tiny_recordrtc/convert_to_mp3

Description:

  • Convert audio to MP3.

Source:
Copyright:
  • Meirza
License:
  • http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later

Convert audio to MP3.

Members

(static, constant) convertMp3

Description:

  • Main function to handle the entire process of converting an audio file to MP3 format.

Source:

Main function to handle the entire process of converting an audio file to MP3 format.

Example
const mp3Data = await convertMp3('audio-source.wav', 192);
window.console.log(mp3Data); // Logs the ArrayBuffer with MP3 data.

Methods

(inner) convertAudioBuffer(lamejs, channels, sampleRate, bitRate, left, rightopt) → {Blob}

Description:

  • Converts an AudioBuffer to MP3 format using lamejs.

Source:
Parameters:
Name Type Attributes Default Description
lamejs Object

The lamejs library object.
channels number

The number of audio channels (1 for mono, 2 for stereo).
sampleRate number

The sample rate of the audio (e.g., 44100 Hz).
bitRate number

The bitrate (in kbps) to encode the MP3.
left Int16Array

The PCM data for the left channel.
right Int16Array <optional>
 null

The PCM data for the right channel (optional for stereo).
Returns:
  • A Blob containing the MP3 audio data.
Type
Blob

(inner) extractPCM(audioBuffer) → {Array.<Int16Array>}

Description:

  • Extract Pulse Code Modulation (PCM) data from an AudioBuffer to get raw channel data.

Source:
Parameters:
Name Type Description
audioBuffer AudioBuffer

The AudioBuffer containing the audio data.
Returns:

The PCM data for each channel.

Type
Array.<Int16Array>

(async, inner) getAudioBuffer(sourceUrl) → {Promise.<AudioBuffer>}

Description:

  • Fetches and decodes the audio data from a given URL into an AudioBuffer.

Source:
Parameters:
Name Type Description
sourceUrl string

The URL of the source audio file.
Returns:
  • A promise that resolves with the decoded AudioBuffer object.
Type
Promise.<AudioBuffer>