fix(sensevoice): stop rendering the Cough event as the Sneeze emoji (#3747)

rich_transcription_postprocess() maps SenseVoice event tags through
event_dict, which used 🤧 for both <|Sneeze|> and <|Cough|>, so coughs
were displayed as sneezes. emoji_dict and event_set already use 😷 for
coughs; use it in event_dict too, in funasr and in the funasr_onnx and
funasr_torch runtime copies.

funasr/utils/postprocess_utils.py

@@ -353,7 +353,7 @@ event_dict = {
     "<|Cry|>": "😭",
     "<|Sneeze|>": "🤧",
     "<|Breath|>": "",
-    "<|Cough|>": "🤧",
+    "<|Cough|>": "😷",
 }
 
 lang_dict = {

runtime/python/libtorch/funasr_torch/utils/postprocess_utils.py

@@ -262,7 +262,7 @@ event_dict = {
     "<|Cry|>": "😭",
     "<|Sneeze|>": "🤧",
     "<|Breath|>": "",
-    "<|Cough|>": "🤧",
+    "<|Cough|>": "😷",
 }
 
 lang_dict = {

runtime/python/onnxruntime/funasr_onnx/utils/postprocess_utils.py

@@ -316,7 +316,7 @@ event_dict = {
     "<|Cry|>": "😭",
     "<|Sneeze|>": "🤧",
     "<|Breath|>": "",
-    "<|Cough|>": "🤧",
+    "<|Cough|>": "😷",
 }
 
 lang_dict = {

tests/test_rich_transcription_postprocess.py

@@ -0,0 +1,34 @@
+"""Regression tests for SenseVoice rich transcription postprocessing."""
+
+import importlib.util
+from pathlib import Path
+
+import pytest
+
+REPO_ROOT = Path(__file__).resolve().parents[1]
+RUNTIME_PYTHON = REPO_ROOT / "runtime" / "python"
+POSTPROCESS_UTILS = [
+    REPO_ROOT / "funasr" / "utils" / "postprocess_utils.py",
+    RUNTIME_PYTHON / "onnxruntime" / "funasr_onnx" / "utils" / "postprocess_utils.py",
+    RUNTIME_PYTHON / "libtorch" / "funasr_torch" / "utils" / "postprocess_utils.py",
+]
+
+
+def _load(path):
+    spec = importlib.util.spec_from_file_location(f"_postprocess_utils_{path.parts[-3]}", path)
+    module = importlib.util.module_from_spec(spec)
+    spec.loader.exec_module(module)
+    return module
+
+
+@pytest.mark.parametrize("path", POSTPROCESS_UTILS, ids=lambda path: path.parts[-3])
+@pytest.mark.parametrize(
+    "event, emoji",
+    [("<|Cough|>", "😷"), ("<|Sneeze|>", "🤧")],
+)
+def test_cough_and_sneeze_events_render_distinct_emojis(path, event, emoji):
+    module = _load(path)
+
+    text = module.rich_transcription_postprocess(f"<|en|><|NEUTRAL|>{event}<|woitn|>hello")
+
+    assert text == f"{emoji}hello"