Video Not Playing After SpeechRecognizer - ios

Question

Video not playing after SpeechRecognizer. Not getting any error just stuck on AVPlayerViewController. I have stopped speechRecognizer also. then after I am trying to play video. The video perfectly plays before speechRecognizer.
Maybe that possible speechRecognizer is not stopping by this code. So, Maybe the problem is in stopRecording().
#IBAction func btnRecord(_ sender: Any) {
player.pause()
player.seek(to: CMTime.init(value: 0, timescale: player.currentTime().timescale))
if self.audioEngine.isRunning {
self.audioEngine.stop()
self.recognitionRequest?.endAudio()
}
else {
try! self.startRecording()
}
}
private func startRecording() throws {
// Cancel the previous task if it's running.
if let recognitionTask = recognitionTask {
recognitionTask.cancel()
self.recognitionTask = nil
}
let audioSession = AVAudioSession.sharedInstance()
try audioSession.setCategory(AVAudioSession.Category.record, mode: .default, options: [])
try audioSession.setMode(AVAudioSession.Mode.measurement)
try audioSession.setActive(true, options: .notifyOthersOnDeactivation)
recognitionRequest = SFSpeechAudioBufferRecognitionRequest()
let inputNode = audioEngine.inputNode
//else { fatalError("Audio engine has no input node") }
guard let recognitionRequest = recognitionRequest else { fatalError("Unable to created a SFSpeechAudioBufferRecognitionRequest object") }
// Configure request so that results are returned before audio recording is finished
recognitionRequest.shouldReportPartialResults = true
// A recognition task represents a speech recognition session.
// We keep a reference to the task so that it can be cancelled.
recognitionTask = speechRecognizer.recognitionTask(with: recognitionRequest) { result, error in
var isFinal = false
if let result = result {
self.text = result.bestTranscription.formattedString
self.lblText.text = self.text
isFinal = result.isFinal
}
if error != nil || isFinal {
self.audioEngine.stop()
inputNode.removeTap(onBus: 0)
self.recognitionRequest = nil
self.recognitionTask = nil
}
}
let recordingFormat = inputNode.outputFormat(forBus: 0)
inputNode.installTap(onBus: 0, bufferSize: 1024, format: recordingFormat) { (buffer: AVAudioPCMBuffer, when: AVAudioTime) in
self.recognitionRequest?.append(buffer)
}
audioEngine.prepare()
try audioEngine.start()
}
private func stopRecording() {
audioEngine.stop()
recognitionRequest?.endAudio()
if let recognitionTask = recognitionTask {
recognitionTask.cancel()
self.recognitionTask = nil
}
}
#IBAction func btnDonePopup(_ sender: Any) {
self.stopRecording()
self.playVideo()
}

Answer 1

Please change audioSession.setCategory to default value:
if error != nil || isFinal {
self.audioEngine.stop()
inputNode.removeTap(onBus: 0)
self.recognitionRequest = nil
self.recognitionTask = nil
do {
try audioSession.setCategory(.soloAmbient, mode: .measurement, options: [])
} catch { }
}