Re: Q <-> using alsa for midi through

[Joachim Schiele <js@dune2.de>]

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On Thursday 27 November 2003 21:08, Joachim Schiele wrote:

YEPEE! i got it working.
it's as following:

no i'm using the mc50 (midi sequencer of roland) as kind of 'midifilter'
my new setup is:

Q ----> MC 50 -------> PC -------> Q

and this is perfecly working!

can someone explain that?



note:
this wasn't working before!
Q ------> PC -------> Q

joachim

> dear list members,
>
> =<problem>=========================================================
>
> i want to user the Q as masterkeyboard and muse as sequencer to record the
> notes, but how? i can't get the Q working with the alsa midi through!
>
> how can i change my setup that working with the Waldorf Q as masterkeyboard
> and the PC (midi through==1) as Master, so i can play the Q and record it!
>
> first my setup:
> | Waldorf Q | -out----in-> PC -out----in-> | Waldorf Q|
>
> with either muse (midi trough set!) or this command: (dd
> if=/dev/snd/midiC0D0 bs=1 of=/dev/snd/midiC0D0)
> also note that "local off" is set on the Q so it can't trigger itselfe
> locally, only over the midi wire trough the pc!
>
> when i play the Q, strange things happen:
> -not every note is triggered (many don't get through)
> -faster playing (5-10 fingers on keys on Q) get diffrent midi error like
> sending cc or program changes like pitch up, change of midi port numbers,
> suddenly other sounds appear.
> -also strange sounds like sqeezing or very high never ending tones appear.
>
> i know that this is not a BUG of the Waldorf Q because it is working with
> the MC 50 (hardware sequencer from roland) well!
>
> =<other stuff>=========================================================
> if i set up the emu10k1 midiIN/OUT <-> muse (midi seq),
> i can send midi-out perfectly form my pc <-> waldorf Q / MC 307 when i'm
> playing with the virtual muse midi-keyboard!
>
> what i can do (what's working):
> -can send sysex(dump) from waldorf Q successfully to PC (no faults)
> -can receive every sysex i sent from my PC <-> Q
> -can sent notes from muse to either the Q or MC 307 with success (virtual
> keyboard of muse)!
>
> special: with midi trough=1
> -using this command:
> (dd if=/dev/snd/midiC0D0 bs=1 of=/dev/snd/midiC0D0)
>
> it is working with the following setup:
> | MC 307 | out----in> PC out----in> | MC 307 |
>
> and it's even working with hi midi bandwith usage of the MC 307!
>
> =<setup of alsa>=========================================================
>
> version of alsa i'm useing:
> -1pre1 the latest source!
> kernel:
> -2.4.22
> soundcard:
> -emu10k1 with 2-3m large midicable
>
>
> # aconnect -l -i
> client 0: 'System' [type=kernel]
>     0 'Timer           '
>     1 'Announce        '
>         Connecting To: 63:0
> client 64: 'Rawmidi 0 - EMU10K1 MPU-401 (UART)' [type=kernel]
>     0 'EMU10K1 MPU-401 (UART)'
> joachim@debian:~$ aconnect -l -i -o
> client 0: 'System' [type=kernel]
>     0 'Timer           '
>     1 'Announce        '
>         Connecting To: 63:0
> client 64: 'Rawmidi 0 - EMU10K1 MPU-401 (UART)' [type=kernel]
>     0 'EMU10K1 MPU-401 (UART)'
> client 65: 'Emu10k1 WaveTable' [type=kernel]
>     0 'Emu10k1 Port 0  '
>     1 'Emu10k1 Port 1  '
>     2 'Emu10k1 Port 2  '
>     3 'Emu10k1 Port 3  '
>
> # lsmod
> snd-seq-oss            28928   0 (autoclean) (unused)
> iptable_filter          1772   0 (autoclean) (unused)
> ip_tables              14976   1 [iptable_filter]
> sd_mod                 11084   0 (autoclean)
> snd-pcm-oss            38244   0
> snd-seq-midi            4000   0 (unused)
> snd-mixer-oss          13360   1 [snd-pcm-oss]
> snd-emu10k1-synth       4764   0 (unused)
> snd-emu10k1            73348   1 [snd-emu10k1-synth]
> snd-pcm                59780   0 [snd-pcm-oss snd-emu10k1]
> snd-hwdep               5248   0 [snd-emu10k1]
> snd-page-alloc          6228   0 [snd-emu10k1 snd-pcm]
> snd-ac97-codec         46484   0 [snd-emu10k1]
> snd-emux-synth         27676   0 [snd-emu10k1-synth]
> snd-util-mem            1280   0 [snd-emu10k1 snd-emux-synth]
> snd-seq-midi-emul       4960   0 [snd-emux-synth]
> snd-seq-virmidi         3272   0 [snd-emux-synth]
> snd-seq-midi-event      3328   0 [snd-seq-oss snd-seq-midi snd-seq-virmidi]
> snd-seq                36400   2 [snd-seq-oss snd-seq-midi
> snd-emux-synthsnd-seq-midi-emul snd-seq-virmidi snd-seq-midi-event]
> snd-timer              14436   0 [snd-pcm snd-seq]
> snd-rawmidi            13600   0 [snd-seq-midi snd-emu10k1 snd-seq-virmidi]
> snd-seq-device          4256   0 [snd-seq-oss snd-seq-midi
> snd-emu10k1-synth snd-emu10k1 snd-emux-synth snd-seq snd-rawmidi]
> snd                    32484   0 [snd-seq-oss snd-pcm-oss snd-seq-midi
> snd-mixer-oss snd-emu10k1 snd-pcm snd-hwdep snd-ac97-codec snd-emux-synth
> snd-util-mem snd-seq-virmidi snd-seq-midi-event snd-seq snd-timer
> snd-rawmidi snd-seq-device]
>
> joachim@debian:~$ cat /proc/asound/devices
>   1:       : sequencer
>   0: [0- 0]: ctl
>   4: [0- 0]: hardware dependent
>   8: [0- 0]: raw midi
>  19: [0- 3]: digital audio playback
>  26: [0- 2]: digital audio capture
>  25: [0- 1]: digital audio capture
>  16: [0- 0]: digital audio playback
>  24: [0- 0]: digital audio capture
>   9: [0- 1]: raw midi
>  10: [0- 2]: raw midi
>  33:       : timer
>
> joachim@debian:~$ cat /proc/asound/cards
> 0 [Live           ]: EMU10K1 - Sound Blaster Live!
>                      Sound Blaster Live! (rev.4) at 0xc000, irq 9
>
> joachim@debian:~$ cat /proc/asound/seq/drivers
> snd-emu10k1-synth,loaded,1
> snd-seq-midi,loaded,1
> snd-seq-oss,loaded,requested,1
> joachim@debian:~$ cat /proc/asound/seq/oss
> OSS sequencer emulation version 0.1.8
> ALSA client number 63
> ALSA receiver port 0
>
> Number of applications: 0
>
> Number of synth devices: 1
>
> synth 0: [Emu10k1]
>   type 0x1 : subtype 0x20 : voices 64
>   capabilities : ioctl enabled / load_patch enabled
>
> Number of MIDI devices: 5
>
> midi 0: [EMU10K1 MPU-401 (UART)] ALSA port 64:0
>   capability read/write / opened none
>
> midi 1: [Emu10k1 Port 0] ALSA port 65:0
>   capability write / opened none
>
> midi 2: [Emu10k1 Port 1] ALSA port 65:1
>   capability write / opened none
>
> midi 3: [Emu10k1 Port 2] ALSA port 65:2
>   capability write / opened none
>
> midi 4: [Emu10k1 Port 3] ALSA port 65:3
>   capability write / opened none
>
> tnx in advice!
>
> if something is missing, i will mail it on request!
>
> sorry for my bad english!

- -- 
gruss,
joachim schiele
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