Re: long FIR filters
Re: long FIR filters
- Subject: Re: long FIR filters
- From: email@hidden
- Date: Fri, 2 Feb 2007 17:48:56 -0000 (GMT)
- Importance: Normal
> Unfortunately this technique has been patented (#6625629)
>
> http://www.google.com/patents?vid=USPAT6625629&id=GgAPAAAAEBAJ&dq=Efficient+Convolution+without+Input-Output+Delay
>
Only for low-latency partitioned convolution with unequal partition sizes
(and even that is a bit moot). The plain partitioned convolution (which
can still give usefully low latency) is ad lib (see "BruteFIR" for one
example, "pconvolve" opcode in Csound for another).
Richard Dobson
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