Linux-audio-user January 2010

linux-audio-user@lists.linuxaudio.org

166 participants
153 discussions

by Harry Van Haaren

Nooo.... FireWire! good latencies to be had.. :-) 4.35 millisec with Hexter synth, played for 15 mins with Seq24, 0 xruns while playing.. (did have 3 while loading though.. needa work on that :-) Check the AudioFire 2<http://www.echoaudio.com/products/firewire/audiofire2/index.php>page for exact details, but it has RCA SPDIF & MIDI, 2 TRS ins & 2 TRS out. Its headphones jack is on seperate connections in JACK, so you can monitor sound on the phones without it being on your main outs. (Ideal for DJing). Any specific q's, just ask! -Harry

16 years

[LAU] MIDI control from laptop touchpad?

by Raine M. Ekman

Is there some piece of software to use the touchpad on a laptop as a MIDI controller in Linux? If not, is there a need for one and what features would you like to see in it? I've been tinkering a bit with the source to Synclient that interfaces with the Synaptics touchpad driver in X, and there isn't too much to do to get it to output MIDI. So, I'm asking here to avoid reinventing the wheel. -- Raine M. Ekman ...... raine(a)iki.fi the Radio Project ... http://www.mikseri.net/artists/?id=36109&displ_lang=en

16 years

[LAU] Fwd: mx44 softsynth - help!?

by Gwenhwyfaer

On 21/01/2010, Marius Stoica <mariustoica(a)gmail.com> wrote: > Hi, > did you installed the latest version mx44.2 found here > http://web.comhem.se/luna/ ? > it is less cryptic and has some new features. It also has a new dependency, on GTK higher than 2.10, which stops it compiling on Slackware <= 12.0. Part of the appeal of Mx44.1, for me, was that it compiled and ran on just about anything.

16 years

[LAU] M-Audio Axiom 49

by Ectropic Harmony

Hi there! I have an M-Audio Axiom 49-key keyboard with several trigger pads, rotary encoders, sliders, function buttons, and transport buttons. Is there a way to program those buttons for various purposes in Linux? Thanks!

16 years

[LAU] Pengutronix Patched Firmware

by David Baron

Yep, they have a linux-firmware-nonfree package. This is very dangerous because many folks have multiple kernels, some patched, some not, and those firmware packages must serve ALL of them.

16 years

[LAU] mx44 softsynth - help!?

by Mark Hadman

I'm desperately trying to get to grips with the mx44 synth (http://hem.passagen.se/ja_linux/). It looks like it's very powerful, and crucially it runs with low resources (I'm using a custom Ubuntu 8.10 on the OLPC XO laptop). Unfortunately mx44 is very undocumented, to the point of several of the widgets in the GUI not even having labels. Could somebody answer these basic questions? (1) How are the 4 oscillators enumerated (left->right or top->bottom)? (2) What do the unlabeled radio buttons and check-boxes do? (3) Where are the frequency / pitch key follow controls? If I start a patch from scratch I can't get an oscillator to make more than one pitch. Perhaps I need to bring a second oscillator into play? thanks, mh.

16 years

[LAU] Music for the deaf

by Simon Fielding

My sister is a specialist teacher for hearing-impaired primary school children. As part of her curriculum she includes music and in particular, nursery rhymes etc for the younger children. She would like them to be able to sing these at home with and/or for their parents. For those children with non-hearing-impaired parents, this is not a problem but many of the children also have hearing-impaired parents. Therefore she would like to produce a CD of her singing for the children to take home and use. I would really appreciate any help members can give me as I am not a professional musician or recording engineer. 1) She will be singing unaccompanied (she is a trained singer and is perfectly competent to do this) in an alto register to avoid any distraction for the children from accompaniments etc. Does anyone have any suggestions about this? (eg effects for recording, effects for the headphone mix etc) 2) This one's a bit more specialist so you may not be able to help - hearing impairment often starts with loss of high frequency response. The obvious thing would seem to be to boost these but I don't know if that would be correct. Does anyone know? Any comments on any other aspects of this project would also be more than welcome. Hopeful regards, Simon

16 years

[LAU] Does my audio card has a hardware MIDI synthesizer?

by Cedric Roux

Hi people from LAU, I have a problem. Maybe you can help me. I searched the web, but couldn't find the info. So the question is in the title. Here is what I know about the card (the computer is at work, I don't have full specs). It's a Dell, Intel CPU, standard stuff I guess. The audio card is on the PCI bus. Here is what lspci has to say about that. ---- 00:1b.0 Audio device [0403]: Intel Corporation 82801I (ICH9 Family) HD Audio Controller [8086:293e] (rev 02) Subsystem: Dell Device [1028:0214] Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 64 bytes Interrupt: pin A routed to IRQ 16 Region 0: Memory at fdffc000 (64-bit, non-prefetchable) [size=16K] Capabilities: [50] Power Management version 2 Flags: PMEClk- DSI- D1- D2- AuxCurrent=55mA PME(D0+,D1-,D2-,D3hot+,D3cold+) Status: D0 PME-Enable- DSel=0 DScale=0 PME- Capabilities: [60] Message Signalled Interrupts: Mask- 64bit+ Queue=0/0 Enable- Address: 0000000000000000 Data: 0000 Capabilities: [70] Express (v1) Root Complex Integrated Endpoint, MSI 00 DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <64ns, L1 <1us ExtTag- RBE- FLReset+ DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported- RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop+ MaxPayload 128 bytes, MaxReadReq 128 bytes DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+ TransPend- LnkCap: Port #0, Speed unknown, Width x0, ASPM unknown, Latency L0 <64ns, L1 <1us ClockPM- Suprise- LLActRep- BwNot- LnkCtl: ASPM Disabled; Disabled- Retrain- CommClk- ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt- LnkSta: Speed unknown, Width x0, TrErr- Train- SlotClk- DLActive- BWMgmt- ABWMgmt- Capabilities: [100] Virtual Channel <?> Capabilities: [130] Root Complex Link <?> Kernel driver in use: HDA Intel Kernel modules: snd-hda-intel ---- I bet the important stuff is the 1028:0214 PCI number, right? Alsa shows no MIDI device whatsoever (there is a 'Midi Through' stuff, but that does not count, right?). So I'm stuck here. Any help is welcome. Yeah, timidity works fine, that's not the point. I want to use the hardware synthesizer (if there is one). Thanks, Cédric.

16 years

[LAU] [OT] Hardware - Inventobox

by Ray Rashif

Remember OpenStomp? Well, this time we have one like that, just purely analogue. At NAMM, Zachary Vex (Z.Vex) debuts his first hackable pedal kit: http://www.wired.com/gadgetlab/2010/01/namm-a-mad-professor-of-the-stompbox… I was never into boutique, but that may change; I may build my own. -- GPG/PGP ID: B42DDCAD

16 years

[LAU] Guitar

by teza

Hi all, it's all what we need but for Linux!!! http://www.prscables.com/guitarbud Regards eza

16 years

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Linux-audio-user January 2010