Registry / workflow / concat-audio-buffers

concat-audio-buffers

library1.0.0jsnpmunverified

A basic audio buffer concatenator that works with Rollup. Version 1.0.0 (last released 2020) is stable but not actively maintained. It combines multiple AudioBuffers into one, with optional stereo conversion. Unlike more complex audio processing libraries, this package is minimal and focused solely on concatenation, making it suitable for simple audio merging tasks in bundlers like Rollup.

workflow

npm install concat-audio-buffers

github ↗package ↗

INSTALL

IMPORT

SIG · CONCAT-AUDIO-BUFFE

concat-audio-buffers

workflowjavascriptv1.0.0

Install

—

Import

—

Disk

—

Pass rate

0/ 6

Env Coverage0 / 6

glibc

18–22

musl

18–22

Install & Compatibility

Where this runs

tested against v? · npm install

Install × environment matrix

Each cell = how many times install + import succeeded across repeated harness runs. Partial = flaky.
glibc = Debian/Ubuntu slim · musl = Alpine Linux

musl

node 18–223 runs

build_error

glibc

node 18–223 runs

build_error

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

default

✓ import concatAudioBuffers from 'concat-audio-buffers'

✗ const concatAudioBuffers = require('concat-audio-buffers')

Package is ESM-only; CommonJS require may fail

concatAudioBuffers

✓ import concatAudioBuffers from 'concat-audio-buffers'

✗ import { concatAudioBuffers } from 'concat-audio-buffers'

Exported as default, not named export

type import

✓ import type { AudioBuffer } from 'web-audio-api-types'

✗ import { concatAudioBuffers } from 'concat-audio-buffers'

No TypeScript types included in the package; use ambient AudioBuffer type

Shows how to create two AudioBuffers, concatenate them with stereo conversion, and play the result as a WAV blob.

import concatAudioBuffers from 'concat-audio-buffers'; import toWav from 'audiobuffer-to-wav'; const audioCtx = new AudioContext(); const createBuffer = (freq, duration) => { const sampleRate = audioCtx.sampleRate; const buffer = audioCtx.createBuffer(1, sampleRate * duration, sampleRate); const data = buffer.getChannelData(0); for (let i = 0; i < data.length; i++) { data[i] = Math.sin(2 * Math.PI * freq * i / sampleRate); } return buffer; }; const buffers = [createBuffer(440, 1), createBuffer(880, 1)]; concatAudioBuffers(buffers, 2, (error, combinedBuffer) => { if (error) { console.error(error); } else { const blob = new Blob([toWav(combinedBuffer)], { type: 'audio/wav' }); const url = URL.createObjectURL(blob); const audio = new Audio(url); audio.play(); } });

Debug

Known issues

breakingCallback-based API; no Promise or async/await support

fix

Wrap the call in a Promise if async usage is needed: new Promise((resolve, reject) => concatAudioBuffers(buffers, channels, (err, result) => err ? reject(err) : resolve(result)));

affects: 1.0.0

deprecatedNo updates since 2020; may not work with newer bundlers or Node.js versions

fix

Consider using modern alternatives like 'audio-buffer-utils' or implement your own with AudioBuffer.copyToChannel

affects: 1.0.0

gotchaThe function does not validate input; passing non-AudioBuffer objects or incorrect channel count may cause silent failures

fix

Validate buffers array and channel number before calling

affects: 1.0.0

gotchaThe callback receives (error, combinedBuffer) but error is null on success; ensure error-first callback pattern

fix

Check if error is truthy before using combinedBuffer

affects: 1.0.0

Errors

Common errors & fixes

module not found: can't resolve 'concat-audio-buffers'

Missing installation or incorrect bundler configuration for ESM

fix

Run 'npm install concat-audio-buffers' and ensure your bundler supports ESM imports

TypeError: concatAudioBuffers is not a function

Using CommonJS require() instead of ESM import

fix

Change to 'import concatAudioBuffers from 'concat-audio-buffers''

Uncaught TypeError: Cannot read properties of undefined (reading 'length')

Passing undefined or non-array as first argument

fix

Ensure buffers is an array of AudioBuffer objects

Upgrade

Version history

1.0.0latest on npm

Audit

Dependencies

No dependency data recorded yet.

Agent activity

19 hits · last 30 days

node

OpenAI (training)

Resources

githubhttps://github.com/jimkang/concat-audio-buffers ↗

packagehttps://www.npmjs.com/package/concat-audio-buffers ↗