Yamaha DTXpress/DTXplorer/DTXtreme

Ronald:

Ok, good info in your reply. As A test to try and pin-point the failure,
could you try recording a program change by itself? i.e.:

Place a MIDI keyboard MIDI out to the DTX MIDI in (no other connections!)
Place the DTX in record mode
Send a patch change to patch 16 on channel 7
hit middle c
send a patch change to patch 35 on channel 7
hit middle c.
Stop the DTX record mode
Play back the recording, should be middle C of one instrument, followed
by middle c of another.
Power cycle the unit
Play back the recording, should be middle C of one instrument, followed
by middle c of another.

(BTW: substitute the patch and channel numbers of your choice, somthing
high contrast like piano then strings... 16/35 and the MIDI channel were
just demo data)

I haven't tried this myself but you have me curious and I just may do it
to see what happens when I do it! Also, you could then play the MIDI
sequence from the DTX out to a sequencer and look at the actual data to
see if the program changes are still there or if they are mangled
somewhow...

Also, the "measure of changes before the song" suggestion was to insure
the patch changes got sent by >themselves<, rather than mixed with a
bunch of other data causing the DTX to try and interpret them while it is
busy trying to produce sound. I had some older gear on occasion that
would not respond reliably to a MIDI change if it was in the middle of
playing a note or was otherwise too busy. By placing all the patch
changes b4, it might eliminate the problem if it is a "can't respond to
that right now, I'm busy" issue.

Also, in any case like this, I suggest you remove as many variables from
the equation as possible. For testing I would have the DTX module and my
MIDI keyboard connected *directly* to each other (no other gear, no patch
panels, just two midi cables). Also, I would only connect one MIDI patch
at a time to avoid any weird "loops" that others have encountered (i.e.
program change that comes from the keyboard is echoed out of the DTX and
then sent back to the DTX by the MIDI through of the keyboard resulting
in a DTX module MIDI buffer crash, quite spectacular to watch, but not
very useful or musical! :)

Anyway, let us know the results of your investigation and I'll let u know
if I can replicate here if I gety a chance to play :)

Vern
-- 
Vern Graner CNE/CNA/SSE     | "If the network is down, then you're
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Ronald Rael Harvest said:
> --- In DTXpress@yahoogroups.com, "Vernon Graner" <vern@t...> wrote:
>> Ronald:
>>
>> I had a couple of questions b4 I take a stab at answering this:
>>
>> 1. Are the MID file in General MIDI format?
>
> They sure are.  They use the correct instruments when playing on the
> OPL3 in my computer's sound card, and when playing on my Alesis
> QuadraSynth 6.1 with General MIDI mode turned on.
>
>> 2. Are you recording program change data along with the note data?
>
> Well, apparently I'm *not* recording them, and that's precisely what my
> question is.  *Why* am I not recording them?  If you could help me
> figure out where the setting is to make sure they get recorded, you'll
> have solved my problem.  I *do* have the DTX2 set to receive program
> changes in both screens of the utility mode that cover it...  (i.e. the
> screen that says "UT MIDI RECEIVE 10PC=on 10=on" and the screen that
> says "UT MIDI RECEIVE PC=on SySEx=on" are both set to receive program
> changes...)
>
> And yet they aren't being recorded along with the song data.
>
> Are there any other settings that need to be changed that I'm not
> aware of?
>
>> It sounds like after you power-cycle the DTXpress mod, it defaults to
>> GM on Chan 1, Patch 1 (piano).
>
> The particular MIDI sequence I'm sending it doesn't actually use
> channel 1, but it's defaulting to piano on channels 2 through 7, which
> *are* used, and are supposed to be 34, 31, 31, 17, 19 and 64.  So
> you're basically right.
>
> Your suggestion for adding a measure to the sequence that'll send the
> events is a little off base, though.  I'm not sure if you mean that I
> should create this measure on the computer before I send the MIDI file
> to the DTX2 or add it inside the DTX2 once it's already been
> transferred...  If you mean the first, it would be pointless because
> the MIDI file already contains program changes, and those program
> changes *are* being sent.  I know this because the sounds I hear
> through my headphones while they're plugged into the module's
> headphone jack and the recording is taking place correspond to the
> correct instruments.  (i.e. I don't hear all pianos during the
> recording.)  If you mean the second option, it's also a bit pointless,
> as adding this measure would be more work than going through and
> setting the beginning program for each channel of the song manually,
> which is what I'm doing right now.
>
> What I'm looking for is a way to get the module to record the program
> changes which it very obviously is receiving correctly into the song
> area along with the actual notes it receives.
>
> Thanks again for the help you've provided, though, you *do* seem to be
> the person so far who's come closest to understanding what I'm asking.
>
> Ron Harvest
>
>
>
>
>
>
>
>
>
>
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