WaveToBlobService

The WaveToBlobService class is responsible for converting audio data (in Blob format) to a WAV file. It supports encoding in both 16-bit PCM and 32-bit float formats and includes functionality for audio resampling.

Features

• Converts audio Blob data to WAV format.
• Supports both 16-bit PCM and 32-bit float encoding.
• Handles audio resampling when needed.
• Provides helper functions for encoding audio data and managing WAV file headers.

Installation

To use this service, import it into your project and call the relevant methods.

Example

import { waveToBlobService } from './path/to/WaveToBlobService';

async function convertBlobToWav(blob: Blob) {
    const wavBlob = await waveToBlobService.getWaveBlob(blob, true);
    console.log(wavBlob);
}

BlobCombinator

The BlobCombinator class combines multiple audio Blob objects into a single audio file. It uses the crunker library to concatenate and optionally download the combined audio. Additionally, it handles audio resampling to ensure a consistent sample rate of 44.1 kHz for all input audio buffers.

Features

• Combines multiple audio Blob objects into a single audio Blob.
• Supports resampling of audio buffers to ensure consistency in sample rate (default is 44.1 kHz).
• Optionally downloads the resulting audio file.
• Uses the crunker library for audio manipulation.

Installation

First, install crunker in your project:

npm install crunker