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How can I use audio file as audio source in SpeechRecognition in Python?

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问题 I used speech_recognition.AudioFile in Python 3.6 , but this error was indicated: AttributeError: module 'speech_recognition' has no attribute 'AudioFile' This is my code: #!/usr/bin/env python3 import speech_recognition as sr # obtain path to "english.wav" in the same folder as this script from os import path AUDIO_FILE = path.join(path.dirname(path.realpath(__file__)), "english.wav") # AUDIO_FILE = path.join(path.dirname(path.realpath(__file__)), "french.aiff") # AUDIO_FILE = path.join(path

Error when installing a tap on audio engine input node

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问题 whenever the code reaches inputNode.installTap(onBus: 0, bufferSize: 1024, format: recordingFormat) {[weak self] (buffer:AVAudioPCMBuffer, when:AVAudioTime) , app is crashing with following error Terminating app due to uncaught exception 'com.apple.coreaudio.avfaudio', reason: 'required condition is false: format.sampleRate == hwFormat.sampleRate' I tired removing taps before adding another and I'm making sure I'm not adding more than one tap. what is weird is that the app is working fine

Error when installing a tap on audio engine input node

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how to change the pitch of recorded audio getting me following error

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问题 Terminating app due to uncaught exception 'com.apple.coreaudio.avfaudio', reason: 'required condition is false: node != nil' AVAudioFile *file=[[AVAudioFile alloc] initForReading:_recordedvoice error:nil]; AVAudioFormat *format=file.processingFormat; AVAudioFrameCount capacity= (AVAudioFrameCount)file.length; AVAudioPCMBuffer *buffer=[[AVAudioPCMBuffer alloc] initWithPCMFormat:format frameCapacity:capacity]; [file readIntoBuffer:buffer error:nil]; [playerNode scheduleBuffer:buffer

how to play sound with AVAudioPCMBuffer

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问题 I Cannot play sound with AVAudioPCMBuffer (though I could play with AVAudioFile). I got this error. ERROR: AVAudioBuffer.mm:169: -[AVAudioPCMBuffer initWithPCMFormat:frameCapacity:]: required condition is false: isCommonFormat here is my code below, and I'd really appreciate for your help. import UIKit import AVFoundation class ViewController: UIViewController { let audioEngine: AVAudioEngine = AVAudioEngine() let audioFilePlayer: AVAudioPlayerNode = AVAudioPlayerNode() override func

how to play sound with AVAudioPCMBuffer

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I Cannot play sound with AVAudioPCMBuffer (though I could play with AVAudioFile). I got this error. ERROR: AVAudioBuffer.mm:169: -[AVAudioPCMBuffer initWithPCMFormat:frameCapacity:]: required condition is false: isCommonFormat here is my code below, and I'd really appreciate for your help. import UIKit import AVFoundation class ViewController: UIViewController { let audioEngine: AVAudioEngine = AVAudioEngine() let audioFilePlayer: AVAudioPlayerNode = AVAudioPlayerNode() override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view, typically from a nib.

SWIFT - Is it possible to save audio from AVAudioEngine, or from AudioPlayerNode? If yes, how?

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问题 I've been looking around Swift documentation to save an audio output from AVAudioEngine but I couldn't find any useful tip. Any suggestion? Solution I found a way around thanks to matt's answer. Here a sample code of how to save an audio after passing it through an AVAudioEngine (i think that technically it's before) newAudio = AVAudioFile(forWriting: newAudio.url, settings: nil, error: NSErrorPointer()) //Your new file on which you want to save some changed audio, and prepared to be bufferd