Hallo,
(cc'ing the list back.)
Thoralf Schulze hat gesagt: // Thoralf Schulze wrote:
--- Frank Barknecht fbar@footils.org wrote:
thanks a million for your answer.
First: Running pd -oss is not deprecated or anything. I mostly use "-oss" myself. So if it works, just stick with it.
So I guess I'll stick with the oss emulation, I just got pd decently married to it. it still strikes me as weird that the oss emulation of alsa is capable of doing things that the underlying alsa doesn't seem to support.
It's the other way around: ALSA's OSS emulation is a simplified way to access the ALSA devices. To directly access the ALSA devices, the application, Pd, needs to do a bit more configuration, which seems to be broken somewhat in Pd.
while we're at it, another question regarding midi: you wrote a while ago (http://lists.puredata.info/pipermail/pd-list/2005-10/031793.html) that it is possible to get data from an usb midi controller into pd by using the /dev/midi* files. I actually do have a bunch of them:
vj@thoralf ~ $ ls /dev/midi* -al crw-rw---- 1 root audio 14, 2 31. Aug 15:23 /dev/midi crw-rw---- 1 root audio 35, 0 14. Feb 2006 /dev/midi0 crw-rw---- 1 root audio 14, 2 14. Feb 2006 /dev/midi00 crw-rw---- 1 root audio 14, 18 14. Feb 2006 /dev/midi01 crw-rw---- 1 root audio 14, 34 14. Feb 2006 /dev/midi02 crw-rw---- 1 root audio 14, 50 14. Feb 2006 /dev/midi03 crw-rw---- 1 root audio 14, 50 21. Aug 19:52 /dev/midi3
Hm, no /dev/midi1 or /dev/midi2? Try to create them with:
cd /dev && MAKEDEV audio
I understand that I need to load the snd-usb-audio module (pd -listdev without this module returns
input devices:
- OSS MIDI device #1
output devices:
- OSS MIDI device #1
, both are not working) to access the controller. with this module loaded, i get
input devices:
- OSS MIDI device #1
- OSS MIDI device #2
output devices:
- OSS MIDI device #1
- OSS MIDI device #2
, but none if these devices actually works. I tried various iterations of -mididev x , to no avail. am i missing another module? and how do i get alsa to load snd-usb-audio when it starts up?
I don't remember what distribution you're on, but on Debian based systems you can just add your soundcard modules to /etc/modules. They will get loaded in the order they appear there. So add your normal soundcard module there and then snd-usb-audio at the end there to make the USB midi device show up as the last device.
You may also want to load "snd-seq-midi" there, and make sure, "snd-rawmidi" is loaded as well, but I guess, it is already.
Regarding the midi devices: If you start Pd with "-mididev 2" it will try to open /dev/midi1, if you start with "-mididev 1,2" it will look for /dev/midi0 and /dev/midi1. It's always the -mididev number minus
- Another example: -mididev 33 will search /dev/midi32
Do you have more than one USB sound/midi card? Then I could also tell you some more tricks how to configure these to a specific order involving the "pid=" and "vid=" module options for snd-usb-audio.
Just make sure you don't load the old OSS modules (add
audio usb-midi
to /etc/hotplug/blacklist
Regarding the midi problem: Here I would say, using -alsamidi should be the preferred way. Pd's alsamidi support is quite good, but it's missing one crucial feature: autoconnect to devices on startup.
Hopefully it will get this one fine day, then the hassle with OSS midi will be over.
Ciao
Frank Barknecht _ ______footils.org_ __goto10.org__