In which file did you encounter the issue?
https://github.com/GoogleCloudPlatform/java-docs-samples/blob/master/speech/grpc/src/main/java/com/examples/cloud/speech/StreamingRecognizeClient.java
Did you change the file? If so, how?
No
Describe the issue
In StreamingRecognizeClient.java need to replace getAudioInputLine() with audio stream PCM samples coming from browser microphone through websocket.