how to use thdcalculator.py?

[peterpain1216]

when i entered
:python3 thdcalculator.py mytestfile.wav, nothing happened.

then i use:
python3 thd_analyzer_launcher.py mytestfile.wav, i got this error:

Exception:
name 'analyze_channels' is not defined

sorry for being a noob, how to use the scripts properly? thanks

[peterpain1216]

python3 wave_analyzer_launcher.py mytestfile.wav

this script works fine for me.

[endolith]

Yeah it appears to not be finished, sorry. I'm not sure why I pushed it that way. For now you can load the WAV into an array and process it with THDN() https://github.com/endolith/waveform_analysis/blob/master/waveform_analysis/thd.py#L44 and it will return the ratio.

[endolith]

Or just use the old version: https://gist.github.com/endolith/246092

That works as you would expect:

λ python thdncalculator.py  "THD 75 harmonic -60 dB.wav"
Analyzing "THD 75 harmonic -60 dB.wav"...
Frequency: 40.000000 Hz
THD+N:     0.1109% or -59.1 dB