librosa load with float offset value and float duration

[Ishwara Bhat A]

Hi,

I'm trying to load a .WAV file with offset as float value (ex: 1.6 seconds) and duration also being float value.

X, sample_rate = librosa.load(audioFile, res_type='kaiser_fast',offset = start_time, duration=duration_seconds,sr=22050*2)

It (correctly?) fails at 

# Construct the stream if offset: start = int(offset * sr) else: start = 0 if duration: frames = int(duration * sr)

in

https://librosa.github.io/librosa/_modules/librosa/core/audio.html

But as per documentation I can use float value for both. I'm using python 3. 

Please confirm if I can use float offset and duration while loading WAV file.

Thanks

Ishwar

[Vincent Lostanlen]

Dear Ishwara,

No issue on my end with:

ogg_path = librosa.util.example_audio_file()
librosa.load(ogg_path, res_type="kaiser_fast", offset=1.5, duration=4.5, sr=44100)

Perhaps you have chosen an offset that exceeds the duration of the input file?

Sincerely,

Vincent.

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[Brian McFee]

The code here is correct.  Offsets and durations are specified in units of seconds, which may be fractional (floating-point).  For slicing on load, these numbers are converted to sample indices, which must be integer-valued.

[Ishwara Bhat A]

Thanks a lot.

My issue was that the float value I passed was actually a string "3.33", not 3.33. This came from REST service and I simply overlooked. My bad. The hint helped!

Thanks 

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Thanks and Regards,

Ishwara Bhat

Co-Founder & CTO

IKnowItMOM Private Limited,

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