Linux-audio-user

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3 participants
20662 discussions

[linux-audio-user] how to record streaming audio?

by airplays55＠yahoo.com

I want to run a sound recorder like audacity to record what is coming thru my soundcard when playing streaming audio thru xmms. However audacity can't open the audio port /dev/dsp when streaming audio is playing. This is on knoppix 3.4 using the OSS driver. Would using ALSA make this possible? __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

21 years, 1 month

[linux-audio-user] ices-jack pico-howto

by Joern Nettingsmeier

hi everyone! in case you were wondering how to get ices-jack to stream your jack graphs out on the net, here's a quick howto: browse svn.xiph.org, get the following modules from /trunk: ao, vorbis, ogg, ogg2, theora, speex, vorbis-tools, ogg-tools (do this even if you have ogg packages from your distro installed, it won't do no harm and makes sure you've got the latest'n'greatest) there's nothing interesting to configure afaik, so you can compile them (in that order) without interaction: for i in ao vorbis ogg ogg2 theora speex vorbis-tools ogg-tools; do svn co http://svn.xiph.org/trunk/$i; cd $i; ./configure && make install ; cd .. ; done from icecast/branches/kh, check out libshout, icecast, ices again, not really anything to configure, so the for-loop can do the grunt work... now fire up icecast, fire up ices, connect it to your jack graph, and the fun starts. the default config files are extensively commented, but here's my config, in case you need some more inspiration: http://spunk.dnsalias.org/download/ices.xml http://spunk.dnsalias.org/download/icecast.xml (the source and server run on different hosts, and icecast runs chrooted and as user icecast) btw, a graph with an ogg edge between ices-jack and xmms-jack vertices makes a nice delay effect :) if you use feedback, there's interesting sound deterioration due to repeated ogg-encoding/decoding and noise buildup. here's me toying around with my bass and such a setup: http://spunk.dnsalias.org/download/netjam.ogg have fun jörn -- "Debugging is twice as hard as writing the code in the first place. Therefore, if you write the code as cleverly as possible, you are, by definition, not smart enough to debug it." - Brian W. Kernighan Jörn Nettingsmeier Lortzingstr. 11, 45128 Essen, Germany http://spunk.dnsalias.org (my server) http://www.linuxaudiodev.org (Linux Audio Developers)

21 years, 1 month

Re: [linux-audio-user] MIDI on alsa with SBLIve

by davidrclark＠earthlink.net

Chris Cannam posted: > Because sfArk and sfpack compress soundfonts much better than > zip/gzip/bzip2 can. This is absolutely correct. The reason is that text files repeat character sequences exactly whenever words and other character combinations are used over and over again. The "normal" compression methods build tables and utilize this precisely repetitive nature effectively. Audio files repeat character sequences only approximately, so are not recognized as being almost the same even though they sound the same, hence are regarded as new sequences. True binary files (e.g. stripped executables) look pretty much random, also, to one of these compression algorithms. The random appearance of audio files is one reason why MP3, sfark, etc. were developed. To distinguish between these latter techniques: As most people know by now, MP3 is a lossy technique which means that information is lost never to be seen again. sfark is not. These soundfont compression techniques are a compromise between loss of information and effective compression. Some out there may be using MP3's in place of such compression schemes as sfark's, believing that MP3's are as good or better due to the good compression ratios obtainable. This is at a fairly heavy cost. I would advise against it generally, which is the reason I'm spending time posting this. MP3 is fine for distribution over limited-resource channels, but not so fine for soundfonts/samples. Hope this helps someone out there. Now I really am going to try to get caught up.... Regards to everyone, Dave.

21 years, 1 month

[linux-audio-user] A question on Interrupt Pin routing

by Louis Lam

Hello everyone, Currently I have my soundcard on IRQ9. /proc/interrupt shows this: CPU0 0: 208542 XT-PIC timer 1: 3710 XT-PIC keyboard 2: 0 XT-PIC cascade 8: 4 XT-PIC rtc 9: 1458611 XT-PIC Ensoniq AudioPCI 10: 1446 XT-PIC eth0 12: 98030 XT-PIC PS/2 Mouse 14: 41633 XT-PIC ide0 15: 563 XT-PIC ide1 NMI: 0 LOC: 208492 ERR: 0 MIS: 0 When I inspected further using lspci, I noticed under "interrupts:" of the soundcard it says "pin A routed to IRQ 9". There is another device, the SMBus Controller which has "Interrupt: pin B routed to IRQ 9". Does it mean that this IRQ is still shared? What does pin A/pinB mean and if they both route to the same interrupt, will it cause problems when recording? Thanks For any clues or info regarding this, Louis. P.S The Full lspci output is as follow: 0000:00:00.0 Host bridge: Intel Corp. 82875P Memory Controller Hub (rev 02) Subsystem: Intel Corp. 82875P Memory Controller Hub Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ >SERR- <PERR- Latency: 0 Region 0: Memory at f8000000 (32-bit, prefetchable) [size=64M] Capabilities: [e4] #09 [2106] Capabilities: [a0] AGP version 3.0 Status: RQ=32 Iso- ArqSz=2 Cal=0 SBA+ ITACoh- GART64- HTrans- 64bit- FW+ AGP3- Rate=x1,x2,x4 Command: RQ=1 ArqSz=0 Cal=2 SBA+ AGP+ GART64- 64bit- FW- Rate=<none> 0000:00:01.0 PCI bridge: Intel Corp. 82875P Processor to AGP Controller (rev 02) (prog-if 00 [Normal decode]) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- Status: Cap- 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 32 Bus: primary=00, secondary=01, subordinate=01, sec-latency=32 I/O behind bridge: 0000f000-00000fff Memory behind bridge: fc900000-fe9fffff Prefetchable memory behind bridge: f0800000-f47fffff BridgeCtl: Parity- SERR- NoISA- VGA+ MAbort- >Reset- FastB2B- 0000:00:03.0 PCI bridge: Intel Corp. 82875P Processor to PCI to CSA Bridge (rev 02) (prog-if 00 [Normal decode]) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- Status: Cap- 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 32 Bus: primary=00, secondary=02, subordinate=02, sec-latency=0 I/O behind bridge: 0000b000-0000bfff Memory behind bridge: fea00000-feafffff Prefetchable memory behind bridge: fff00000-000fffff BridgeCtl: Parity- SERR+ NoISA+ VGA- MAbort- >Reset- FastB2B- 0000:00:1e.0 PCI bridge: Intel Corp. 82801BA/CA/DB/EB/ER Hub interface to PCI Bridge (rev c2) (prog-if 00 [Normal decode]) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 0 Bus: primary=00, secondary=03, subordinate=03, sec-latency=32 I/O behind bridge: 0000c000-0000cfff Memory behind bridge: fff00000-000fffff Prefetchable memory behind bridge: fff00000-000fffff BridgeCtl: Parity- SERR+ NoISA+ VGA- MAbort- >Reset- FastB2B- 0000:00:1f.0 ISA bridge: Intel Corp. 82801EB/ER (ICH5/ICH5R) LPC Bridge (rev 02) Control: I/O+ Mem+ BusMaster+ SpecCycle+ MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 0 0000:00:1f.1 IDE interface: Intel Corp. 82801EB/ER (ICH5/ICH5R) Ultra ATA 100 Storage Controller (rev 02) (prog-if 8a [Master SecP PriP]) Subsystem: Intel Corp.: Unknown device 425a Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 0 Interrupt: pin A routed to IRQ 10 Region 0: I/O ports at <unassigned> Region 1: I/O ports at <unassigned> Region 2: I/O ports at <unassigned> Region 3: I/O ports at <unassigned> Region 4: I/O ports at ffa0 [size=16] Region 5: Memory at 3fe3f400 (32-bit, non-prefetchable) [size=1K] 0000:00:1f.2 IDE interface: Intel Corp. 82801EB (ICH5) Serial ATA 150 Storage Controller (rev 02) (prog-if 8f [Master SecP SecO PriP PriO]) Subsystem: Intel Corp.: Unknown device 425a Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap- 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 0 Interrupt: pin A routed to IRQ 10 Region 0: I/O ports at ec00 [size=8] Region 1: I/O ports at e800 [size=4] Region 2: I/O ports at e400 [size=8] Region 3: I/O ports at e000 [size=4] Region 4: I/O ports at dc00 [size=16] 0000:00:1f.3 SMBus: Intel Corp. 82801EB/ER (ICH5/ICH5R) SMBus Controller (rev 02) Subsystem: Intel Corp.: Unknown device 425a Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Interrupt: pin B routed to IRQ 9 Region 4: I/O ports at d800 [size=32] 0000:01:00.0 VGA compatible controller: nVidia Corporation NV5M64 [RIVA TNT2 Model 64/Model 64 Pro] (rev 11) (prog-if 00 [VGA]) Subsystem: CardExpert Technology: Unknown device 8888 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 32 (1250ns min, 250ns max) Interrupt: pin A routed to IRQ 11 Region 0: Memory at fd000000 (32-bit, non-prefetchable) [size=16M] Region 1: Memory at f2000000 (32-bit, prefetchable) [size=32M] Expansion ROM at fe9f0000 [disabled] [size=64K] Capabilities: [60] Power Management version 1 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 PME-Enable- DSel=0 DScale=0 PME- Capabilities: [44] AGP version 2.0 Status: RQ=32 Iso- ArqSz=0 Cal=0 SBA- ITACoh- GART64- HTrans- 64bit- FW- AGP3- Rate=x1,x2,x4 Command: RQ=1 ArqSz=0 Cal=0 SBA- AGP- GART64- 64bit- FW- Rate=<none> 0000:02:01.0 Ethernet controller: Intel Corp. 82547EI Gigabit Ethernet Controller (LOM) Subsystem: Intel Corp.: Unknown device 3025 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap+ 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 0 (63750ns min), Cache Line Size: 0x10 (64 bytes) Interrupt: pin A routed to IRQ 10 Region 0: Memory at feae0000 (32-bit, non-prefetchable) [size=128K] Region 2: I/O ports at bc00 [size=32] Capabilities: [dc] Power Management version 2 Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+) Status: D0 PME-Enable- DSel=0 DScale=1 PME- 0000:03:02.0 Multimedia audio controller: Ensoniq ES1370 [AudioPCI] Subsystem: Unknown device 4942:4c4c Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=slow >TAbort- <TAbort+ <MAbort+ >SERR- <PERR- Latency: 248 (3000ns min, 32000ns max) Interrupt: pin A routed to IRQ 9 Region 0: I/O ports at cc00 [size=64] ________________________________________________________________________ Yahoo! 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21 years, 1 month

[linux-audio-user] Alsa problems with nforce2

by Leandro Monk

Hi: I 've try to use the alsa driver for my nforce2... when i try load the module snd-intel8x0, the system say me: /lib/modules/2.4.26-1-386/alsa/snd-intel8x0.o: init_module: No such device Hint: insmod errors can be caused by incorrect module parameters, including invalid IO or IRQ parameters. You may find more information in syslog or the output from dmesg /lib/modules/2.4.26-1-386/alsa/snd-intel8x0.o: insmod /lib/modules/2.4.26-1-386/alsa/snd-intel8x0.o failed /lib/modules/2.4.26-1-386/alsa/snd-intel8x0.o: insmod snd-intel8x0 failed My /proc/pci is: Multimedia audio controller: nVidia Corporation nForce2 AC97 Audio Controler (MCP) (rev 161). IRQ 5. Master Capable. No bursts. Min Gnt=2.Max Lat=5. I/O at 0xd800 [0xd8ff]. I/O at 0xdc00 [0xdc7f]. Non-prefetchable 32 bit memory at 0xec002000 [0xec002fff]. Bus 0, device 8, function 0: I use Debian sarge, and instal this packages: alsa-base, alsa-modules, alsa-utils. alsa-lib ¿Any idea to fix this problem? -- Leito Monk -------------------- Miembro de CaFeLUG www.cafelug.org.ar -------------------

21 years, 1 month

Re: [linux-audio-user] using cat to send a MIDI string ?

by Pedro Lopez-Cabanillas

On Wednesday 22 September 2004, Dave Phillips wrote: > I'm trying to send a MMC message to Ardour to set it up to receive MIDI > time code. Apparently Ardour will follow MTC but it has to receive an > MMC Start message first. So far I'm still unsuccessful, even with your > suggestions, but I'll keep at it. You can use "amidi", from "alsa-utils": $ amidi -S 'F0 43 10 4C 00 00 7E 00 F7' sends an XG Reset to the default port; `man amidi` for details. To can use "echo", too: $ echo -ne '\xf0\x7f\x01\x06\x02\xf7' > /dev/midi01 BTW, you can try a MIDI realtime message "start" like this: $ echo -ne '\xfa' > /dev/midi The message "f0 7f f7 06 02 f7" is not a valid MMC command, because the device-id 0xf7 is also the EOX status byte. It should be a number between 00 and 0x7f. Regards, Pedro

21 years, 1 month

[linux-audio-user] Turtle Beach Santa Cruz and MIDI

by Hans Fugal

How do I get my TB SantaCruz (cs46xx) to make sound when it gets midi events? I assume this would involve a wavetable, but I'd be happy with FM synth or any terrible sounding piano sound as well. My cpu is not really up to the task of sequencing and softsynthing at the same time. -- De gustibus non disputandum est.

21 years, 1 month

Re: [linux-audio-user] Turtle Beach Santa Cruz and MIDI

by Hans Fugal

On Tue, 21 Sep 2004 08:52:17 -0700, Russell Hanaghan <hanaghan(a)starband.net> wrote: > On Tuesday 21 September 2004 08:34 am, Hans Fugal wrote: > > The card works great for PCM. > > > > Which software I use to patch the midi depends on my mood, but usually > > aconnectgui or aconnect. > > > > Haven't been fiddling with jack or Qjackctl yet. > > > > I'm trying to get my midi controller keyboard to make noise out the > > soundcard, is all. > > Hmmm. Ok...so maybe the wrong midi device? How many midi devices show > in /dev/snd ? If more than one, try patching around. $ ls /dev/snd controlC0 midiC0D0 pcmC0D0p pcmC0D2p pcmC1D0c pcmC1D1c seq controlC1 pcmC0D0c pcmC0D1p pcmC0D3p pcmC1D0p pcmC1D1p timer The TB is card 0. > TB also has several outs for pcm (Surround stuff) but sound like your already > using the card for normal stereo audio. I will fiddle with the mixer more this evening. Perhaps the fm synth is on master1 or some other pcm... fugalh@falcon:~$ aconnect -oil client 0: 'System' [type=kernel] 0 'Timer ' 1 'Announce ' Connecting To: 63:0 client 64: 'CS46XX - Rawmidi 0' [type=kernel] 0 'CS46XX ' (the keyboard is turned off and I'm not at home to turn it on) -- De gustibus non disputandum est.

21 years, 1 month

[linux-audio-user] No X - LADSPA

by Martin Rocamora

Hi. I'm tring to use a GNU/Linux machine as a real-time effects box (live - reverb, eq). I wonder if I could use real-time LADSPA plug-ins but with no X server (to improve latency). I mean something like JACK Rack but from a shell terminal. Thanks Martín.

21 years, 1 month

[linux-audio-user] A page to help others

by thewade

So now that my machine is %99 percent there I have made a page that represents my work so that others might get some help without asking all the questions I did: http://www.aproximation.org/application/AMD64laptop.html Its filled with misspellings and is not really complete. Only use will determine what actually works and what doesnt, but its a beginning at any rate. Im going to post this on a few other lists as well, so I appologize if you get this message more than once. Thanks for all your help! -thewade

21 years, 1 month

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Linux-audio-user