Features Error

[nishant2019]

While working on on commands :-

config_trim.silence_padding = 100
audio_trim=AudioList.from_folder(data_folder, config=config_trim).split_by_rand_pct(.2, seed=4).label_from_re(label_pattern)

I get the error

ParameterError Traceback (most recent call last)
in
1 config_trim.silence_padding = 100
----> 2 audio_trim=AudioList.from_folder(data_folder, config=config_trim).split_by_rand_pct(.2, seed=4).label_from_re(label_pattern)

~/anaconda3/lib/python3.8/site-packages/fastai/data_block.py in _inner(*args, **kwargs)
482 self.valid = fv(*args, from_item_lists=True, **kwargs)
483 self.class = LabelLists
--> 484 self.process()
485 return self
486 return _inner

~/anaconda3/lib/python3.8/site-packages/fastai/data_block.py in process(self)
536 "Process the inner datasets."
537 xp,yp = self.get_processors()
--> 538 for ds,n in zip(self.lists, ['train','valid','test']): ds.process(xp, yp, name=n)
539 #progress_bar clear the outputs so in some case warnings issued during processing disappear.
540 for ds in self.lists:

~/Desktop/project_radar/fastai_audio/audio/data.py in process(self, *args, **kwargs)
280
281 def process(self, *args, **kwargs):
--> 282 self._pre_process()
283 super().process(*args, **kwargs)
284 self.x.config._processed = True

~/Desktop/project_radar/fastai_audio/audio/data.py in _pre_process(self)
265 if x.config.remove_silence:
266 print("Preprocessing: Removing Silence")
--> 267 items = [remove_silence(i, x.config, x.path) for i in progress_bar(items)]
268 items = reduce(concat, items, np.empty((0, 2)))
269

~/Desktop/project_radar/fastai_audio/audio/data.py in (.0)
265 if x.config.remove_silence:
266 print("Preprocessing: Removing Silence")
--> 267 items = [remove_silence(i, x.config, x.path) for i in progress_bar(items)]
268 items = reduce(concat, items, np.empty((0, 2)))
269

~/Desktop/project_radar/fastai_audio/audio/data.py in remove_silence(item, config, path)
182 if not files:
183 sig, sr = torchaudio.load(item_path)
--> 184 sigs = tfm_remove_silence(sig, sr, remove_type, st, sp)
185 files = make_cache(sigs, sr, config, cache_prefix, item_path, [st, sp])
186 _record_cache_contents(config, files)

~/Desktop/project_radar/fastai_audio/audio/transform.py in tfm_remove_silence(signal, rate, remove_type, threshold, pad_ms)
176 padding = int(pad_ms/1000*rate)
177 if(padding > actual.shape[-1]): return [actual]
--> 178 splits = split(actual.numpy(), top_db=threshold, hop_length=padding)
179 if remove_type == "split":
180 return [actual[:,(max(a-padding,0)):(min(b+padding,actual.shape[-1]))] for (a, b) in _merge_splits(splits, padding)]

~/anaconda3/lib/python3.8/site-packages/librosa/effects.py in split(y, top_db, ref, frame_length, hop_length)
547 """
548
--> 549 non_silent = _signal_to_frame_nonsilent(
550 y, frame_length=frame_length, hop_length=hop_length, ref=ref, top_db=top_db
551 )

~/anaconda3/lib/python3.8/site-packages/librosa/effects.py in _signal_to_frame_nonsilent(y, frame_length, hop_length, top_db, ref)
443 """
444 # Convert to mono
--> 445 y_mono = core.to_mono(y)
446
447 # Compute the MSE for the signal

~/anaconda3/lib/python3.8/site-packages/librosa/core/audio.py in to_mono(y)
449
450 # Validate the buffer. Stereo is ok here.
--> 451 util.valid_audio(y, mono=False)
452
453 if y.ndim > 1:

~/anaconda3/lib/python3.8/site-packages/librosa/util/utils.py in valid_audio(y, mono)
303
304 elif y.ndim == 2 and y.shape[0] < 2:
--> 305 raise ParameterError(
306 "Mono data must have shape (samples,). " "Received shape={}".format(y.shape)
307 )

ParameterError: Mono data must have shape (samples,). Received shape=(1, 42240)