Fix displaying streaming speech recognition results for Python. (#2196)

python-api-examples/streaming-paraformer-asr-microphone.py

@@ -74,8 +74,8 @@ def main():
 
     stream = recognizer.create_stream()
 
-    last_result = ""
-    segment_id = 0
+    display = sherpa_onnx.Display()
+
     with sd.InputStream(channels=1, dtype="float32", samplerate=sample_rate) as s:
         while True:
             samples, _ = s.read(samples_per_read)  # a blocking read
@@ -88,13 +88,14 @@ def main():
 
             result = recognizer.get_result(stream)
 
-            if result and (last_result != result):
-                last_result = result
-                print("\r{}:{}".format(segment_id, result), end="", flush=True)
+            display.update_text(result)
+            display.display()
+
             if is_endpoint:
                 if result:
-                    print("\r{}:{}".format(segment_id, result), flush=True)
-                    segment_id += 1
+                    display.finalize_current_sentence()
+                    display.display()
+
                 recognizer.reset(stream)