add bilingual small model (new default)

app/asr_worker.py

@@ -14,6 +14,15 @@ converter = OpenCC('s2t')
 
 # Streaming Zipformer model registry: paths relative to repo root
 STREAMING_ZIPFORMER_MODELS = {
+    "csukuangfj/k2fsa-zipformer-bilingual-zh-en-t": {
+        "tokens": "data/lang_char_bpe/tokens.txt",
+        "encoder_fp32": "exp/96/encoder-epoch-99-avg-1.onnx",
+        "encoder_int8": "exp/96/encoder-epoch-99-avg-1.int8.onnx",
+        "decoder_fp32": "exp/96/decoder-epoch-99-avg-1.onnx",
+        "decoder_int8": "exp/96/decoder-epoch-99-avg-1.int8.onnx",
+        "joiner_fp32": "exp/96/joiner-epoch-99-avg-1.onnx",
+        "joiner_int8": "exp/96/joiner-epoch-99-avg-1.int8.onnx",
+    },
     "pfluo/k2fsa-zipformer-chinese-english-mixed": {
         "tokens": "data/lang_char_bpe/tokens.txt",
         "encoder_fp32": "exp/encoder-epoch-99-avg-1.onnx",

app/static/index.html

@@ -99,6 +99,7 @@
   <div class="controls">
     <label for="modelSelect">Model:</label>
     <select id="modelSelect">
+      <option value="csukuangfj/k2fsa-zipformer-bilingual-zh-en-t">k2fsa-small-bilingual-zh-en</option>
       <option value="pfluo/k2fsa-zipformer-chinese-english-mixed">k2fsa-chinese-english-mixed</option>
       <option value="k2-fsa/sherpa-onnx-streaming-zipformer-korean-2024-06-16">sherpa-onnx-zipformer-korean</option>
       <option value="k2-fsa/sherpa-onnx-streaming-zipformer-multi-zh-hans-2023-12-12">zipformer-multi-zh-hans</option>
@@ -131,6 +132,7 @@
 
   <script>
     const MODEL_METADATA = {
+      "csukuangfj/k2fsa-zipformer-bilingual-zh-en-t": { language: ["zh", "en"], size: 115 },
       "pfluo/k2fsa-zipformer-chinese-english-mixed": { language: ["zh", "en"], size: 342 },
       "k2-fsa/sherpa-onnx-streaming-zipformer-korean-2024-06-16": { language: "korean", size: 300 },
       "k2-fsa/sherpa-onnx-streaming-zipformer-multi-zh-hans-2023-12-12": { language: "zh-Hans", size: 258 },