Digital Delay construction and study material

[papaisou11]

Hi...

This is sourav, new to this forum. I am a hardcore lover of audio electronics, builded my own distortion pedal and compressor for my guitar related setup. But now I want to make a digital delay pedal, but confused about from where to start. I want to learn how digital delay works, what are the circuitry needed. I already builded distortion and eq pedal for my guitar setup. Is there any books avilable to learn this or any documentation for the basic? Any kinds of information is highly appreciated.


Thanks and regards,
SaV



Also I have good knowledge about microcontroller and programming related issues.

 

[chaerin]

I think it's pretty simple to implement if you have a reasonably fast microcontroller (something like input -> lowpass -> ADC -> ring buffer -> DAC -> lowpass -> output at ~40kHz).

Which part is unclear?

 

[Ketje]

Perhaps you can do it more analog, no µC needed.
Have a look here ElectroSmash - Bucket Brigade Devices: MN3007
Mona

 

[Foxx510]

Check out the Spin FV-1 IC.

 

[papaisou11]

I think it's pretty simple to implement if you have a reasonably fast microcontroller (something like input -> lowpass -> ADC -> ring buffer -> DAC -> lowpass -> output at ~40kHz).

Which part is unclear?

Thanks for your reply. Surely check this out.
also I want to learn more about it. I need some kind of documentation for conceptual basic knowledge.
What is your advice, how to start and from where to start?
I am completly confused what is the first thing to do/learn?

 

[papaisou11]

Perhaps you can do it more analog, no µC needed.
Have a look here ElectroSmash - Bucket Brigade Devices: MN3007
Mona

Hi...
thanks. I want to make it digitally as I get maximum control and features by codes and tweaks.

Thanks once again.

 

[papaisou11]

Check out the Spin FV-1 IC.

Thanks... Will chevk and study about it.

 

[chaerin]

Thanks for your reply. Surely check this out.
also I want to learn more about it. I need some kind of documentation for conceptual basic knowledge.
What is your advice, how to start and from where to start?
I am completly confused what is the first thing to do/learn?

https://en.wikipedia.org/wiki/Nyquist–Shannon_sampling_theorem

Conceptually, this one is the basis for digital audio in general.

Have you used ADCs/DACs before? Most of the difficult part is already done by a big IC.

 

[papaisou11]

https://en.wikipedia.org/wiki/Nyquist–Shannon_sampling_theorem

Conceptually, this one is the basis for digital audio in general.

Have you used ADCs/DACs before? Most of the difficult part is already done by a big IC.

Hi...

I used ADC and DAC before but not for Audio purpose. That was something like 10bit ADC.

Thanks once again.

 

[tataylino]

You can Start with a simple delay IC like the PT2399:
Guitar Delay Effects project – tataylino.com

If you want some programming then you may want to try the pedalShield Due which uses the popular Arduino Due.

 

[gingertube]

This maybe of interest:
EPE Magazine October 2015
Cheers,
Ian