Displaying 2 results from an estimated 2 matches for "fft160".
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fat16
2008 May 29
2
FFT Resampler
...e-05 9.20e-01 9.71e-01
Filt Q4: 1.96e-05
Filt Q5: 9.61e-06
FFT+0: 3.83e-02 1.91e-01 7.06e-01 (And you can clearly hear this)
FFT+16: 8.10e-03 6.18e-02 6.60e-01 (violates the resampler requirements
and shifts frequencies slightly)
FFT+160: 1.14e-05 3.75e-03 6.39e-01 (shortest allowed overlap)
So, FFT160 is somewhere between Q4 and Q5. And it's 6 times faster than Q4.
Testing with twice the block and overlap length:
FFT 640/320: 1.13e-05 3.49e-03 6.38e-01
erm. Hm. Need more testing on that one, I think.
Moving to 16=>48, let's examine different block and overlap lengths:
160+16: 1.20e-0...
2008 May 29
2
FFT Resampler
>> Yes, I plan to use it in a VoIP environment if I can get latency reduced to
>> an acceptable level :)
>> The latency depends directly on the overlap parameter, which also controls
>> the quality. Higher quality => higher latency. You could set the overlap to
>> 0, but that would give you some nasty artifacts.
>> You can also resample with smaller block