speech/src/main/java/com/example/speech/RecognizeBeta.java [323:360]:
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  public static void transcribeMultiChannelGcs(String gcsUri) throws Exception {

    try (SpeechClient speechClient = SpeechClient.create()) {

      // Configure request to enable multiple channels
      RecognitionConfig config =
          RecognitionConfig.newBuilder()
              .setEncoding(AudioEncoding.LINEAR16)
              .setLanguageCode("en-US")
              .setSampleRateHertz(44100)
              .setAudioChannelCount(2)
              .setEnableSeparateRecognitionPerChannel(true)
              .build();

      // Set the remote path for the audio file
      RecognitionAudio audio = RecognitionAudio.newBuilder().setUri(gcsUri).build();

      // Use non-blocking call for getting file transcription
      OperationFuture<LongRunningRecognizeResponse, LongRunningRecognizeMetadata> response =
          speechClient.longRunningRecognizeAsync(config, audio);

      while (!response.isDone()) {
        System.out.println("Waiting for response...");
        Thread.sleep(10000);
      }
      // Just print the first result here.
      for (SpeechRecognitionResult result : response.get().getResultsList()) {

        // There can be several alternative transcripts for a given chunk of speech. Just use the
        // first (most likely) one here.
        SpeechRecognitionAlternative alternative = result.getAlternativesList().get(0);

        // Print out the result
        System.out.printf("Transcript : %s\n", alternative.getTranscript());
        System.out.printf("Channel Tag : %s\n\n", result.getChannelTag());
      }
    }
  }
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speech/src/main/java/com/example/speech/Recognize.java [902:939]:
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  public static void transcribeMultiChannelGcs(String gcsUri) throws Exception {

    try (SpeechClient speechClient = SpeechClient.create()) {

      // Configure request to enable multiple channels
      RecognitionConfig config =
          RecognitionConfig.newBuilder()
              .setEncoding(AudioEncoding.LINEAR16)
              .setLanguageCode("en-US")
              .setSampleRateHertz(44100)
              .setAudioChannelCount(2)
              .setEnableSeparateRecognitionPerChannel(true)
              .build();

      // Set the remote path for the audio file
      RecognitionAudio audio = RecognitionAudio.newBuilder().setUri(gcsUri).build();

      // Use non-blocking call for getting file transcription
      OperationFuture<LongRunningRecognizeResponse, LongRunningRecognizeMetadata> response =
          speechClient.longRunningRecognizeAsync(config, audio);

      while (!response.isDone()) {
        System.out.println("Waiting for response...");
        Thread.sleep(10000);
      }
      // Just print the first result here.
      for (SpeechRecognitionResult result : response.get().getResultsList()) {

        // There can be several alternative transcripts for a given chunk of speech. Just use the
        // first (most likely) one here.
        SpeechRecognitionAlternative alternative = result.getAlternativesList().get(0);

        // Print out the result
        System.out.printf("Transcript : %s\n", alternative.getTranscript());
        System.out.printf("Channel Tag : %s\n", result.getChannelTag());
      }
    }
  }
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