This message has been edited for brevity.
Date: Mon, 28 Oct 1996 04:04:19 +0000 (GMT) From: Ben Hall <cb170@city.ac.uk> X-Sender: cb170@swindon To: WaveStation List <wavestation@cloudfactory.org> Subject: Re: [WS] Re: WS A/D outs Message-ID: <Pine.GSO.3.94.961028040214.25328B-100000@swindon> MIME-Version: 1.0 Sender: Owner-Wavestation@cloudfactory.org Precedence: bulk Reply-To: wavestation@cloudfactory.org Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit
Khew wrote:
>> If you want a more detailed explanation then I'll have a go...
>Please do,i need it! :-)
Um, I was hoping you weren't going to say that :)
Okay, this might get a bit complex, sorry for that. Because this is quite involved, I've split it into several parts.
The effects section is the key to all the effects/output routing, and there are a number of ways to route different things in different ways.
The FX section has 4 inputs ("busses"), named A, B, C and D. The sound generating parts of the WS arrive at one or more of these busses before going through the FX processors and on to the outputs.
The FX section has four outputs, named "1", "2", "3" and "4", and these directly correspond to the four output jacks on the rear of the WS. How sounds are routed from the input busses to the outputs are determined by the effects configurations.
Note: For the time being I will ignore the FX MIX parameters (more on those later).
Now, the two FX processors (FX1 and FX2) can be configured in SERIES or PARALLEL modes of operation:
In series, FX busses A and B are routed into FX1 (bus A is the left input, bus B the right input, as normal stereo operation). Then the L/R stereo output of FX1 is fed into FX2, with the output of that going onto the main stereo outputs (outputs 1 and 2).
This mode lets you have for example FX1 providing reverb, with FX2 providing chorus on top of that (in other words, the two FX processors are acting as one big combined effect).
A diagram helps visualise this (better ones are in the manual and displayed graphically on non-SR Waves):
WS Sound Generator | | |----> FX BUS A ---> FX1 (left) ----> FX2 (left) ------> Output 1 |----> FX BUS B ---> FX1 (right) ---> FX2 (right) -----> Output 2 | |----> FX BUS C ---------------------------------------> Output 3 -----> FX BUS D ---------------------------------------> Output 4
(Remember that I'm temporarily ignoring the FX mix parameters for now, and thus have removed them from the diagrams).
In series mode, because busses A and B go through the effects, busses C and D go directly to outputs 3 and 4. This is a handy mode to have because you can have one sound going through the FX units and emerging at the main outs, with another seperate sound going to buss C and D and hence emerging at outputs 3 and 4.
In practical terms then, you can have a multi setup that sends one patch through the two effects units (as per POLY mode), and another that goes to the other two outputs to be processed by an external FX unit (I'll describe how to set up all these things later).
With the effects in parallel mode, FX busses A and B go through FX1 and on to outputs 1 and 2. FX busses C and D go through FX2 and on to outputs 3 and 4.
WS Sound Generator | | |------> FX BUS A -----> FX1 (left) -----------> Output 1 (left) |------> FX BUS B -----> FX1 (right) ----------> Output 2 (right) | |------> FX BUS C -----> FX2 (left) -----------> Output 3 (left) -------> FX BUS D -----> FX2 (right) ----------> Output 4 (right)
This means you have two independent processors. One could be providing reverb for one sound, with the other providing echoes for a different sound.
So how can we determine which sounds go to which FX busses? What do those elusive FX mix parameters do? And why is routing existing sounds to different outputs "non-trivial"?
All this, (and more!) will be answered in part two. Stay tooned...
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