[sdiy] 20ms delay? analog allpass filter?

[Mattias Rickardsson]

Hi!
20 ms is a lot. See the old broadcast equipment EMT 266 Transient Limiter
for example, which has an analog delay of 0.3 ms, corresponding to 14
samples in 48 kHz digital audio, or 10 cm of sound travelling through air.

https://postimg.cc/Fk0pd2Yx

So you'll likely need a BBD or something digital, I'm afraid.

/mr




Den tis 7 feb. 2023 04:19Neil Harper via Synth-diy <synth-diy at synth-diy.org>
skrev:

> hey everyone,
> I've been messing around with some digital stuff, where it's really easy
> to make delays to do accurate karplus-strong type sounds for example.
>
> Anyways, it got me wondering if there's any analog equivalent? Let's say
> I want a 20ms delay, is that in the realm of requiring a dedicated IC to
> do the delay, or is that possible with bog standard electronic parts
> like opamps and capacitors? 2
>
>
>
> --
> /// Neil Harper
> /// Every Wave is New Until it Breaks
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