[sdiy] Roland CR-8000 drum voices

[Richie Burnett]

I like the quirky high-conga sound of the CR-8000 too, because it's quite 
different to that of other Roland analogue drum machines. Even if it does 
sound like someone tapping a yoghurt pot with a pen!

-Richie,

-----Original Message----- 
From: Adam Inglis
Sent: Wednesday, June 07, 2017 10:57 PM
To: Richie Burnett
Cc: SDIY List
Subject: Re: [sdiy] Roland CR-8000 drum voices


> On 6 Jun 2017, at 11:10 PM, Richie Burnett <rburnett at richieburnett.co.uk> 
> wrote:
> I remember discussions about one of the snare drum body partials sounding 
> so quietly that it was almost inaudible too.
>


Ah! I had forgotten about that. This was over two years ago (obviously a few 
things got in the way of completing this project!).
I think I must have made some audio probe recordings at different parts of 
the circuit. I think the snare is made up of two bridged-T oscillators plus 
some noise, but one of those oscillators is mixed so low you would hardly 
know it was there. I don’t recall there being a trim pot on this part of the 
circuit so Roland’s engineers must have had their reasons for putting it 
there...



AI

>
>
> -----Original Message----- From: Adam Inglis
> Sent: Tuesday, June 06, 2017 6:50 AM
> To: SDIY List
> Subject: [sdiy] Roland CR-8000 drum voices
>
> Up on my blog is a little look at this thing. The quirks of the voices 
> were revealed once I had installed an Elby midi-to-trgger unit, that 
> allows midi velocity to control trigger amplitude. There are some 
> schematic snippets and audio examples. I must thank Richie Burnett of this 
> list for taking the time to explain the genius behind some of these 
> circuits - maximum effect with minimum parts!
>
> Corrections of course welcome
>
> AI
>
> http://mezzoauto.blogspot.com.au
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