[sdiy] TR-808 Cymbal Was: TR-808 Kick Drum modelling explanation

nvawter nvawter at media.mit.edu
Fri Jul 10 17:26:44 CEST 2015


Thank you.pcx!

I think that was it!  fascinating how my web searches couldn't find it, 
but probably because of the classic practice of using gifs as headlines 
:)  ah the good old days... R at F's page even links to his old mp3.com 
page!  Man, I loved mp3.com back in the day...

Anyway, thanks everyone for your links to how the drum machines 
synthesize, I added them to
http://www.diydsp.com/index.php?title=Analog_Drum_Synthesis

-Noah


p.s.
> I've even used MS-Excel to test some VA algorithms before.

Confirming Excel for DSP/synthesis experiments.  Two more things people 
might like for realtime synthesis experiments are:

http://www.iquilezles.org/apps/soundtoy/index.html
-and-
http://wavepot.com






On 2015-07-09 18:01, Richie Burnett wrote:
> This maybe...?
> 
> http://hardware.freepage.de/raf909/
> 
> -Richie,
> 
> ---- nvawter wrote ----
> 
>> These are all so great!
>> 
>> If anyone has more, I'll add them to my wiki:
>> http://www.diydsp.com/index.php?title=Analog_Drum_Synthesis
>> 
>> 
>> I once read a terrific one on the TR-909 Kick drum, but I just can't
>> find it anymore, after looking every few years and just now.  Any 
>> leads?
>> 
>> 
>> 
>> -Noah
>> 
>> 
>> 
>> On 2015-07-08 23:32, saure wrote:
>>> You should also find this interesting to read
>>> 
>>> http://icmc14-smc14.net/images/proceedings/OS24-B10-TheTR-808Cymbal.pdf
>>> 
>>> -----Original Message-----
>>> From: synth-diy-bounces at dropmix.xs4all.nl
>>> [mailto:synth-diy-bounces at dropmix.xs4all.nl] On Behalf Of Richie
>>> Burnett
>>> Sent: quarta-feira, 8 de Julho de 2015 12:13
>>> To: Bruno Afonso; synth-diy
>>> Subject: Re: [sdiy] TR-808 Kick Drum modelling explanation
>>> 
>>> I'm not sure about the links.  However, it's not difficult to program
>>> these
>>> sorts of algorithms in C, Visual Basic, or whatever, if you just want
>>> to
>>> synthesise sounds "offline".  i.e. Writing them out to a WAV or AIFF
>>> file to
>>> 
>>> be played later.  I've even used MS-Excel to test some VA algorithms
>>> before.
>>> 
>>> Real-time synthesis requires a bit more effort though.
>>> 
>>> -Richie,
>>> 
>>> 
>>> -----Original Message-----
>>> From: Bruno Afonso
>>> Sent: Tuesday, July 07, 2015 10:52 PM
>>> To: Richie Burnett ; Colin f ; synth-diy
>>> Subject: Re: [sdiy] TR-808 Kick Drum modelling explanation
>>> 
>>> 
>>> Just catching up to this. Very interesting reading. I was excited to
>>> play
>>> with the gen~ model but it does not appear to be public. Did I look 
>>> in
>>> the
>>> wrong place? One of the links in the paper is broken, when they 
>>> mention
>>> additional sound samples.
>>> 
>>> 
>>> On Wed, Jun 17, 2015 at 9:48 AM Richie Burnett
>>> <rburnett at richieburnett.co.uk> wrote:
>>>> Here's a 606 bass drum having its trigger pulse swept from about 
>>>> 0.2ms
>>>> to
>>>> around 6ms.
>>>> http://www.colinfraser.com/606-trigger-sweep.mp3
>>> 
>>> Thanks for the MP3 Colin.  It's interesting how the filters in the
>>> 606BD
>>> circuit start clipping against the supply rails when the trigger 
>>> pulse
>>> width
>>> ventures much above 1ms.
>>> 
>>> I guess they designed the filters to max out their dynamic range with
>>> the
>>> intended 1ms wide trigger, and they can't cope with the increased
>>> energy in
>>> wider pulses without clipping.
>>> 
>>> -Richie,
>>> 
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