Sound quality is bad by running the "quick start" example code

HidekiKawahara / legacy_STRAIGHT

A vocoder framework which had been widely used in research community since 1999.

Apache License 2.0

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Sound quality is bad by running the "quick start" example code #2

Closed fxw915 closed 5 years ago

fxw915 commented 5 years ago

Hi all, I ran the command line code in the quick start example on MATLAB R2018b. And the synthesized sound quality is really poor, filled with loud noise. Since I didn't modify the source code and the wav file, I am wondering if it is the issue with the MATLAB version or some bugs need to be fixed in source code.

HidekiKawahara commented 5 years ago

Thank you for your feedback. That is because the magnitude of the synthesized signal has a huge amplitude. max(abs(syntheszed_signal)) ans =

2.1297e+04

Please try to save the signal as follows. audiowrite('testSyn.wav', syntheszed_signal / max(abs(syntheszed_signal)) * 0.8, fs); I tested on Mac and Windows and found the synthesized signal sounds reasonable. Please find the generated file. Thank you again.

testSyn.wav.zip

fxw915 commented 5 years ago

@HidekiKawahara Thanks a lot! That solves the problem!