Re: [prophet2000]random white noise
2002-02-04 by ferrograph@aol.com
<< Different keys for different sounds. Does not matter which key it is.I found if I keep taping a key untill I get the "white Noise", I keep that key depressed and it plays normally. So it has something to do with the voice allacation as you say. I can press the "stack-on-off" switch and this sort of masks it, but you can still hear it. Funny: the Internal sounds are unaffected, those work fine.So its not the chip ( Whew!)Must be a parameter setting.>> don't panic yet. does it do this whatever disc you load? it could still be corrupted samples.... the internal waveforms are also in the sample memory, and I think they use it all, so it's probably not that. the internal sounds (all 16? if you leave "sound number" selected on the matrix, you'll see the numbers scrolling through as you play) sound ok wherever you play them, so the voice paths are ok..... (did you try them 8 notes at once?) then it must be the disc, or possibly the drive or the driver circuit. the stack thing is a sort of variable unison; the number of voices each note takes up can be preset and over-ridden by a master setting, I recall. there's a lot of "execute" to switch things on and off aswell as the data entry buttons and knob; until you know this the machine appears impenetrable. How so I turn the dynamic allocation off?? (untill I get the manual.) >> there's an example. you select "dynamic allocation" on the matrix and it either says on or off, which you change with the inc/dec buttons. this'll do strange things if you have it plugged up in stereo and there's a sound loaded that uses samples in both halves; this is common on the "bigger" instruments on the factory discs I've got or seen, where they've designed it to work in machines with normal or expanded memories- the "normal" users lose a few notes at either end. but I digress. to see if it's the sample as loaded that's the problem, select "sound number" on the matrix and press execute so the decimal point comes on. now the keyboard only plays that sound. you can check the whole lot this way, but it's also a useful trick to discover the useful (transposable) range of a sample. I think you have to press execute again before it lets you change the sound number. this'll tell you if the discs you have were near a magnet or something. when you've seen the manual, you'll be able to load the sounds one at a time and maybe do some repairs. I got both of mine over ten years ago and the factory discs were often like that even then. if the machine checks out ok, you'll have a great time making your own anyway. what s/ware version is it? it'll be written on a prom inside somewhere near the middle, possibly obscured by the keyboard in the 2000. I can't remember. I'm reading the manual for the first time in maybe nine years and it's all coming back to me..... duncan/r.m.i.