Re: Lost MIDI messages
Re: Lost MIDI messages
- Subject: Re: Lost MIDI messages
- From: Todd Blanchard <email@hidden>
- Date: Fri, 25 Apr 2008 15:00:55 -0700
Intel - so is my user with the issue.
On Apr 25, 2008, at 12:25 PM, Mike Stoddard wrote:
Todd, is your Mac PPC or Intel? Mine is PPC, and I
got the impression from M-Audio that only PPC drivers
were effected.
Cheers,
-Mike
Todd Blanchard wrote:
I got curious and updated one of my machines to 10.4.11. I found
no change. Also, the messages don't show up in MIDI Monitor - so
does the hardware driver even matter? I think there is something
environmental but I can't imagine what it is.
-Todd Blanchard
On Apr 24, 2008, at 8:48 PM, Mike Stoddard wrote:
The difference between 10.4.9 and 10.4.11 DOES matter.
M-Audio's drivers all had to be rewritten for 10.4.11.
I reported bugs in AudioMidiSetup to Apple when I
upgraded from ..10 to ..11. No one has ever explained
what happened, but there certainly were some important
changes in CoreAudioMidi at that time.
Anyone at Apple know what happened?
Oddly enough, MOTU's D.A. drivers were NOT effected
by the changes. I wonder why.
Cheers,
-Mike Stoddard
Todd Blanchard wrote:
I have a user who is testing my application and he reports that
program change messages are only getting through about half to
one third of the time. These are messages I'm writing to an
external MIDI interface to control a Roland RD300SX.
The RD300SX has kind of an odd protocol for patch changing - you
send it a MIDI Control 0 value 87, a MIDI Control 32 value 67-ish
to select the right bank, and then a MIDI Program Change with
some value.
I've instrumented my code and print out the messages I'm about to
send and again immediately after. No exceptions are thrown and I
see no errors. All messages are sent.
However, using MIDI Monitor to spy on sent messages, they only
make it out about 1/2 to 1/3 of the time on his machine.
On my machine, MIDI Monitor faithfully reports all messages I
send - no droppage at all. (My user is halfway around the world
so I'm relying on what he tells me).
His OS is 10.4.11 - I'm using 10.4.9. Not that I think it matters.
Can I buy a clue what would cause message loss like that? Wonky
MIDI driver for his device? His setup
MacBook 2ghz w/ 2GB of ram
OSX 10.4.11
Presonus Firepod (Audio use only)
Unitor AMT 8 MIDI interface (MIDI only)
I think the Unitor is an older device but I don't know much about
it. I'm stumped.
-Todd Blanchard
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Coreaudio-api mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Coreaudio-api mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden