leestevennz commited on
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220d255
1 Parent(s): 5f03871

Create app.py

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  1. app.py +0 -71
app.py CHANGED
@@ -1,71 +0,0 @@
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- import gradio as gr
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- import torch
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- import librosa
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- import soundfile
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- import nemo.collections.asr as nemo_asr
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- import tempfile
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- import os
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- import uuid
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-
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- SAMPLE_RATE = 16000
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-
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- model = nemo_asr.models.EncDecRNNTBPEModel.from_pretrained("stt_en_conformer_transducer_large")
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- model.change_decoding_strategy(None)
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- model.eval()
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-
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-
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- def process_audio_file(file):
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- data, sr = librosa.load(file)
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-
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- if sr != SAMPLE_RATE:
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- data = librosa.resample(data, sr, SAMPLE_RATE)
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-
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- # monochannel
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- data = librosa.to_mono(data)
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- return data
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-
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-
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- def transcribe(Microphone, File_Upload):
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- warn_output = ""
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- if (Microphone is not None) and (File_Upload is not None):
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- warn_output = "WARNING: You've uploaded an audio file and used the microphone. " \
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- "The recorded file from the microphone will be used and the uploaded audio will be discarded.\n"
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- file = Microphone
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-
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- elif (Microphone is None) and (File_Upload is None):
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- return "ERROR: You have to either use the microphone or upload an audio file"
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-
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- elif Microphone is not None:
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- file = Microphone
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- else:
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- file = File_Upload
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-
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- audio_data = process_audio_file(file)
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-
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- with tempfile.TemporaryDirectory() as tmpdir:
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- audio_path = os.path.join(tmpdir, f'audio_{uuid.uuid4()}.wav')
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- soundfile.write(audio_path, audio_data, SAMPLE_RATE)
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-
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- transcriptions = model.transcribe([audio_path])
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-
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- # if transcriptions form a tuple (from RNNT), extract just "best" hypothesis
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- if type(transcriptions) == tuple and len(transcriptions) == 2:
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- transcriptions = transcriptions[0]
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-
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- return warn_output + transcriptions[0]
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-
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-
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- iface = gr.Interface(
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- fn=transcribe,
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- inputs=[
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- gr.inputs.Audio(source="microphone", type='filepath', optional=True),
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- gr.inputs.Audio(source="upload", type='filepath', optional=True),
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- ],
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- outputs="text",
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- layout="horizontal",
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- theme="huggingface",
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- title="NeMo Conformer Transducer Large - English",
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- description="Demo for English speech recognition using Conformer Transducers",
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- allow_flagging='never',
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- )
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- iface.launch(enable_queue=True)