... > > - Mark > > > > **************************************************************************** This email may contain confidential material. If you were not an intended recipient, please notify the sender and delete all copies. We may monitor email to and from our network. ****************************************************************************

21 years

[linux-audio-user] [ANN] FreePats Project

by Mark Constable

freepats is a project to create a free and open set of GUS compatible patches that can be used with softsynths such as Timidity and WildMidi. Please use the Wiki for notes and discussion and send any unencumbered free patches for inclusion in these patch sets to "freepats at opensrc dot org". Regular contributors can ask for the ftp password for direct upload and management of the patch sets. http://freepats.opensrc.org --markc

21 years

RE: [linux-audio-user] Timidity and ALSA compile bug!

by Reuben Martin

Why are you trying to install version 2.9.5? That code in ancient. The ALSA API has changed significantly several times since that code was released. It's no wonder you can't get it to compile. I compiled 2.13.0_rc2 last night. Works great, not to mention it has jack support. http://timidity.sourceforge.net -Reuben -----Original Message----- From: jm [mailto:jm@world.waena.edu] Sent: Wednesday, March 10, 2004 9:16 AM Cc: A list for linux audio users Subject: [linux-audio-user] Timidity and ALSA compile bug! Hi All, I have been pulling my hair out trying to compile timidity... I configure thusly... ./configure --enable-audio-oss --enable-interface=gtk --enable-audio=alsa --enable-server --enable-alsaseq When I 'make' I get the following error. make[2]: Entering directory `/usr/src/MUSIC/TiMidity++-2.9.5/timidity' gcc -DHAVE_CONFIG_H -I. -I. -I.. -I.. -I.. -I../libarc -I../libunimod -I../interface -I../utils -I/usr/local/include -I/usr/X11R6/include -I/usr/include/gtk-1.2 -I/usr/include/glib-1.2 -I/usr/lib/glib/include -DAU_ALSA -DPKGDATADIR=\"/usr/local/share/timidity\" -DPKGLIBDIR=\"/usr/local/lib/timidity\" -DDEFAULT_PATH=\"/usr/local/share/timidity\" -DTIMIDITY_OUTPUT_ID=\"s\" -O2 -c alsa_a.c alsa_a.c:52: conflicting types for `snd_pcm_t' /usr/local/include/alsa/pcm.h:300: previous declaration of `snd_pcm_t' alsa_a.c: In function `check_sound_cards': alsa_a.c:116: storage size of `ctl_hw_info' isn't known alsa_a.c:117: storage size of `pcm_info' isn't known alsa_a.c:152: warning: passing arg 2 of `snd_ctl_open' makes pointer from integer without a cast alsa_a.c:152: too few arguments to function `snd_ctl_open' alsa_a.c:186: warning: passing arg 2 of `snd_ctl_pcm_info' makes pointer from integer without a cast alsa_a.c:186: too many arguments to function `snd_ctl_pcm_info' alsa_a.c:194: `SND_PCM_INFO_PLAYBACK' undeclared (first use in this function) alsa_a.c:194: (Each undeclared identifier is reported only once alsa_a.c:194: for each function it appears in.) alsa_a.c: In function `set_playback_info': alsa_a.c:235: `snd_pcm_playback_info_t' undeclared (first use in this function) alsa_a.c:235: parse error before "pinfo" alsa_a.c:237: storage size of `pparams' isn't known alsa_a.c:238: storage size of `pstatus' isn't known alsa_a.c:248: `pinfo' undeclared (first use in this function) alsa_a.c:263: `SND_PCM_PINFO_8BITONLY' undeclared (first use in this function) alsa_a.c:265: `SND_PCM_PINFO_16BITONLY' undeclared (first use in this function) alsa_a.c:277: request for member `rate' in something not a structure or union alsa_a.c:298: request for member `channels' in something not a structure or union alsa_a.c:300: request for member `channels' in something not a structure or union alsa_a.c:306: `SND_PCM_FMT_S16_LE' undeclared (first use in this function) alsa_a.c:311: request for member `format' in something not a structure or union alsa_a.c:311: `SND_PCM_SFMT_S16_LE' undeclared (first use in this function) alsa_a.c:342: `SND_PCM_FMT_U8' undeclared (first use in this function) alsa_a.c:347: request for member `format' in something not a structure or union alsa_a.c:347: `SND_PCM_SFMT_U8' undeclared (first use in this function) alsa_a.c:383: request for member `channels' in something not a structure or union alsa_a.c: In function `open_output': alsa_a.c:541: `SND_PCM_OPEN_PLAYBACK' undeclared (first use in this function) alsa_a.c:541: warning: passing arg 1 of `snd_pcm_open' from incompatible pointer type alsa_a.c:541: warning: passing arg 2 of `snd_pcm_open' makes pointer from integer without a cast alsa_a.c: In function `acntl': alsa_a.c:673: storage size of `pstatus' isn't known make[2]: *** [alsa_a.o] Error 1 make[2]: Leaving directory `/usr/src/MUSIC/TiMidity++-2.9.5/timidity' make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory `/usr/src/MUSIC/TiMidity++-2.9.5' make: *** [all-recursive-am] Error 2 [root@innanu /usr/src/MUSIC/TiMidity++-2.9.5]# I don't get it! My /usr/include/sound|sys|alsa are all synced (to the alsa includes), but those defines dont exist in any of the includes anyway I can;t ust a compiled RPM as I need the alsa-sequencer part, which isn;t compiled into any rpm I have tried (about 10!) However, in the pcm.h there IS a var called SND_PCM_FORMAT_U8 vs SND_PCM_FMT_U8. I can't believe this... there must be a version of the pch.h that uses the FMT other than FORMAT. This seems so obvious an error I can;t believe I see nothing on the net about it. In addition snd_pcm_t is defined twice... the type in pcm.h conflicting with the instance in timidity's alsa_a.c I have search thru every pcm.h I have.. with no luck. I found one refernce in google (http://cvs.sourceforge.net/viewcvs.py/alsa/alsa-driver/cards/Attic/card-dum…) which refers to the card_dummy.c, but I don;t have (want) and dummy as I have a real card. Does anyone have a clue as to why this is and how to fix it? Thanks... --------- info --------- Version: TiMidity++-2.9.5 ALSA: 1.0.3 Linux: 2.6.4-rc2 /etc/modules.conf ---BEGIN--- alias parport_lowlevel parport_pc alias usb-controller usb-uhci alias char-major-116 snd options snd major=116 cards_limit=1 alias sound-slot-0 snd-intel8x0 alias snd-card-0 snd-intel8x0 options snd-intel8x0 index=0 id="ICH" mpu_port=0x330 alias sound-slot-1 snd-card-1 alias snd-card-1 snd-virmidi alias char-major-14 soundcore alias sound-service-0-0 snd-mixer-oss alias sound-service-0-1 snd-seq-oss alias sound-service-0-3 snd-pcm-oss alias sound-service-0-8 snd-seq-oss alias sound-service-0-12 snd-pcm-oss alias /dev/mixer snd-mixer-oss alias /dev/dsp snd-pcm-oss alias /dev/midi snd-seq-oss install sound-slot-0 /sbin/modprobe --ignore-install sound-slot-0 && { /bin/aumix-minimal -f remove sound-slot-0 { /bin/aumix-minimal -f /etc/.aumixrc -S >/dev/null 2>&1; /bin/true; }; / alias eth0 8139too alias char-major-89 i2c-dev ---END---

21 years

[linux-audio-user] ZynAddSubFX uses XML format - please test it

by davidrclark＠earthlink.net

Paul, I agree with Tim Hall's post: Thank you so much for writing such a great software synthesizer. Because you posted on LAU, I hope you don't mind my posting here. Perhaps (esp. with Jack), it may help someone out there... In reading writing XML, I found that it did not behave properly with respect to extensions: In asking to save new.xml, it saved newxml. Also, it could not find newxml because it looked for new.xml for Load. It also seems to load an unknown file when it cannot find anything. That is, instead of displaying "File not found" it seems to load something else. To get Jack to work, I went to src/Output and uncommented the jack_connect lines. I then substituted alsa_pcm:playback_1 and alsa_pcm:playback_2 for alsa_pcm:out_1 and alsa_pcm:out_2. Then it worked for Jack. I did not look at jack_RT. Thanks again, Paul. Very, very nice work. Best regards, Dave.

21 years

Re: [linux-audio-user] [Fwd: Edirol FA-101 Linux Support]

by Errandir

> From: Dan Harper <tech(a)danharper.org> > > I just sent this e-mail to Edirol. It may be useful to someone if > they're contacting them or any other company for Linux support. > > > Dan The FA-101 is based on the BridgeCo BEBOB, like a number of other products from Apogee, Tascam and Presonus that were presented at NAMM. If we could get support from one of these vendors it should be (relatively) easy to get them all working. People also talked about the M-Audio FW410 on this list before. I know it uses the DM1000 inside. Anyone know if FW410 is also based on BEBOB? Is anybody in touch with BridgeCo, or any info wrt their stand on Linux? But all this won't get us around the Yamaha connection management issue, will it? Martin http://www.bridgeco.net/products/bebob/bebob.shtml

21 years

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Linux-audio-user March 2004