# import whisper
from faster_whisper import WhisperModel
import datetime
import subprocess
import gradio as gr
from pathlib import Path
import pandas as pd
import re
import time
import os
import numpy as np
from sklearn.cluster import AgglomerativeClustering
from sklearn.metrics import silhouette_score
from pytube import YouTube
import yt_dlp
import torch
import pyannote.audio
from pyannote.audio.pipelines.speaker_verification import PretrainedSpeakerEmbedding
from pyannote.audio import Audio
from pyannote.core import Segment
from gpuinfo import GPUInfo
import wave
import contextlib
from transformers import pipeline
import psutil
whisper_models = ["tiny", "base", "small", "medium", "large-v1", "large-v2"]
source_languages = {
"en": "English",
"zh": "Chinese",
"de": "German",
"es": "Spanish",
"ru": "Russian",
"ko": "Korean",
"fr": "French",
"ja": "Japanese",
"pt": "Portuguese",
"tr": "Turkish",
"pl": "Polish",
"ca": "Catalan",
"nl": "Dutch",
"ar": "Arabic",
"sv": "Swedish",
"it": "Italian",
"id": "Indonesian",
"hi": "Hindi",
"fi": "Finnish",
"vi": "Vietnamese",
"he": "Hebrew",
"uk": "Ukrainian",
"el": "Greek",
"ms": "Malay",
"cs": "Czech",
"ro": "Romanian",
"da": "Danish",
"hu": "Hungarian",
"ta": "Tamil",
"no": "Norwegian",
"th": "Thai",
"ur": "Urdu",
"hr": "Croatian",
"bg": "Bulgarian",
"lt": "Lithuanian",
"la": "Latin",
"mi": "Maori",
"ml": "Malayalam",
"cy": "Welsh",
"sk": "Slovak",
"te": "Telugu",
"fa": "Persian",
"lv": "Latvian",
"bn": "Bengali",
"sr": "Serbian",
"az": "Azerbaijani",
"sl": "Slovenian",
"kn": "Kannada",
"et": "Estonian",
"mk": "Macedonian",
"br": "Breton",
"eu": "Basque",
"is": "Icelandic",
"hy": "Armenian",
"ne": "Nepali",
"mn": "Mongolian",
"bs": "Bosnian",
"kk": "Kazakh",
"sq": "Albanian",
"sw": "Swahili",
"gl": "Galician",
"mr": "Marathi",
"pa": "Punjabi",
"si": "Sinhala",
"km": "Khmer",
"sn": "Shona",
"yo": "Yoruba",
"so": "Somali",
"af": "Afrikaans",
"oc": "Occitan",
"ka": "Georgian",
"be": "Belarusian",
"tg": "Tajik",
"sd": "Sindhi",
"gu": "Gujarati",
"am": "Amharic",
"yi": "Yiddish",
"lo": "Lao",
"uz": "Uzbek",
"fo": "Faroese",
"ht": "Haitian creole",
"ps": "Pashto",
"tk": "Turkmen",
"nn": "Nynorsk",
"mt": "Maltese",
"sa": "Sanskrit",
"lb": "Luxembourgish",
"my": "Myanmar",
"bo": "Tibetan",
"tl": "Tagalog",
"mg": "Malagasy",
"as": "Assamese",
"tt": "Tatar",
"haw": "Hawaiian",
"ln": "Lingala",
"ha": "Hausa",
"ba": "Bashkir",
"jw": "Javanese",
"su": "Sundanese",
}
source_language_list = [key[0] for key in source_languages.items()]
MODEL_NAME = "vumichien/whisper-medium-jp"
lang = "ja"
device = 0 if torch.cuda.is_available() else "cpu"
pipe = pipeline(
task="automatic-speech-recognition",
model=MODEL_NAME,
chunk_length_s=30,
device=device,
)
os.makedirs('output', exist_ok=True)
pipe.model.config.forced_decoder_ids = pipe.tokenizer.get_decoder_prompt_ids(language=lang, task="transcribe")
embedding_model = PretrainedSpeakerEmbedding(
"speechbrain/spkrec-ecapa-voxceleb",
device=torch.device("cuda" if torch.cuda.is_available() else "cpu"))
def transcribe(microphone, file_upload):
warn_output = ""
if (microphone is not None) and (file_upload is not None):
warn_output = (
"WARNING: You've uploaded an audio file and used the microphone. "
"The recorded file from the microphone will be used and the uploaded audio will be discarded.\n"
)
elif (microphone is None) and (file_upload is None):
return "ERROR: You have to either use the microphone or upload an audio file"
file = microphone if microphone is not None else file_upload
text = pipe(file)["text"]
return warn_output + text
def _return_yt_html_embed(yt_url):
video_id = yt_url.split("?v=")[-1]
HTML_str = (
f'
'
"
"
)
return HTML_str
def yt_transcribe(yt_url):
# yt = YouTube(yt_url)
# html_embed_str = _return_yt_html_embed(yt_url)
# stream = yt.streams.filter(only_audio=True)[0]
# stream.download(filename="audio.mp3")
ydl_opts = {
'format': 'bestvideo*+bestaudio/best',
'postprocessors': [{
'key': 'FFmpegExtractAudio',
'preferredcodec': 'mp3',
'preferredquality': '192',
}],
'outtmpl':'audio.%(ext)s',
}
with yt_dlp.YoutubeDL(ydl_opts) as ydl:
ydl.download([yt_url])
text = pipe("audio.mp3")["text"]
return html_embed_str, text
def convert_time(secs):
return datetime.timedelta(seconds=round(secs))
def get_youtube(video_url):
# yt = YouTube(video_url)
# abs_video_path = yt.streams.filter(progressive=True, file_extension='mp4').order_by('resolution').desc().first().download()
ydl_opts = {
'format': 'bestvideo[ext=mp4]+bestaudio[ext=m4a]/best[ext=mp4]/best',
}
with yt_dlp.YoutubeDL(ydl_opts) as ydl:
info = ydl.extract_info(video_url, download=False)
abs_video_path = ydl.prepare_filename(info)
ydl.process_info(info)
print("Success download video")
print(abs_video_path)
return abs_video_path
def speech_to_text(video_file_path, selected_source_lang, whisper_model, num_speakers):
"""
# Transcribe youtube link using OpenAI Whisper
1. Using Open AI's Whisper model to seperate audio into segments and generate transcripts.
2. Generating speaker embeddings for each segments.
3. Applying agglomerative clustering on the embeddings to identify the speaker for each segment.
Speech Recognition is based on models from OpenAI Whisper https://github.com/openai/whisper
Speaker diarization model and pipeline from by https://github.com/pyannote/pyannote-audio
"""
# model = whisper.load_model(whisper_model)
# model = WhisperModel(whisper_model, device="cuda", compute_type="int8_float16")
model = WhisperModel(whisper_model, compute_type="int8")
time_start = time.time()
if(video_file_path == None):
raise ValueError("Error no video input")
print(video_file_path)
try:
# Read and convert youtube video
_,file_ending = os.path.splitext(f'{video_file_path}')
print(f'file enging is {file_ending}')
audio_file = video_file_path.replace(file_ending, ".wav")
print("starting conversion to wav")
os.system(f'ffmpeg -i "{video_file_path}" -ar 16000 -ac 1 -c:a pcm_s16le "{audio_file}"')
# Get duration
with contextlib.closing(wave.open(audio_file,'r')) as f:
frames = f.getnframes()
rate = f.getframerate()
duration = frames / float(rate)
print(f"conversion to wav ready, duration of audio file: {duration}")
# Transcribe audio
options = dict(language=selected_source_lang, beam_size=5, best_of=5)
transcribe_options = dict(task="transcribe", **options)
segments_raw, info = model.transcribe(audio_file, **transcribe_options)
# Convert back to original openai format
segments = []
i = 0
for segment_chunk in segments_raw:
chunk = {}
chunk["start"] = segment_chunk.start
chunk["end"] = segment_chunk.end
chunk["text"] = segment_chunk.text
segments.append(chunk)
i += 1
print("transcribe audio done with fast whisper")
except Exception as e:
raise RuntimeError("Error converting video to audio")
try:
# Create embedding
def segment_embedding(segment):
audio = Audio()
start = segment["start"]
# Whisper overshoots the end timestamp in the last segment
end = min(duration, segment["end"])
clip = Segment(start, end)
waveform, sample_rate = audio.crop(audio_file, clip)
return embedding_model(waveform[None])
embeddings = np.zeros(shape=(len(segments), 192))
for i, segment in enumerate(segments):
embeddings[i] = segment_embedding(segment)
embeddings = np.nan_to_num(embeddings)
print(f'Embedding shape: {embeddings.shape}')
if num_speakers == 0:
# Find the best number of speakers
score_num_speakers = {}
for num_speakers in range(2, 10+1):
clustering = AgglomerativeClustering(num_speakers).fit(embeddings)
score = silhouette_score(embeddings, clustering.labels_, metric='euclidean')
score_num_speakers[num_speakers] = score
best_num_speaker = max(score_num_speakers, key=lambda x:score_num_speakers[x])
print(f"The best number of speakers: {best_num_speaker} with {score_num_speakers[best_num_speaker]} score")
else:
best_num_speaker = num_speakers
# Assign speaker label
clustering = AgglomerativeClustering(best_num_speaker).fit(embeddings)
labels = clustering.labels_
for i in range(len(segments)):
segments[i]["speaker"] = 'SPEAKER ' + str(labels[i] + 1)
# Make output
objects = {
'Start' : [],
'End': [],
'Speaker': [],
'Text': []
}
text = ''
for (i, segment) in enumerate(segments):
if i == 0 or segments[i - 1]["speaker"] != segment["speaker"]:
objects['Start'].append(str(convert_time(segment["start"])))
objects['Speaker'].append(segment["speaker"])
if i != 0:
objects['End'].append(str(convert_time(segments[i - 1]["end"])))
objects['Text'].append(text)
text = ''
text += segment["text"] + ' '
objects['End'].append(str(convert_time(segments[i - 1]["end"])))
objects['Text'].append(text)
time_end = time.time()
time_diff = time_end - time_start
memory = psutil.virtual_memory()
gpu_utilization, gpu_memory = GPUInfo.gpu_usage()
gpu_utilization = gpu_utilization[0] if len(gpu_utilization) > 0 else 0
gpu_memory = gpu_memory[0] if len(gpu_memory) > 0 else 0
system_info = f"""
*Memory: {memory.total / (1024 * 1024 * 1024):.2f}GB, used: {memory.percent}%, available: {memory.available / (1024 * 1024 * 1024):.2f}GB.*
*Processing time: {time_diff:.5} seconds.*
*GPU Utilization: {gpu_utilization}%, GPU Memory: {gpu_memory}MiB.*
"""
save_path = "output/transcript_result.csv"
df_results = pd.DataFrame(objects)
df_results.to_csv(save_path)
return df_results, system_info, save_path
except Exception as e:
raise RuntimeError("Error Running inference with local model", e)
# ---- Gradio Layout -----
# Inspiration from https://huggingface.co/spaces/RASMUS/Whisper-youtube-crosslingual-subtitles
video_in = gr.Video(label="Video file", mirror_webcam=False)
youtube_url_in = gr.Textbox(label="Youtube url", lines=1, interactive=True)
df_init = pd.DataFrame(columns=['Start', 'End', 'Speaker', 'Text'])
memory = psutil.virtual_memory()
selected_source_lang = gr.Dropdown(choices=source_language_list, type="value", value="en", label="Spoken language in video", interactive=True)
selected_whisper_model = gr.Dropdown(choices=whisper_models, type="value", value="base", label="Selected Whisper model", interactive=True)
number_speakers = gr.Number(precision=0, value=0, label="Input number of speakers for better results. If value=0, model will automatic find the best number of speakers", interactive=True)
system_info = gr.Markdown(f"*Memory: {memory.total / (1024 * 1024 * 1024):.2f}GB, used: {memory.percent}%, available: {memory.available / (1024 * 1024 * 1024):.2f}GB*")
download_transcript = gr.File(label="Download transcript")
transcription_df = gr.DataFrame(value=df_init,label="Transcription dataframe", row_count=(0, "dynamic"), max_rows = 10, wrap=True, overflow_row_behaviour='paginate')
title = "Whisper speaker diarization"
demo = gr.Blocks(title=title)
demo.encrypt = False
with demo:
with gr.Tab("Whisper speaker diarization"):
gr.Markdown('''
Whisper speaker diarization
This space uses Whisper models from OpenAI with CTranslate2 which is a fast inference engine for Transformer models to recognize the speech (4 times faster than original openai model with same accuracy)
and ECAPA-TDNN model from SpeechBrain to encode and clasify speakers
''')
with gr.Row():
gr.Markdown('''
### Transcribe youtube link using OpenAI Whisper
##### 1. Using Open AI's Whisper model to seperate audio into segments and generate transcripts.
##### 2. Generating speaker embeddings for each segments.
##### 3. Applying agglomerative clustering on the embeddings to identify the speaker for each segment.
''')
with gr.Row():
gr.Markdown('''
### You can test by following examples:
''')
examples = gr.Examples(examples=
[ "https://www.youtube.com/watch?v=j7BfEzAFuYc&t=32s",
"https://www.youtube.com/watch?v=-UX0X45sYe4",
"https://www.youtube.com/watch?v=7minSgqi-Gw"],
label="Examples", inputs=[youtube_url_in])
with gr.Row():
with gr.Column():
youtube_url_in.render()
download_youtube_btn = gr.Button("Download Youtube video")
download_youtube_btn.click(get_youtube, [youtube_url_in], [
video_in])
print(video_in)
with gr.Row():
with gr.Column():
video_in.render()
with gr.Column():
gr.Markdown('''
##### Here you can start the transcription process.
##### Please select the source language for transcription.
##### You can select a range of assumed numbers of speakers.
''')
selected_source_lang.render()
selected_whisper_model.render()
number_speakers.render()
transcribe_btn = gr.Button("Transcribe audio and diarization")
transcribe_btn.click(speech_to_text,
[video_in, selected_source_lang, selected_whisper_model, number_speakers],
[transcription_df, system_info, download_transcript]
)
with gr.Row():
gr.Markdown('''
##### Here you will get transcription output
##### ''')
with gr.Row():
with gr.Column():
download_transcript.render()
transcription_df.render()
system_info.render()
gr.Markdown('''
''')
with gr.Tab("Whisper Transcribe Japanese Audio"):
gr.Markdown(f'''
Whisper Transcribe Japanese Audio
Transcribe long-form microphone or audio inputs with the click of a button! The fine-tuned
checkpoint {MODEL_NAME} to transcribe audio files of arbitrary length.
''')
microphone = gr.inputs.Audio(source="microphone", type="filepath", optional=True)
upload = gr.inputs.Audio(source="upload", type="filepath", optional=True)
transcribe_btn = gr.Button("Transcribe Audio")
text_output = gr.Textbox()
with gr.Row():
gr.Markdown('''
### You can test by following examples:
''')
examples = gr.Examples(examples=
[ "sample1.wav",
"sample2.wav",
],
label="Examples", inputs=[upload])
transcribe_btn.click(transcribe, [microphone, upload], outputs=text_output)
with gr.Tab("Whisper Transcribe Japanese YouTube"):
gr.Markdown(f'''
Whisper Transcribe Japanese YouTube
Transcribe long-form YouTube videos with the click of a button! The fine-tuned checkpoint:
{MODEL_NAME} to transcribe audio files of arbitrary length.
''')
youtube_link = gr.Textbox(label="Youtube url", lines=1, interactive=True)
yt_transcribe_btn = gr.Button("Transcribe YouTube")
text_output2 = gr.Textbox()
html_output = gr.Markdown()
yt_transcribe_btn.click(yt_transcribe, [youtube_link], outputs=[html_output, text_output2])
demo.launch(debug=True)
