Forums > MaxMSP

Alpass0 [allpass-monster?]

January 28, 2011 | 8:53 pm

For learning purposes i’ve tried to recreate the allpass-filter according to the formula given in the helpfile. It seemed do-able (to me). I think the calculations/objects and routing are ok? but it actually sounds a lot more extreme, like the allpass would be on steroids. Maybe someone knows whats up?

Thanks, and have fun!

FRid

Whatever it is or does different it sounds cool though…

– Pasted Max Patch, click to expand. –

January 28, 2011 | 9:31 pm

Glad to see someone taking the same ‘learning’ route as I do – make patches that do what Max objects already do. I put together a long tutorial video on comb-filters, allpass filters and reverbs, based entirely on Curtis Roads’ chapter on filters (Computer Music Tutorial):

http://www.youtube.com/watch?v=trF2XfR7cNg

Brendan


February 28, 2011 | 3:50 pm

Hey Brendan,

Thanks for the link, that surely clarified some things up for me. For some reason i always thought the filters were working in the frequency-domain (Pfft hasn’t really been nice to me so far). So when i came across the "rzero-filter" a couple of weeks ago i was proven otherwise and i gave it a go :)

FRid

Btw. love your granulation-video

(sorry i didn’t respond earlier but i had some isp-"issues" that are thankfully over with)


February 28, 2011 | 8:11 pm

Hi FRid
thanks for the kind comments, but….
….take both videos (reverb and granulation) with a pinch of salt – they were put together as a personal learning exercise and consequently feature one or two glaring omissions, for example, there is no mention of the tapin/out sigvs limitation (avoid delay times smaller than the MSP vector size); and the granulation algorithm i’ve been working on is now vastly improved, featuring two overlapping grain windows and minimal amplitude modulation artefacts, but in fact adds nothing new to the algorithm/processes established by Nathan Wolek in his granulator……..but it is IMHO, arguably, better than the bundled Max granulator

Brendan


February 28, 2011 | 11:40 pm

Yeah, well nonetheless it brought me some new insights. Haven’t read up on Curtis Roads yet but i will soon when i find the time (and energy), i remember wading endlessly through those good old max4 pdf’s. I can’t seem to get used to screen-reading large texts. I have a feeling it’s the same serious reading. But i’m looking forward to seeing some new granulator stuff then!

FRid


February 28, 2011 | 11:51 pm

Hi FRid
re the Curtis Roads: most would agree it is utterly indispensible – and an excellent read too. I’ll post a new gran vid soon

Best
Brendan


Viewing 6 posts - 1 through 6 (of 6 total)