Merge pull request myshell-ai#10 from myshell-ai/dev_vad

Dev vad

demo_part1.ipynb

@@ -94,7 +94,7 @@
    "outputs": [],
    "source": [
     "reference_speaker = 'resources/example_reference.mp3'\n",
-    "target_se, audio_name = se_extractor.get_se(reference_speaker, tone_color_converter)"
+    "target_se, audio_name = se_extractor.get_se(reference_speaker, tone_color_converter, target_dir='processed', vad=True)"
    ]
   },
   {
@@ -115,7 +115,7 @@
     "save_path = f'{output_dir}/output_en_default.wav'\n",
     "\n",
     "# Run the base speaker tts\n",
-    "text = \"This audio is generated by open voice.\"\n",
+    "text = \"This audio is generated by OpenVoice.\"\n",
     "src_path = f'{output_dir}/tmp.wav'\n",
     "base_speaker_tts.tts(text, src_path, speaker='default', language='English', speed=1.0)\n",
     "\n",
@@ -148,7 +148,7 @@
     "save_path = f'{output_dir}/output_whispering.wav'\n",
     "\n",
     "# Run the base speaker tts\n",
-    "text = \"This audio is generated by open voice with a half-performance model.\"\n",
+    "text = \"This audio is generated by OpenVoice with a half-performance model.\"\n",
     "src_path = f'{output_dir}/tmp.wav'\n",
     "base_speaker_tts.tts(text, src_path, speaker='whispering', language='English', speed=0.9)\n",
     "\n",

demo_part2.ipynb

@@ -108,10 +108,10 @@
    "outputs": [],
    "source": [
     "base_speaker = f\"{output_dir}/openai_source_output.mp3\"\n",
-    "source_se, audio_name = se_extractor.get_se(base_speaker, tone_color_converter)\n",
+    "source_se, audio_name = se_extractor.get_se(base_speaker, tone_color_converter, vad=True)\n",
     "\n",
     "reference_speaker = 'resources/example_reference.mp3'\n",
-    "target_se, audio_name = se_extractor.get_se(reference_speaker, tone_color_converter)"
+    "target_se, audio_name = se_extractor.get_se(reference_speaker, tone_color_converter, vad=True)"
    ]
   },
   {

requirements.txt

@@ -6,5 +6,6 @@ numpy==1.22.0
 eng_to_ipa==0.0.2
 inflect==7.0.0
 unidecode==1.3.7
+whisper-timestamped==1.14.2
 openai
 python-dotenv

se_extractor.py

@@ -4,11 +4,12 @@
 from glob import glob
 from pydub import AudioSegment
 from faster_whisper import WhisperModel
+from whisper_timestamped.transcribe import get_audio_tensor, get_vad_segments
 
 model_size = "medium"
 # Run on GPU with FP16
 model = None
-def split_audio(audio_path, target_dir='processed'):
+def split_audio_whisper(audio_path, target_dir='processed'):
     global model
     if model is None:
         model = WhisperModel(model_size, device="cuda", compute_type="float16")
@@ -67,7 +68,47 @@ def split_audio(audio_path, target_dir='processed'):
     return wavs_folder
 
 
-def get_se(audio_path, vc_model, target_dir='processed'):
+def split_audio_vad(audio_path, target_dir, split_seconds=10):
+    SAMPLE_RATE = 16000
+    audio_vad = get_audio_tensor(audio_path)
+    segments = get_vad_segments(
+        audio_vad,
+        output_sample=True,
+        min_speech_duration=0.1,
+        min_silence_duration=1,
+        method="silero",
+    )
+    segments = [(seg["start"], seg["end"]) for seg in segments]
+    segments = [(float(s)/SAMPLE_RATE, float(e)/SAMPLE_RATE) for s,e in segments]
+    print(segments)
+    audio_active = AudioSegment.silent(duration=0)
+    audio = AudioSegment.from_file(audio_path)
+
+    for start_time, end_time in segments:
+        audio_active += audio[int( start_time * 1000) : int(end_time * 1000)]
+
+    audio_dur = audio_active.duration_seconds
+    print(f'after vad: dur = {audio_dur}')
+    audio_name = os.path.basename(audio_path).rsplit('.', 1)[0]
+    target_folder = os.path.join(target_dir, audio_name)
+    wavs_folder = os.path.join(target_folder, 'wavs')
+    os.makedirs(wavs_folder, exist_ok=True)
+    start_time = 0.
+    count = 0
+    while start_time < audio_dur:
+        end_time = min(start_time + split_seconds, audio_dur)
+        output_file = f"{wavs_folder}/{audio_name}_seg{count}.wav"
+        audio_seg = audio_active[int(start_time * 1000): int(end_time * 1000)]
+        audio_seg.export(output_file, format='wav')
+        start_time = end_time
+        count += 1
+    return wavs_folder
+
+
+
+
+
+def get_se(audio_path, vc_model, target_dir='processed', vad=True):
     device = vc_model.device
 
     audio_name = os.path.basename(audio_path).rsplit('.', 1)[0]
@@ -78,8 +119,10 @@ def get_se(audio_path, vc_model, target_dir='processed'):
         return se, audio_name
     if os.path.isdir(audio_path):
         wavs_folder = audio_path
+    elif vad:
+        wavs_folder = split_audio_vad(audio_path, target_dir)
     else:
-        wavs_folder = split_audio(audio_path, target_dir)
+        wavs_folder = split_audio_whisper(audio_path, target_dir)
 
     audio_segs = glob(f'{wavs_folder}/*.wav')
     if len(audio_segs) == 0: