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echo66 / PhaseVocoderJS

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DSP.js FFT issues #3

Closed echo66 closed 9 years ago

echo66 commented 9 years ago

It seems that the error between MATLAB STFT and DSP.js Windowing + FFT is higher than it should. There are indexes that change phase signs.

echo66 commented 9 years ago

Examples:

\ Issue at index 971 at frame 22 ** my value: -0.1943424508 test value: 0.0028793388046324253 WRONG SIGN

\ Issue at index 979 at frame 22 ** my value: 3.101530522 test value: -3.1335537433624268 WRONG SIGN

\ Issue at index 1009 at frame 23 ** my value: 3.079066476 test value: -3.1021502017974854 WRONG SIGN

echo66 commented 9 years ago

Just open an issue in dsp.js repository and close this issue.

j-funk commented 7 years ago

@echo66 is this with the main FFT algorithm in dsp,js, or with the RFFT algorithm?