Archive of the former Yahoo!Groups mailing list: MOTM

previous by date index next by date
previous in topic topic list next in topic

Subject: Re: MOTM-650 V1.3 RC1 bugs reported

From: "djbrow54" <davebr@...>
Date: 2006-10-08

Ok - OK -OK - you caught me. It was my code, writen for an AVR late
at night. I wanted to check MIDI notes 0 - 12 so just did a quick
transposition down 2 octaves with a simple subtraction. I thought I
caught wrap arounds but didn't. I picked up the bad notes on my MIDI
monitor (also written for an AVR and for sale by John Loffink) and
they hosed the -650. Probably should have kept it my dark secret
instead of mentioning it since it caused so much confusion.

Let me set the record straight ...

No, they were not illegal notes, but realtime messages.
Yes, the follow on bytes were illegal since I dropped the midi note.
Yes, I did violate MIDI specifications, however unintentioned
No, I am not Russian
No, I do not do VST plug-ins, all my code is assembly
Yes, I am sorry.
Yes, I am sorry.
Yes, I am sorry.

Now, back to writing some more test code for the -650. Anything else
you guys want me to test!!!

Dave

--- In motm@yahoogroups.com, "Paul Schreiber" <synth1@...> wrote:
>
> >> b) sending "illegal" MIDI notes (outside the defined 127 note
range) to the
> >> MOTM-650. Apparently, some software programs do this.
> >
> > How is this possible? MIDI Notes only have a possibility of 128
total
> > notes because of 7 bits. If the top bit is set, it's no longer a
MIDI
> > note.
>
> Apparently, crappy VST plug-ins written by Russian students. But
they were
> 'free', right? :)
>
> Paul S.
>