Vintage Simmons Drums (UK) Users Group

Thanks - the big lesson on proms and memory... makes me love my SDS-V with 
HH and cymbal cards even more. ;)

electronically yours, jesper
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www.electronic-obsession.se

----- Original Message ----- 
From: <michael.buchner@...>
To: <Simmons_Drums@yahoogroups.com>
Sent: Monday, February 27, 2006 1:54 AM
Subject: Re: [Simmons Drums] Question on certain a Simmons sound


> Small information ;-):
> It's true, that all these factories use the same Eproms- like you use the
> same memory cards for your digital camera, mp3-player or whatever. But- 
> only
> the chips. The sounds, the sampling rate, size and even the format were
> different, f. e. it's not possible to play back Linn 9000 Proms on any
> Simmons unit, the format has to be changed with an oberheim prommer. Linn
> and Oberheim packed their large sounds like Cymbals in up to 8 Proms 2732,
> because that was cheaper than one big chip. Simmons never "stole" sounds 
> by
> copying from other machines.
> Eproms used by the simmons product range are: 2732 (only on SDSV digital 
> HH
> and Cymbal), 2764 (SDS7,SDS9,SDS1), 27128 (SDS7, SDS9, SDS1) and 27256 
> (SDS7
> Cymbal and HH). The SDS1000 Eprom contains all 4 snare sounds in a row and
> is a 27256, sometimes a 27512 with no audible difference, only the first
> half is playbacked.
> The SDS5 digital Cymbal and Hihat read out their eproms with a
> forward/backward counter permanently to create a loop. So the sound can be
> as long as the decay control allowes. But the sample itself was only a 
> small
> portion of a metallic hiss (decay of a cymbal, no attack), so it doesn't
> made any sense to convert it for another machine. There never was a 
> library
> for SDSV Cym and HH sounds, and they were never in the SDS7's library (too
> short). A fully equipped SDS5 at its best is recorded on "White Horse" by
> Laid Back. The Cym can be heared with nice sweep f. e. on Stevie Wonder's 
> "I
> just called to say I love you".
> All other SDS read out one-shot. All Simmons original eproms have a 
> sampling
> frequency around 32khz and have a bandwith of 8 bit. The format is linear.
> For SDS7 I made a little modification on some cards to playback 27512 
> Eproms
> containing large cymbals and timpanies.
> The old harsh 8bit cymbal sounds are easy to get even without the old
> equipment - on pc or mac: Grab a normal 16bit cymbal sample, compress it
> very hard and transform it down to 8bit mono with low sampling rate. This
> can be done easily by f. e. Steinberg Wavelab. Then convert it back to 
> 16bit
> stereo,44.1khz and use it in a software of your choice.
> Have fun
> Michael
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