Re: Audiophile Delta 24/96 Midi Out continuously sends zeroes (alsa 1.0.14)

Re: Audiophile Delta 24/96 Midi Out continuously sends zeroes (alsa 1.0.14)

[Clemens Ladisch]

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?

Is the number of transmitted bytes in /proc/asound/cardX/midi0
about correct?


Regards,
Clemens

Re: Audiophile Delta 24/96 Midi Out continuously sends zeroes (alsa 1.0.14)

[Romain Bossart]

Selon Clemens Ladisch <cladisch@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?

I'll tell you this evening


Thank you !

Romain


>
> Regards,
> Clemens
>

Re: Audiophile Delta 24/96 Midi Out continuously sends zeroes (alsa 1.0.14)

[Romain Bossart]

Romain Bossart wrote:
> Selon Clemens Ladisch <cladisch@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
>>

Re: Audiophile Delta 24/96 Midi Out continuously sends zeroes (alsa 1.0.14)

[Romain Bossart]

Romain Bossart wrote:
> Romain Bossart wrote:
>> Selon Clemens Ladisch <cladisch@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 ?

Thanks

Romain

Re: Audiophile Delta 24/96 Midi Out continuously sends zeroes (alsa 1.0.14)

[Clemens Ladisch]

Romain Bossart wrote:
> Romain Bossart wrote:
> > Romain Bossart wrote:
> >> Selon Clemens Ladisch <cladisch@fastmail.net>:
> >>> 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.
> 
> 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.

That is, the zeroes are _not_ sent when you're not using jack?  When
nothing is connected, or when you use aplaymidi or amidi to send
something, everything is OK?


Regards,
Clemens

Re: Audiophile Delta 24/96 Midi Out continuously sends zeroes (alsa 1.0.14)

[Clemens Ladisch]

Romain Bossart wrote:
> Selon Clemens Ladisch <cladisch@fastmail.net>:
> > That is, the zeroes are _not_ sent when you're not using jack?  When
> > nothing is connected, or when you use aplaymidi or amidi to send
> > something, everything is OK?
> 
> Here is a summary of the various tests I did. I have just one card: Audiophile
> Delta 24/96. My kernel is now 2.6.22.1 RT patched & alsa 1.0.14,
> Audio works perfectly. I don't think jack is the problem.
> 
> Config #2 = Delta Midi Out -> (Midi In) Instrument (Midi Out/Thru) -> Delta Midi
> In and 'amidi -p hw:0,0 -d'. Jack being started or not.
> 
> Symptoms: tons of zeroes are shown by amidi as soon as I launch it. The stream
> is so intense I can actually hear it in my speakers/monitors (need to switch to
> better MIDI cables, I know!). amidi and /proc/asound/card0/midi0 give the same number
> of transmitted bytes.

With "transmitted", you meant "received"?
When Jack is not running, there is no software to send anything.  If the number
of _transmitted_ bytes changes anyway, this would be a bug in ALSA.

> Config #2b = Delta Midi Out -> Delta Midi In
> and 'amidi -p hw:0,0 -d', Jack being started or not.
> 
> Symptoms: identical to config#2. Moreover, if meanwhile I send some Midi commands
> with amidi ('amidi -p hw:0,0 -S C01C'), I don't find this data in my dump.

Apparently, the output port is broken.  While it is theoretically
possible that the driver doesn't initialize the card correctly, I cannot
imagine a bug that would cause the port to presume that there is data to
send.

Could you test if the port sends data even before the driver (or Linux)
is loaded, or in Windows?


Regards,
Clemens

Re: Audiophile Delta 24/96 Midi Out continuously sends zeroes (alsa 1.0.14)

[Romain Bossart]

Clemens Ladisch wrote:
> Romain Bossart wrote:
>> Selon Clemens Ladisch <cladisch@fastmail.net>:
>>> That is, the zeroes are _not_ sent when you're not using jack?  When
>>> nothing is connected, or when you use aplaymidi or amidi to send
>>> something, everything is OK?
>> Here is a summary of the various tests I did. I have just one card: Audiophile
>> Delta 24/96. My kernel is now 2.6.22.1 RT patched & alsa 1.0.14,
>> Audio works perfectly. I don't think jack is the problem.
>>
>> Config #2 = Delta Midi Out -> (Midi In) Instrument (Midi Out/Thru) -> Delta Midi
>> In and 'amidi -p hw:0,0 -d'. Jack being started or not.
>>
>> Symptoms: tons of zeroes are shown by amidi as soon as I launch it. The stream
>> is so intense I can actually hear it in my speakers/monitors (need to switch to
>> better MIDI cables, I know!). amidi and /proc/asound/card0/midi0 give the same number
>> of transmitted bytes.
> 
> With "transmitted", you meant "received"?
> When Jack is not running, there is no software to send anything.  If the number
> of _transmitted_ bytes changes anyway, this would be a bug in ALSA.
Oops, 'reveived' is correct. Thank you.


>> Config #2b = Delta Midi Out -> Delta Midi In
>> and 'amidi -p hw:0,0 -d', Jack being started or not.
>>
>> Symptoms: identical to config#2. Moreover, if meanwhile I send some Midi commands
>> with amidi ('amidi -p hw:0,0 -S C01C'), I don't find this data in my dump.
> 
> Apparently, the output port is broken.  While it is theoretically
> possible that the driver doesn't initialize the card correctly, I cannot
> imagine a bug that would cause the port to presume that there is data to
> send.
You're right the output port seems to be broken.

> 
> Could you test if the port sends data even before the driver (or Linux)
> is loaded, or in Windows?
> 

I am not sure I can try this. I will change my card.

> 
> Regards,
> Clemens
> 
Thank you very much for your help.

Regards,
Romain

Re: Audiophile Delta 24/96 Midi Out continuously sends zeroes (alsa 1.0.14)

[Romain Bossart]

Hi all, Hi Clemens,

just for your information, the midi out was broken.
I grabbed a bought an old layla and everything works now.

Thank you again for your help.

Cheers,
Romain


Romain Bossart wrote:
> 
> Clemens Ladisch wrote:
>> Romain Bossart wrote:
>>> Selon Clemens Ladisch <cladisch@fastmail.net>:
>>>> That is, the zeroes are _not_ sent when you're not using jack?  When
>>>> nothing is connected, or when you use aplaymidi or amidi to send
>>>> something, everything is OK?
>>> Here is a summary of the various tests I did. I have just one card: Audiophile
>>> Delta 24/96. My kernel is now 2.6.22.1 RT patched & alsa 1.0.14,
>>> Audio works perfectly. I don't think jack is the problem.
>>>
>>> Config #2 = Delta Midi Out -> (Midi In) Instrument (Midi Out/Thru) -> Delta Midi
>>> In and 'amidi -p hw:0,0 -d'. Jack being started or not.
>>>
>>> Symptoms: tons of zeroes are shown by amidi as soon as I launch it. The stream
>>> is so intense I can actually hear it in my speakers/monitors (need to switch to
>>> better MIDI cables, I know!). amidi and /proc/asound/card0/midi0 give the same number
>>> of transmitted bytes.
>> With "transmitted", you meant "received"?
>> When Jack is not running, there is no software to send anything.  If the number
>> of _transmitted_ bytes changes anyway, this would be a bug in ALSA.
> Oops, 'reveived' is correct. Thank you.
> 
> 
>>> Config #2b = Delta Midi Out -> Delta Midi In
>>> and 'amidi -p hw:0,0 -d', Jack being started or not.
>>>
>>> Symptoms: identical to config#2. Moreover, if meanwhile I send some Midi commands
>>> with amidi ('amidi -p hw:0,0 -S C01C'), I don't find this data in my dump.
>> Apparently, the output port is broken.  While it is theoretically
>> possible that the driver doesn't initialize the card correctly, I cannot
>> imagine a bug that would cause the port to presume that there is data to
>> send.
> You're right the output port seems to be broken.
> 
>> Could you test if the port sends data even before the driver (or Linux)
>> is loaded, or in Windows?
>>
> 
> I am not sure I can try this. I will change my card.
> 
>> Regards,
>> Clemens
>>
> Thank you very much for your help.
> 
> Regards,
> Romain