Hello,
I've been using pd over the last few months on an XP machine, but now poritng a project onto a Mac computer.

Using the test audio and MIDI menu I get audio signal (out of a USB audio device) but no MIDI signal. I tested playing back a MIDI file using quicktime - no problem hearing the Beatles at their best(!)

What could be happening?

the Pd manual directions are a bit esoteric

"To get MIDI working, you have to do the Mac OSX magic to get a USB MIDI interface installed. I've seen this done with Midisport devices and I think you just download the OSX driver and follow directions."

So i did that, and instaled the driver for an M-Audo MIDISPORT device. From the MIDI Set Up panel, the device shows up with its "online" box checked.

From the System Preferences-> Quicktime -> advance panel-> set to "quicktime music synthesizer" is selected.

Running pd 0.39.2 test 5 on Mac 10.4.8

Any help much appreciated! i will keep perusing the net for more info meanwhile.
jean
ps: I don't plan on using any MIDI cintrol, just having Pd play some MIDI files along with some fm synhesis.

jack is very straighforward, and i come to the same conclusion about its functinality. linking simple synth outputs to pd's inputs is just a clicking job in jack, with an indication the connection is made.

"channel 2" should have been typed "channels: 2" , just means the number of channels connected, i'm just routing stereo.

but much thanx for the input.
j

under preferences:
input device1: jack, channel 2
output device1: same as input.

compute audio is checked on

under the media menu:->port audio:
input device 1 : jack router 2 channels
output device 1: jack server 2 channels

under the media menu->jack
input device1: jack, channel 2
output device1: same as input. channel 2

the machine i'm using is a g5 xserve machine with a virtual output, located in a rack far away from me, behind the locked doors of an IT dept that has granted me remote desktop access. Though while it was at my place it was connected to an USB audio interface it had sound output when doing the audio/ MIDI tests or just patching an oscillator.

I'm not doing realtime audio output but recording to an mp3. my mp3 contains sounds generated from oscillators and samples, but none from the MIDI instrument i am triggering inside pd and played through simple synth.

Curiously jack display in its routing window both pd and simple synth, but also another instance of pd, named: pure_data_0, though i don't have two instances of pd running simultaneously.

I emailed jackosx and stephane letz replied back saying:

"Last time i checked the way PureData access jack, it was just broken! I mean the PD jack
code (implemented in a s_audio_jackd.c) has several problems, one of which is *never*
correctly closing the jack client. This could explain the fact you see several instances
of jack client.

I suggest to send a mail to PD developer and signaling the problem."

his comments makes me think the same problem cold be encountered using soundflower. so before i go down that patch, i'd rather finish thoroughly troubleshooting this combo, with the help of other users...
jean

yup.
and jack is showing me there are 4 active connections (2 from simple synth, 2 from pd)

jean

but it's not yet working for me...

i'm just trying out jack, and though i understand how it it works, i dont get any signal back in pd using the adc~ object, which i thought would be where simple synth's output would appear?

j

what about on the input side? i'm trying to get pd's MIDI out back in as audio.

I'm using jack(on osx) to route simple synth(using to turn the MIDI signal into instruments sounds) back into pd, but in pd i don't know which object to use to receive the audio signal from simple synth's output.

jean

I've used what seems like a roundabout way by running simplesynth(which uses Qt music synth), but stillI don't understand how/why pd doesn't use OSX's onboard synth. But that part is functional and now my next aim is to record both the MIDI triggered sound and the oscillators as an aif or mp3 (its not a performance piece but a accumulation piece!).

So thanx Nestor for your reply, coz now I;ll look into midipipe and see what it does, but i beieve I'll need to look for an audio rewire app to route simplesynth's output back into pd. i think that'll be done with something like JACK.
If you know any info throw it my way, its much welcome.