Capacitor Voice Recorder

tchvu3/capacitor-voice-recorder

Capacitor plugin for simple voice recording (For Capacitor 3)

Maintainers

Maintainer	GitHub
Avihu Harush	tchvu3

Installation

npm install --save capacitor-voice-recorder
npx cap sync

ios note

Make sure to include the NSMicrophoneUsageDescription key, and a corresponding purpose string in your app's Info.plist

Configuration

No configuration required for this plugin.

Supported methods

Name	Android	iOS	Web
canDeviceVoiceRecord	✅	✅	❌
requestAudioRecordingPermission	✅	✅	❌
hasAudioRecordingPermission	✅	✅	❌
startRecording	✅	✅	❌
stopRecording	✅	✅	❌

Explanation

• canDeviceVoiceRecord - this function has been updated for Capacitor version 3 and will now ALWAYS return a promise that resolves to {"value": true}. it has not been removed completely to not break old implementations.

---

• requestAudioRecordingPermission - if the permission has already been provided then the promise will resolve with {"value": true}, otherwise the promise will resolve to {"value": true} / {"value": false} based on the answer of the user to the request.

---

• hasAudioRecordingPermission - will resolve to {"value": true} / {"value": false} based on the status of the permission.

---

• startRecording - if the app lacks the required permission then the promise will reject with the message "MISSING_PERMISSION". if there's a recording already running then the promise will reject with "ALREADY_RECORDING", and if other apps are using the microphone then the promise will reject with "MICROPHONE_BEING_USED". in a case of unknown error the promise will reject with "FAILED_TO_RECORD".

---

• stopRecording - will stop the recording that has been previously started. if the function startRecording() has not been called beforehand the promise will reject with: "RECORDING_HAS_NOT_STARTED". in case of success, you will get the recording in base-64, the duration of the recording in milliseconds, and the mime type.

Usage

// only 'VoiceRecorder' is mandatory, the rest is for typing
import { VoiceRecorder, VoiceRecorderPlugin, RecordingData, GenericResponse } from 'capacitor-voice-recorder';

// will ALWAYS print true (do not use this method, it has not been removed to keep old implementations from breaking)
VoiceRecorder.canDeviceVoiceRecord().then((result: GenericResponse) => console.log(result.value))

/** 
* will prompt the user to give the required permission, after that
* the function will print true / false based on the user response
*/
VoiceRecorder.requestAudioRecordingPermission().then((result: GenericResponse) => console.log(result.value))

// will print true / false based on the status of the recording permission
VoiceRecorder.hasAudioRecordingPermission.then((result: GenericResponse) => console.log(result.value))

/**
* In case of success the promise will resolve with {"value": true}
* in case of an error the promise will reject with one of the following messages:
* "MISSING_PERMISSION", "ALREADY_RECORDING", "MICROPHONE_BEING_USED" or "FAILED_TO_RECORD"
*/
VoiceRecorder.startRecording()
.then((result: GenericResponse) => console.log(result.value))
.catch(error => console.log(error))

/**
* In case of success the promise will resolve with:
* {"value": { recordDataBase64: string, msDuration: number, mimeType: string }},
* the file will be in *.acc format.
* in case of an error the promise will reject with one of the following messages:
* "RECORDING_HAS_NOT_STARTED" or "FAILED_TO_FETCH_RECORDING"
*/
VoiceRecorder.stopRecording()
.then((result: RecordingData) => console.log(result.value))
.catch(error => console.log(error))

Playback

To play the recorded file you can use plain javascript:

const base64Sound = '...' // from plugin
const audioRef = new Audio(`data:audio/aac;base64,${base64Sound}`)
audioRef.oncanplaythrough = () => audioRef.play()
audioRef.load()