Audio Recorder 시작하기

이 가이드는 Capacitor Audio Recorder 플러그인을 애플리케이션에 통합하는 과정을 안내합니다.

설치

npm을 사용하여 플러그인을 설치합니다:

npm install @capgo/capacitor-audio-recorder
npx cap sync

iOS 구성

Info.plist에 다음을 추가합니다:

<key>NSMicrophoneUsageDescription</key>
<string>This app needs access to the microphone to record audio</string>

Android 구성

AndroidManifest.xml에 다음 권한을 추가합니다:

<uses-permission android:name="android.permission.RECORD_AUDIO" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

Web 구성

플러그인은 MediaRecorder API를 사용합니다. 프로덕션에서는 HTTPS가 필요합니다.

기본 사용법

플러그인 가져오기

import { AudioRecorder } from '@capgo/capacitor-audio-recorder';

권한 요청

const requestPermission = async () => {
  const permission = await AudioRecorder.requestPermissions();
  console.log('Permission status:', permission.recordAudio);
};

녹음 시작

const startRecording = async () => {
  await AudioRecorder.startRecording();
  console.log('Recording started');
};

녹음 중지

const stopRecording = async () => {
  const result = await AudioRecorder.stopRecording();
  console.log('Recording path:', result.filePath);
  console.log('Duration:', result.duration);
};

녹음 일시 중지/재개

const pauseRecording = async () => {
  await AudioRecorder.pauseRecording();
  console.log('Recording paused');
};

const resumeRecording = async () => {
  await AudioRecorder.resumeRecording();
  console.log('Recording resumed');
};

상태 가져오기

const getStatus = async () => {
  const status = await AudioRecorder.getStatus();
  console.log('Is recording:', status.isRecording);
  console.log('Duration:', status.currentTime);
};

완전한 예제

다음은 완전한 음성 녹음기 구현입니다:

import { AudioRecorder } from '@capgo/capacitor-audio-recorder';

class VoiceRecorder {
  private isRecording = false;
  private isPaused = false;
  private recordingPath: string | null = null;

  async initialize() {
    const permission = await AudioRecorder.checkPermissions();

    if (permission.recordAudio !== 'granted') {
      const requested = await AudioRecorder.requestPermissions();

      if (requested.recordAudio !== 'granted') {
        throw new Error('Microphone permission denied');
      }
    }
  }

  async startRecording() {
    try {
      await AudioRecorder.startRecording();
      this.isRecording = true;
      this.isPaused = false;
      console.log('Recording started');
    } catch (error) {
      console.error('Failed to start recording:', error);
      throw error;
    }
  }

  async pauseRecording() {
    if (!this.isRecording || this.isPaused) {
      return;
    }

    try {
      await AudioRecorder.pauseRecording();
      this.isPaused = true;
      console.log('Recording paused');
    } catch (error) {
      console.error('Failed to pause recording:', error);
      throw error;
    }
  }

  async resumeRecording() {
    if (!this.isRecording || !this.isPaused) {
      return;
    }

    try {
      await AudioRecorder.resumeRecording();
      this.isPaused = false;
      console.log('Recording resumed');
    } catch (error) {
      console.error('Failed to resume recording:', error);
      throw error;
    }
  }

  async stopRecording() {
    if (!this.isRecording) {
      return null;
    }

    try {
      const result = await AudioRecorder.stopRecording();
      this.isRecording = false;
      this.isPaused = false;
      this.recordingPath = result.filePath;

      console.log('Recording stopped');
      console.log('File path:', result.filePath);
      console.log('Duration:', result.duration, 'seconds');

      return result;
    } catch (error) {
      console.error('Failed to stop recording:', error);
      throw error;
    }
  }

  async getCurrentStatus() {
    const status = await AudioRecorder.getStatus();
    return {
      isRecording: status.isRecording,
      duration: status.currentTime,
      isPaused: this.isPaused
    };
  }

  formatDuration(seconds: number): string {
    const mins = Math.floor(seconds / 60);
    const secs = Math.floor(seconds % 60);
    return `${mins}:${secs.toString().padStart(2, '0')}`;
  }

  getRecordingPath(): string | null {
    return this.recordingPath;
  }
}

// Usage
const recorder = new VoiceRecorder();

// Initialize
await recorder.initialize();

// Start recording
await recorder.startRecording();

// Pause
await recorder.pauseRecording();

// Resume
await recorder.resumeRecording();

// Stop and get result
const result = await recorder.stopRecording();
console.log('Recording saved:', result?.filePath);

고급 구성

오디오 품질 구성

const startHighQualityRecording = async () => {
  await AudioRecorder.startRecording({
    format: 'aac',           // aac, mp3, or wav
    sampleRate: 44100,       // 44100 Hz (CD quality)
    channels: 2,             // Stereo
    bitRate: 320000          // 320 kbps
  });
};

음성용 구성

const startVoiceRecording = async () => {
  await AudioRecorder.startRecording({
    format: 'aac',
    sampleRate: 16000,       // 16 kHz (voice optimized)
    channels: 1,             // Mono
    bitRate: 64000           // 64 kbps
  });
};

UI 통합 예제

class AudioRecorderUI {
  private recorder: VoiceRecorder;
  private updateInterval: any;

  constructor() {
    this.recorder = new VoiceRecorder();
  }

  async init() {
    await this.recorder.initialize();
    this.setupEventListeners();
  }

  setupEventListeners() {
    const recordButton = document.getElementById('record-btn');
    const pauseButton = document.getElementById('pause-btn');
    const stopButton = document.getElementById('stop-btn');

    recordButton?.addEventListener('click', () => this.handleRecord());
    pauseButton?.addEventListener('click', () => this.handlePause());
    stopButton?.addEventListener('click', () => this.handleStop());
  }

  async handleRecord() {
    await this.recorder.startRecording();
    this.startDurationUpdate();
    this.updateUI('recording');
  }

  async handlePause() {
    const status = await this.recorder.getCurrentStatus();

    if (status.isPaused) {
      await this.recorder.resumeRecording();
      this.updateUI('recording');
    } else {
      await this.recorder.pauseRecording();
      this.updateUI('paused');
    }
  }

  async handleStop() {
    const result = await this.recorder.stopRecording();
    this.stopDurationUpdate();
    this.updateUI('stopped');

    if (result) {
      this.showRecordingResult(result);
    }
  }

  startDurationUpdate() {
    this.updateInterval = setInterval(async () => {
      const status = await this.recorder.getCurrentStatus();
      this.updateDurationDisplay(status.duration);
    }, 100);
  }

  stopDurationUpdate() {
    if (this.updateInterval) {
      clearInterval(this.updateInterval);
    }
  }

  updateDurationDisplay(duration: number) {
    const display = document.getElementById('duration');
    if (display) {
      display.textContent = this.recorder.formatDuration(duration);
    }
  }

  updateUI(state: 'recording' | 'paused' | 'stopped') {
    // Update button states, colors, etc.
    console.log('UI state:', state);
  }

  showRecordingResult(result: any) {
    console.log('Recording complete:', result);
    // Show playback UI, save options, etc.
  }
}

// Initialize UI
const ui = new AudioRecorderUI();
ui.init();

모범 사례

1. 조기 권한 요청: 녹음 UI를 표시하기 전에 권한을 확인하세요
2. 중단 처리: 전화 통화, 알람 등이 녹음을 중단할 수 있습니다
3. 저장 공간 관리: 공간을 절약하기 위해 오래된 녹음을 정리하세요
4. 피드백 제공: 녹음 상태, 재생 시간 및 파형을 표시하세요
5. 기기에서 테스트: 시뮬레이터/에뮬레이터는 제한된 오디오 지원을 제공합니다

일반적인 문제

권한 거부됨

const handlePermissionDenied = async () => {
  const permission = await AudioRecorder.checkPermissions();

  if (permission.recordAudio === 'denied') {
    alert('Microphone permission is required to record audio. Please enable it in Settings.');
  }
};

녹음 중단됨

// Handle app going to background
document.addEventListener('pause', async () => {
  const status = await recorder.getCurrentStatus();
  if (status.isRecording) {
    await recorder.pauseRecording();
    // Notify user
  }
});

저장 공간 관리

const cleanupOldRecordings = async () => {
  // Implement cleanup logic
  // Delete recordings older than X days
  // Or keep only last N recordings
};

다음 단계

• 전체 메서드 문서는 API Reference를 참조하세요
• 고급 사용법은 예제 앱을 확인하세요
• 완전한 구현 예제는 튜토리얼을 참조하세요