[alsa-devel] Audiophile Delta 24/96 Midi Out continuously sends zeroes (alsa 1.0.14)

Romain Bossart romain.bossart at free.fr
Sun Sep 2 14:03:19 CEST 2007

Romain Bossart wrote:
> Romain Bossart wrote:
>> Selon Clemens Ladisch <cladisch at fastmail.net>:
>>> Romain Bossart wrote:
>>>> My audiophile 24/96 Midi Out sends zeroes continuously,
>>>> so I can't use any instrument. I checked that with amidi
>>>> by looking at the stream output of a connected instrument
>>>> (midi out -> instrument -> midi in -> amidi). Zeroes are
>>>> sent whether or not I try to send (normal) midi messages.
>>> Would it be possible to connect the midi out directly to the
>>> midi in?
>> I also tried it, same results.
>>> Is the number of transmitted bytes in /proc/asound/cardX/midi0
>>> about correct?
> Yes, the number is correct. After a reboot, I prepared amidi
> to output the incoming midi stream and switched on my instrument
> for 2 seconds approx : around 10kB of zeroes were counted by
> amidi and /proc/asound/card0/midi0.
>> Thank you !
>> Romain
>>> Regards,
>>> Clemens

Actually, the same exact number of zeroes were sent.
I must acknowledge I used jack for connecting amidi...
I looks like jack sends the zeroes as soon as it is
started. Would someone have a clue ?



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