[sdiy] Using dual BBD chips for higher clock frequency

Mike Bryant mbryant at futurehorizons.com
Fri Jun 17 14:36:51 CEST 2022


Guitarist are the last bastion of religious fundamentalism !

But more and more do use DSP modelling now, especially for live concerts.  There's nothing wrong with wanting a valve sound, but just accept its nothing magical, just a mathematical formula that just as easily can be applied digitally.


-----Original Message-----
From: Scott Young [mailto:thebot at btinternet.com] 
Sent: 17 June 2022 13:32
To: Mike Bryant
Cc: Roman Sowa; synth-diy at synth-diy.org
Subject: Re: [sdiy] Using dual BBD chips for higher clock frequency

Not if you’re a guitarist :-)

> 
> On 17 Jun 2022, at 10:25, Mike Bryant <mbryant at futurehorizons.com> wrote:
> 
> Yes.   But 'advantages' and 'religious beliefs' are two very different things :-)
> 
> 
> -----Original Message-----
> From: Roman Sowa [mailto:modular at go2.pl]
> Sent: 17 June 2022 10:21
> To: Mike Bryant
> Cc: synth-diy at synth-diy.org
> Subject: Re: [sdiy] Using dual BBD chips for higher clock frequency
> 
> I may be wrong, but possibly prefering BBD over ADC-RAM-DAC is the same thing as tube audio amp vs. solid state one.
> Price, performance, ease of use, unobtainable parts - it all does not matter then.
> 
> Roman
> 
> 
> W dniu 2022-06-17 o 11:01, Mike Bryant pisze:
>> BBD is only about 12 bits accuracy at best, and there's plenty of cheap ADC/DACs that can run 12 bits at many megahertz.    Pair one of these with a cheap ARM processor with lots of memory.
>> 
>> -----Original Message-----
>> From: Synth-diy [mailto:synth-diy-bounces at synth-diy.org] On Behalf Of 
>> Jay Schwichtenberg via Synth-diy
>> Sent: 17 June 2022 02:02
>> To: synth-diy at synth-diy.org
>> Subject: Re: [sdiy] Using dual BBD chips for higher clock frequency
>> 
>> Isn't one of the advantages of using a BBD over a digital solution is the clocking can go to 500 KHz to 1MHz?
>> 
>> So depending on the clock freq you can get the aliasing filters higher up and have better freq range.
>> 
>> Jay S.
>> 
>> 
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> 
> 
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