Add Flush to VAD so that the last segment can be detected. (#1099)

2024-07-09 16:15:56 +08:00
parent 3e4307e2fb
commit c2cc9dec58
35 changed files with 237 additions and 29 deletions
--- a/dart-api-examples/non-streaming-asr/bin/vad-with-paraformer.dart
+++ b/dart-api-examples/non-streaming-asr/bin/vad-with-paraformer.dart
@@ -93,6 +93,28 @@ void main(List<String> arguments) async {
    }
  }

+  vad.flush();
+  while (!vad.isEmpty()) {
+    final stream = recognizer.createStream();
+    final segment = vad.front();
+    stream.acceptWaveform(
+        samples: segment.samples, sampleRate: waveData.sampleRate);
+    recognizer.decode(stream);
+
+    final result = recognizer.getResult(stream);
+
+    final startTime = segment.start * 1.0 / waveData.sampleRate;
+    final duration = segment.samples.length * 1.0 / waveData.sampleRate;
+    final stopTime = startTime + duration;
+    if (result.text != '') {
+      print(
+          '${startTime.toStringAsPrecision(4)} -- ${stopTime.toStringAsPrecision(4)}: ${result.text}');
+    }
+
+    stream.free();
+    vad.pop();
+  }
+
  vad.free();
  recognizer.free();
 }