Hi,
> > I'm seeing that USB MIDI keyboard (M-Audio Keystation 88es) is
> > generating note-on events on both note-on and note-off. The difference
> > being that note-off is generating an note-on event with velocity '0'.
> >
> > The following code in seq_midi_emul.c(snd_midi_process_event) looks
> > suspiciously like what's needed for this device:
> >
> > /* Make sure that we don't have a note on that should really be
> > * a note off */
> > if (ev->type == SNDRV_SEQ_EVENT_NOTEON && ev->data.note.velocity == 0)
> > ev->type = SNDRV_SEQ_EVENT_NOTEOFF;
>
> This code is irrelevant. This is for MIDI emulation like emu10k1
> WaveTable, not for the real MIDI device.
>
> Basically the given behavior is not a bug. The sequencer handles
> note-on with velocity 0 as it is. As a strict definition, note-off
> and note-on with zero velocity are different although they are used
> widely as identical in order to save bytes.
Thanks; I've looked into MIDI specs, and it was documented everywhere;
it was just not obvious when I was looking into ALSA docs.
regards,
junichi
--
dancer@{debian.org,netfort.gr.jp} Debian Project
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