AS All-Pass Reverb

Created on 6 July 2026. Built it in Bitwig Studio v4.0. See notes below. Enjoy! 

Here is a wee experiment into creating manipulatable smooth and smeary reverbs. Polarity has made several very good tutorials on how to do this and there are many different ways that these networks can be constructed. This is a vanilla reverb that is an answer to makiing a modular element that I can use in the Bitwig Grid. I've added this into the Seal Eggs Nautical Delay preset and it rounds out the Fog component very nicely. There may be times that you just want to slap some reverb on your track and here is my answer to this. There's Peak Limiter added into the Pre-FX slot so the signal should not get too hot. 

At full size and mix the reverb has a tail of nearly 30 seconds to full silence, but has 20 seconds of useable tail time. I based my delay network structure times from Polarity's calculator, but used 6 different lengthed networks in series, and combined these results toghether. My time distrubutions were influenced by the calculator, but I used Primes for all the values (the final maximum of 999 is an obvious exception). The correspond to milliseconds when the reverb size is set to maximum.

Below is a screenshot of the delay times and I have roughly considered each row as expansions on the Polarity calculator. What I have built is something that sounds good to my ears, but is by no means definitave, or possibly even without some fundamental flaws. I just liked how it sounded.

Warning: can produce frequencies and volumes which may damage hearing, audio gear and speaker coils. Be kind to your ears and gear.

AS All-Pass 6x6 (Bitwig v4.0+ FX Grid Preset) 

Suggested usage:

1. Start with the preset as shown above.

2. Experiment!

I'll write more as I work with and improve this preset. Goes great with my Shermanik Filterbank or Seal Eggs presets in the device chain.

Warning: can produce frequencies and volumes which may damage hearing, audio gear and speaker coils. Be kind to your ears and gear.

If you'd like to 'buy me a coffee' for my efforts, you can send it via PayPal to chris@ambientspace.com Thanks!

Please email me at chris@ambientspace.com if you have any questions or find that this is doing something unexpected.