ToolMulti
Your everyday online toolkit

Audio Speed Changer

Online audio speed changer, changes playback speed without changing pitch (0.5x-8x). Supports batch processing and video upload with automatic audio extraction, customizable output format, quality, sample rate and channels.

Tool Guide

Overview

Audio Speed Changer tool. Upload audio or video files (video audio is extracted automatically). Customize output format (MP3/WAV/AAC/OGG/FLAC/M4A/AC3/Opus/PCM), quality (256K-48K), sample rate (8000-48000Hz) and channels (mono/stereo).

Usage

  1. Click or drag audio/video files into the page
  2. Adjust effect parameters
  3. Set output format, quality, sample rate and channels
  4. Click the action button to process
  5. Download individual files or a ZIP bundle