Single Speaker Recording Issue

[rpx91]

Trying out the single speaker method for a very near field (arms length) measurement but getting the following error:

(venv) c:\Users\dushy\Impulcifer>python impulcifer.py --test_signal="data/sweep-6.15s-48000Hz-32bit-2.93Hz-24000Hz.pkl" --dir_path="data/my_hrir" --channel_balance=trend
Traceback (most recent call last):
  File "impulcifer.py", line 492, in <module>
    main(**create_cli())
  File "impulcifer.py", line 74, in main
    write_readme(os.path.join(dir_path, 'README.md'), hrir, fs)
  File "impulcifer.py", line 440, in write_readme
    f'{ir.reverberation_time(target_level=-60) * 1000:.1f} ms'
TypeError: unsupported operand type(s) for *: 'NoneType' and 'int'

I've uploaded my speaker and headphone recording here.

[jaakkopasanen]

Thanks. I'll investigate. Some the algorithms are quite simple and might not be able to handle all edge cases. Reverberation time calculation is probably one.

[rpx91]

I re-did the recordings - I had a hunch they were too low and I left too much headroom. When I recorded louder it processes fine.

[jaakkopasanen]

This is solved now. The noise floor in these recordings is above -60dB on some speaker-ear pairs so the -60dB level for RT60 was never reached. There was a bug too in my code which caused a crash in some cases. Now the RT60 in README.md says "-" when -60dB cannot be reached and does not throw an error anymore.