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Re: [xl7] Re: HELP: FX RAM failed error

2010-03-17 by Aaron Eppolito

There's two different choruses - one that's done at the voice level (by detuning an additional voice - which is why it eats polyphony) and one that's done at the effect level (by using the tank RAM as Jack mentions).

The FX RAM will mess with pretty much any signal coming through the box.  The G05 chip uses this memory for just about everything.  It may even use it for routing signals.  Did you try the subs?  I would imagine that even though they're dry, they might still be affected by the bad RAM.  Also note that it might be the interface to RAM that's suspect, not just the chip itself.  You could go physically pushing chips on the board to see if you hear anything change.  It's actually kinda fun to debug audio circuits...

-Aaron


----- Original Message ----
From: Jack Pratt <woodsworth1@...>
To: xl7@yahoogroups.com
Sent: Tue, March 16, 2010 3:36:28 PM
Subject: Re: [xl7] Re: HELP: FX RAM failed error



It depends on the implementation as to how the 'frequency blurring' of the chorus is done (and there are a wide variety of choruses - a simple delay line can give a chorus of sorts). That may or may not involve the pipeline, but something like a reverb certainly does (this is just 'frequency blurring' with a low pass filter). Since I don't have any information on the 'IC405' part from EMU I'm just indicating the type of effect that may be subject to pipeline...


________________________________
From: massimo <massenmedium@...>
To: xl7@yahoogroups.com
Sent: Wed, March 17, 2010 6:22:19 AM
Subject: Re: [xl7] Re: HELP: FX RAM failed error

  
Just an aside but isn't the chorus done with doubling and detuning?


      


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