Re: [music-dsp] Noise performance of f32 iir filters

2011-10-03 Thread Peter Schoffhauzer
Nigel Redmon wrote: (not to mention ATM--geez how many meanings can that one attain?). thefreedictionary.com lists 106 meanings... http://acronyms.thefreedictionary.com/ATM -- dupswapdrop -- the music-dsp mailing list and website: subscription info, FAQ, source code archive, list archive, book

Re: [music-dsp] Noise performance of f32 iir filters

2011-10-02 Thread Peter Schoffhauzer
Tom Wiltshire wrote: I get DP1 and DP2 (Direct Form 1 and 2, right?) and SVF but what are the other acronyms here? BLT? (Bacon, Lettuce, and Tomato is what comes to mind, but it doesn't seem likely...) TPT? I suppose BLT stands for BiLinear Transform. Peter -- dupswapdrop -- the music-dsp

Re: [music-dsp] Interpolation for SRC, applications and methods

2010-12-21 Thread Peter Schoffhauzer
andy butler wrote: One thing I'm intrigued by is the notion that when downsampling it may be possible to remove the aliasing created by the downsampling itself within the interpolation filter. ( so far, I don't see it's possible) Normally, the signal is lowpass filtered before downsampling.

Re: [music-dsp] Is beating the same thing as flanging?

2010-11-19 Thread Peter Schoffhauzer
Richard Dobson wrote: Well, funnily enough I think the name flangino might fit rather well for that example! Or simply treble flanger. Is this relying on feedback rather than wet+dry? Either way, the fundamental partial (~75HZ) in that example is pretty much unaffected (very clear static

Re: [music-dsp] Is beating the same thing as flanging?

2010-11-19 Thread Peter Schoffhauzer
Alan Wolfe wrote: i fear to post a question being the OP of this huge 100+ message thread but... it was mentioned here and in a previous email that for digital flangers you want to interpolate between samples for best results. Would you want to do this for all sampling digital effects such as