Load audio from google storage using google colab (Python)

Question

i save my audio file in google storage in wav format, but when i try to load the audio using google colab, i not manage to done it.

below the example i used to load audio from google storage.

import numpy as np
import IPython.display as ipd
import librosa
import soundfile as sf
import io
from google.cloud import storage
import os

from google.colab import auth
auth.authenticate_user()


os.environ["GCLOUD_PROJECT"] = "fundpro" #project_id
BUCKET = 'parli-2020' #bucket_name
gcs = storage.Client()
bucket = gcs.get_bucket(BUCKET)
import speech_recognition as sr

for blob in bucket.list_blobs(prefix='speech/Transcribe'):

    filename = 'gs://parli-2020/' + blob.name
    X, sample_rate = librosa.core.load(filename)

but the error: filename cannot be found.[Errno 2] No such file or directory

my question : how to load audio from Google Storage/ how to read audio from google storage

Answer 1

Librosa uses the native python io implementation which doesn't support Google filesystem. You can use tensorflow's GFile implementation.

Something like this,

import numpy as np
import IPython.display as ipd
import librosa
import soundfile as sf
import io
from google.cloud import storage
import os
import tensorflow.io.gfile as gf

from google.colab import auth
auth.authenticate_user()

os.environ["GCLOUD_PROJECT"] = "fundpro" #project_id
BUCKET = 'parli-2020' #bucket_name
gcs = storage.Client()
bucket = gcs.get_bucket(BUCKET)
import speech_recognition as sr

for blob in bucket.list_blobs(prefix='speech/Transcribe'):
    filename = 'gs://parli-2020/' + blob.name
    with gf.GFile(filename, 'rb') as fp:
        X, sample_rate = librosa.core.load(fp)