Hey Dan, that's rather bizarre. Let us know if the solution sticks. I have the same issue as I said before, so I am definitely interested. I just figured the OS was written poorly. For me the clicks only occur when midi data is sent to the unit, not if its in "local on" mode. I guess it is possible a midi ground could interact with audio. I am wondering why an OS reset clears the problem for me but not you, and how it is possible for software to create a grounding issue, but I'm glad you are getting a handle on it. 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: Monday, January 15, 2001 12:04 AM Subject: Re: [DTXpress] MIDI transmission causes noise? > Hey everyone, last post on this topic, I found something that is a solution, > albeit something I need to learn more about. And, wanted to send this to > the people who responded and wanted to know what I found (mainly wether or > not my unit was to be determined faulty). > > When I run my Roland KC-500 through a two to three prong adapter, the > ticking disappears. I ran across something similar when I set up my home > theatre system. The Klipsch subwoofer actually came with a three-to-two > prong adapter, indicating it should be used if inexplicable noise appears, > and they recommended getting a ground isolator for my cable line if this > solved the problem. It was the solution there, and it is in fact seeming to > be the solution here. Of course, determining where the ground problem > exists is critical to the safety of my equipment. > > Thanks for the friendly responses! > > -Dan > > -- > Dan Mowczan, pinball@... > > > From: Dan Mowczan <pinball@...> > > Reply-To: DTXpress@egroups.com > > Date: Mon, 15 Jan 2001 00:14:35 -0500 > > To: <DTXpress@egroups.com> > > Subject: Re: [DTXpress] MIDI transmission causes noise? > > > > 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 > >> > > > > > > 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 > > > > > 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 > >
Message
Re: [DTXpress] MIDI transmission causes noise?
2001-01-15 by Rich