[Csnd] Midi in on Linux

Date	2011-01-28 10:34
From	Erik de Castro Lopo
Subject	[Csnd] Midi in on Linux
	Hi all, I've got a midi keyboard connected to a USB/Midi interface and I'm running csound as: csound -d -+rtaudio=alsa -o dac -+rtmidi=alsa --midi-device=hw:1,0 \ miditest.csd with the miditest.csd file included below. Unfortunately, I'm not getting any sound, even though I know this has worked in the past. When I run it I get: PortMIDI real time MIDI plugin for Csound virtual_keyboard real time MIDI plugin for Csound PortAudio real-time audio module for Csound 0dBFS level = 32768.0 Csound version 5.13 (double samples) Jan 25 2011 libsndfile-1.0.23 UnifiedCSD: Examples/Midi/miditest.csd STARTING FILE Creating options Creating orchestra Creating score orchname: /tmp/csound-T6wme8.orc scorename: /tmp/csound-Nk02PQ.sco rtaudio: ALSA module enabled rtmidi: ALSA module enabled RAWWAVE_PATH: /usr/share/stk/rawwaves/ orch compiler: instr 10 Elapsed time at end of orchestra compile: real: 0.001s, CPU: 0.000s sorting score ... ... done Elapsed time at end of score sort: real: 0.001s, CPU: 0.000s Csound version 5.13 (double samples) Jan 25 2011 midi channel 1 using instr 10 midi channel 2 using instr 10 midi channel 3 using instr 10 midi channel 4 using instr 10 midi channel 5 using instr 10 midi channel 6 using instr 10 midi channel 7 using instr 10 midi channel 8 using instr 10 midi channel 9 using instr 10 midi channel 10 using instr 10 midi channel 11 using instr 10 midi channel 12 using instr 10 midi channel 13 using instr 10 midi channel 14 using instr 10 midi channel 15 using instr 10 midi channel 16 using instr 10 displays suppressed 0dBFS level = 32768.0 ALSA: opened MIDI input device 'hw:1,0' orch now loaded audio buffered in 256 sample-frame blocks ALSA: -B 1024 not allowed on this device; using 1881 instead ALSA: -b 256 not allowed on this device; using 940 instead ALSA output: total buffer size: 1881, period size: 940 writing 1024-byte blks of shorts to dac SECTION 1: ftable 1: ftable 2: B 0.000 .. 30.000 T 30.000 TT 30.000 M: 0.0 0.0 Score finished in csoundPerform(). inactive allocs returned to freespace end of score. overall amps: 0.0 0.0 overall samples out of range: 0 0 0 errors in performance Elapsed time at end of performance: real: 30.007s, CPU: 2.470s 5168 1024-byte soundblks of shorts written to dac It finds the midi device and the lights on the interface flash when I play notes on the midi keyboard. Regular CSD files containing an ORC and a SCO section work fine. Clues anyone? Cheers, Erik sr = 44100 kr = 4410 ksmps = 10 nchnls = 2 instr 10 iamp ampmidi 5000 icps cpsmidi printf_i "Freq : %f\n", 1, icps agate linenr iamp,0.01,0.1,0.01 asig oscil agate,icps,1 outs asig, asig endin ;Score for simple MIDI instrument f1 0 8192 10 1 ;exponential curve for amp scaling f2 0 129 5 .1 129 1 ;Can be used with MIDI files up to 30 seconds long. f0 30 e

Date	2011-01-28 11:02
From	Andres Cabrera
Subject	Re: [Csnd] Midi in on Linux
	Hi, Csound uses the alsa rawmidi interface, so you probably need to load the virmidi module to have a bridge with alsaseq, which is where the keyboard will probably be: modprobe snd-virmidi You can also use -Ma (instead of --midi-device) to receive from all available MIDI ports. Cheers, Andres On Fri, Jan 28, 2011 at 10:34 AM, Erik de Castro Lopo wrote: > Hi all, > > I've got a midi keyboard connected to a USB/Midi interface and I'm > running csound as: > > csound -d -+rtaudio=alsa -o dac -+rtmidi=alsa --midi-device=hw:1,0 \ > miditest.csd > > with the miditest.csd file included below. > > Unfortunately, I'm not getting any sound, even though I know this has > worked in the past. When I run it I get: > > PortMIDI real time MIDI plugin for Csound > virtual_keyboard real time MIDI plugin for Csound > PortAudio real-time audio module for Csound > 0dBFS level = 32768.0 > Csound version 5.13 (double samples) Jan 25 2011 > libsndfile-1.0.23 > UnifiedCSD: Examples/Midi/miditest.csd > STARTING FILE > Creating options > Creating orchestra > Creating score > orchname: /tmp/csound-T6wme8.orc > scorename: /tmp/csound-Nk02PQ.sco > rtaudio: ALSA module enabled > rtmidi: ALSA module enabled > RAWWAVE_PATH: /usr/share/stk/rawwaves/ > orch compiler: > instr 10 > Elapsed time at end of orchestra compile: real: 0.001s, CPU: 0.000s > sorting score ... > ... done > Elapsed time at end of score sort: real: 0.001s, CPU: 0.000s > Csound version 5.13 (double samples) Jan 25 2011 > midi channel 1 using instr 10 > midi channel 2 using instr 10 > midi channel 3 using instr 10 > midi channel 4 using instr 10 > midi channel 5 using instr 10 > midi channel 6 using instr 10 > midi channel 7 using instr 10 > midi channel 8 using instr 10 > midi channel 9 using instr 10 > midi channel 10 using instr 10 > midi channel 11 using instr 10 > midi channel 12 using instr 10 > midi channel 13 using instr 10 > midi channel 14 using instr 10 > midi channel 15 using instr 10 > midi channel 16 using instr 10 > displays suppressed > 0dBFS level = 32768.0 > ALSA: opened MIDI input device 'hw:1,0' > orch now loaded > audio buffered in 256 sample-frame blocks > ALSA: -B 1024 not allowed on this device; using 1881 instead > ALSA: -b 256 not allowed on this device; using 940 instead > ALSA output: total buffer size: 1881, period size: 940 > writing 1024-byte blks of shorts to dac > SECTION 1: > ftable 1: > ftable 2: > B 0.000 .. 30.000 T 30.000 TT 30.000 M: 0.0 0.0 > Score finished in csoundPerform(). > inactive allocs returned to freespace > end of score. overall amps: 0.0 0.0 > overall samples out of range: 0 0 > 0 errors in performance > Elapsed time at end of performance: real: 30.007s, CPU: 2.470s > 5168 1024-byte soundblks of shorts written to dac > > > It finds the midi device and the lights on the interface flash > when I play notes on the midi keyboard. > > Regular CSD files containing an ORC and a SCO section work fine. > > Clues anyone? > > Cheers, > Erik > > > > > > > sr = 44100 > kr = 4410 > ksmps = 10 > nchnls = 2 > > instr 10 > iamp ampmidi 5000 > icps cpsmidi > > printf_i "Freq : %f\n", 1, icps > > agate linenr iamp,0.01,0.1,0.01 > asig oscil agate,icps,1 > outs asig, asig > endin > > > > > ;Score for simple MIDI instrument > f1 0 8192 10 1 > > ;exponential curve for amp scaling > f2 0 129 5 .1 129 1 > > ;Can be used with MIDI files up to 30 seconds long. > f0 30 > e > > > > > -- > ---------------------------------------------------------------------- > Erik de Castro Lopo > http://www.mega-nerd.com/ > > > Send bugs reports to the Sourceforge bug tracker > https://sourceforge.net/tracker/?group_id=81968&atid=564599 > Discussions of bugs and features can be posted here > To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe csound" > > Send bugs reports to the Sourceforge bug tracker https://sourceforge.net/tracker/?group_id=81968&atid=564599 Discussions of bugs and features can be posted here To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe csound"

Date	2011-01-28 22:18
From	Erik de Castro Lopo
Subject	Re: [Csnd] Midi in on Linux
	Andres Cabrera wrote: > Csound uses the alsa rawmidi interface, so you probably need to load > the virmidi module to have a bridge with alsaseq, which is where the > keyboard will probably be: > > modprobe snd-virmidi Thanks Andres, that was the missing ingredient. Let the fun resume. Cheers, Erik