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Add float32 type casting for get_samples function #5399

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merged 6 commits into from
Nov 22, 2022
Merged

Add float32 type casting for get_samples function #5399

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ae03740
Add float32 type casting for get_samples function
tango4j Nov 12, 2022
230fb71
Merge branch 'NVIDIA:main' into get_samples_fix
tango4j Nov 17, 2022
15f3e0e
Simplified the function and made dtype as default args
tango4j Nov 18, 2022
0e97207
Merge branch 'get_samples_fix' of https://github.com/tango4j/NeMo int…
tango4j Nov 18, 2022
76cc78f
[pre-commit.ci] auto fixes from pre-commit.com hooks
pre-commit-ci[bot] Nov 18, 2022
aa9956b
Merge branch 'main' into get_samples_fix
VahidooX Nov 18, 2022
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10 changes: 4 additions & 6 deletions nemo/collections/asr/parts/utils/audio_utils.py
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Original file line number Diff line number Diff line change
Expand Up @@ -26,7 +26,7 @@
ChannelSelectorType = Union[int, Iterable[int], str]


def get_samples(audio_file: str, target_sr: int = 16000):
def get_samples(audio_file: str, target_sr: int = 16000, dtype: str = 'float32'):
"""
Read the samples from the given audio_file path. If not specified, the input audio file is automatically
resampled to 16kHz.
Expand All @@ -41,12 +41,10 @@ def get_samples(audio_file: str, target_sr: int = 16000):
Time-series sample data from the given audio file
"""
with sf.SoundFile(audio_file, 'r') as f:
sample_rate = f.samplerate
samples = f.read()
if sample_rate != target_sr:
samples = librosa.core.resample(samples, orig_sr=sample_rate, target_sr=target_sr)
samples = f.read(dtype=dtype)
if f.samplerate != target_sr:
samples = librosa.core.resample(samples, orig_sr=f.samplerate, target_sr=target_sr)
samples = samples.transpose()
del f
return samples


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