Yamaha DTXpress/DTXplorer/DTXtreme

Shoot, no solution.  Even the 'pulse' during non-communication (which I
assume is some sort of watchdog to insure communication exists) pulse right
through and after a reset.  I'm going to call Yamaha tommorrow and get their
thoughts on it.

-Dan

-- 
Dan Mowczan, pinball@...

> From: "Rich" <rich@...>
> Organization: Tweakheadz Audio Lab
> Reply-To: DTXpress@egroups.com
> Date: Sun, 14 Jan 2001 01:41:47 -0600
> To: <DTXpress@egroups.com>
> Subject: Re: [DTXpress] MIDI transmission causes noise?
> 
> Dan,
> 
> 
> I had the same problem.  What i think is going on is that the DTXpress
> internal memory management gets corrupted.  The solution is to reset the
> machine by using the sequence of button pushes detailed in the manual.  You
> will lose all custom patches unless you save them via sysex 1st.  You can
> load them back in after the reset.  They will still work and the pops will
> be gone.
> 
> Best,
> Rich
> Unique Sample CD Roms, Loops and SoundFonts
> Main site:  http://www.tweakheadz.com
> MP3 files:  http://www.mp3.com/tweakheadz
> 
> ----- Original Message -----
> From: "Dan Mowczan" <pinball@...>
> To: <DTXpress@egroups.com>
> Sent: Saturday, January 13, 2001 8:42 PM
> Subject: [DTXpress] MIDI transmission causes noise?
> 
> 
>> I recently purchased a Roland UM-1 USB Midi interface so I could get some
>> communications working with my PC for storing drum kits.  It's a cool
> little
>> interface, and fairly inexpensive ($49 at Edirol's site) if you want a USB
>> type.
>> 
>> Of course, the driver is crashing my Mac.  But, that's another story.
>> 
>> I threw the driver on a PC and started working immediately.  I pulled up a
>> MIDI file of some Piano and it played beautifully, except there was a
>> cackling coming from my amp, kind of a static or popping sound.  At first
> I
>> thought 'Boy, these are some bad GM sounds', but after then downloading
> some
>> kits from DTXpressions to play with, I hit the 'Send' key on DTXchange and
>> during the entire send, the popping was occuring, this time at a much
> faster
>> speed, but only for the two seconds or so required to receive the kit.  It
>> seems that any MIDI data received causes an audio glitch in the outputs.
>> The transmission worked properly, however.
>> 
>> Then, I noticed anytime MIDI was hooked up, there is a slight ticking from
>> my DTXpress brain in the neighborhood of 240-260bpm.  Disconnecting the
>> Roland UM-1 from the MIDI cable, effectively powering it down, stops the
>> ticking.  Shutting down the computer but leaving the cables connected also
>> stops the ticking.  When the windows driver is running, the ticking
> occurs.
>> 
>> Finally, I did a bulk dump of data from the DTXpress brain.  This I can't
>> get to work at all.  The PC doesn't simply doesn't seem to see any data.
>> During this, I get no popping or static through the amp however.
>> 
>> In frustration, I swapped the MIDI cables in and out in case I did
> something
>> wrong, which didn't do a thing, but when they were swapped, I was getting
> a
>> significant ground hum from my Amp that I wasn't before.
>> 
>> Any ideas on what's causing this?  I also can't seem to detect any of this
>> through my headphone jack, but based on the volume output on it, I can't
> say
>> for sure if it is there or not.
>> 
>> -Dan
>> 
>> 
>> 
>> --
>> Dan Mowczan, pinball@...
>> 
>> 
>> eGroups Sponsor
>> 
>> 
>> Community email addresses:
>> Post message: DTXpress@onelist.com
>> Subscribe:    DTXpress-subscribe@onelist.com
>> Unsubscribe:  DTXpress-unsubscribe@onelist.com
>> List owner:   DTXpress-owner@onelist.com
>> 
>> Shortcut URL to this page:
>> http://www.onelist.com/community/DTXpress
>> 
>> 
> 
> 
> Community email addresses:
> Post message: DTXpress@onelist.com
> Subscribe:    DTXpress-subscribe@onelist.com
> Unsubscribe:  DTXpress-unsubscribe@onelist.com
> List owner:   DTXpress-owner@onelist.com
> 
> Shortcut URL to this page:
> http://www.onelist.com/community/DTXpress
>