feat: add app.py

app.py

@@ -0,0 +1,151 @@
+import json
+
+import gradio as gr
+from huggingface_hub import snapshot_download
+from omegaconf import OmegaConf
+from vosk import KaldiRecognizer, Model
+
+
+def load_vosk(model_id: str):
+    model_dir = snapshot_download(model_id)
+    return Model(model_path=model_dir)
+
+
+OmegaConf.register_new_resolver("load_vosk", load_vosk)
+
+models_config = OmegaConf.to_object(OmegaConf.load("configs/models.yaml"))
+
+
+def automatic_speech_recognition(
+    model_id: str, dialect_id: str, stream: str, new_chunk: str
+):
+    if isinstance(models_config[model_id]["model"], dict):
+        model = models_config[model_id]["model"][dialect_id]
+    else:
+        model = models_config[model_id]["model"]
+
+    sample_rate, audio_array = new_chunk
+    if audio_array.ndim == 2:
+        audio_array = audio_array[:, 0]
+
+    audio_bytes = audio_array.tobytes()
+
+    if stream is None:
+        rec = KaldiRecognizer(model, sample_rate)
+        rec.SetWords(True)
+        result = []
+    else:
+        rec, result = stream
+
+    if rec.AcceptWaveform(audio_bytes):
+        text_result = json.loads(rec.Result())["text"]
+        if text_result != "":
+            result.append(text_result)
+        partial_result = ""
+    else:
+        partial_result = json.loads(rec.PartialResult())["partial"] + " "
+
+    if len(result) > 0:
+        output_text = "，".join(result) + "，" + partial_result
+    else:
+        output_text = partial_result
+
+    return (rec, result), output_text
+
+
+def when_model_selected(model_id: str):
+    model_config = models_config[model_id]
+
+    if "dialect_mapping" not in model_config:
+        return gr.update(visible=False)
+
+    dialect_drop_down_choices = [
+        (k, v) for k, v in model_config["dialect_mapping"].items()
+    ]
+
+    return gr.update(
+        choices=dialect_drop_down_choices,
+        value=dialect_drop_down_choices[0][1],
+        visible=True,
+    )
+
+
+demo = gr.Blocks(
+    title="臺灣客語語音辨識系統",
+    css="@import url(https://tauhu.tw/tauhu-oo.css);",
+    theme=gr.themes.Default(
+        font=(
+            "tauhu-oo",
+            gr.themes.GoogleFont("Source Sans Pro"),
+            "ui-sans-serif",
+            "system-ui",
+            "sans-serif",
+        )
+    ),
+)
+
+with demo:
+    default_model_id = list(models_config.keys())[0]
+    model_drop_down = gr.Dropdown(
+        models_config.keys(),
+        value=default_model_id,
+        label="模型",
+    )
+
+    dialect_drop_down = gr.Dropdown(
+        choices=[
+            (k, v)
+            for k, v in models_config[default_model_id]["dialect_mapping"].items()
+        ],
+        value=list(models_config[default_model_id]["dialect_mapping"].values())[0],
+        label="腔調",
+    )
+
+    model_drop_down.input(
+        when_model_selected,
+        inputs=[model_drop_down],
+        outputs=[dialect_drop_down],
+    )
+
+    gr.Markdown(
+        """
+        # 臺灣客語語音辨識系統
+        ### Taiwanese Hakka Automatic-Speech-Recognition System
+        ### 研發
+        - **[李鴻欣 Hung-Shin Lee](mailto:hungshinlee@gmail.com)（[聯和科創](https://www.104.com.tw/company/1a2x6bmu75)）**
+        - **[陳力瑋 Li-Wei Chen](mailto:wayne900619@gmail.com)（[聯和科創](https://www.104.com.tw/company/1a2x6bmu75)）**
+        ### 合作單位
+        - **[國立聯合大學智慧客家實驗室](https://www.gohakka.org)**
+        """
+    )
+    state = gr.State()
+    audio = gr.Audio(
+        label="錄音",
+        type="numpy",
+        format="wav",
+        waveform_options=gr.WaveformOptions(
+            sample_rate=16000,
+        ),
+        sources=["microphone"],
+        streaming=True,
+    )
+    gr.Interface(
+        automatic_speech_recognition,
+        inputs=[
+            model_drop_down,
+            dialect_drop_down,
+            state,
+            audio,
+        ],
+        outputs=[
+            state,
+            gr.Text(interactive=False, label="客語漢字"),
+        ],
+        live=True,
+        stream_every=0.25,
+        clear_btn=None,
+        # flagging_mode="auto",
+    )
+
+
+demo.launch()

configs/models.yaml

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+htia-0.1:
+  model:
+    htia_sixian: ${load_vosk:formospeech/kaldi-taiwanese-hakka-sixian}
+    htia_hailu: ${load_vosk:formospeech/kaldi-taiwanese-hakka-hailu}
+    htia_dapu: ${load_vosk:formospeech/kaldi-taiwanese-hakka-dapu}
+    htia_raoping: ${load_vosk:formospeech/kaldi-taiwanese-hakka-raoping}
+    htia_zhaoan: ${load_vosk:formospeech/kaldi-taiwanese-hakka-zhaoan}
+    htia_nansixian: ${load_vosk:formospeech/kaldi-taiwanese-hakka-nansixian}
+  dialect_mapping:
+    四縣: htia_sixian
+    海陸: htia_hailu
+    大埔: htia_dapu
+    饒平: htia_raoping
+    詔安: htia_zhaoan
+    南四縣: htia_nansixian
+
+htia-0.1m:
+  model: ${load_vosk:formospeech/kaldi-taiwanese-hakka-merge}

requirements.txt

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+vosk
+omegaconf