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Top 8 MP3/Audio Speed Changers for PC/Smartphone

by Christine Smith • 2024-01-11 10:28:57 • Proven solutions

If you're an audiophile, then the chances are that you need an audio speed changer at some point. For example, you might not realize the importance of this utility program until you download a 2-hour audiobook or music mix. Or, you may want to adjust the pitch and tempo of the audio file. Either way, below are several MP3 speed changer apps compatible with your computer and smartphone.

Part 1: 4 Best Audio Speed Changers Online (Desktop & Mobile)

In this section, I will furnish you with the best online apps to speed up or slow down audio on mobile phones or computers. Just ensure you have a reliable internet connection for a smooth experience.

1. AudioTrimmer

As the name suggests, AudioTrimmer is an online toolkit for trimming and splitting audio files with precision. With this mobile-friendly and straightforward app, users can quickly edit audio formats like MP3, M4A, WMA, OGG, FLAC, and so on. Apart from converting and trimming audio, AudioTrimmer can also speed up audio or slow it down. Users can speed up audio by up to 2x (double) the standard speed or slow it down by up to 0.5x (half) the usual rate. However, users can't speed up files more than 20MB per session. Follow these steps:

Step 1. Launch AudioTrimmer on your web browser and then click Choose File. Your local media library will open, where you can upload an audio file to speed up.

Step 2. Now open the Tempo menu and choose the playback increase speed you'll use.

speed up video with AudioTrimmer

Step 3. Finally, press the Change Speed button to start processing your edited audio file. Download it and enjoy.

2. Audio Speed Changer

Audio Speed Changer is another excellent app to speed up or slow down a song online without compromising quality. Here, music lovers can upload sound files from local storage and cloud services like OneDrive and Dropbox. That said, users can add audio formats like AAC, MP3, OGG, FLAC, among others. Then, you can change the audio playback speed by increasing or decreasing the percentage and adjust the audio pitch. But sadly, this audio speed changer online can only export audio to MP3 and M4A formats.

Step 1. Launch Audio Speed Changer and then press Choose File to launch your local storage and upload an audio file.

Step 2. Enter the playback speed percentage. For example, if you enter 200%, it means you'll be doubling the speed. On the other hand, choosing 50% means slowing down the audio speed by half.

Audio Speed Changer

Step 3. Open the Output Format menu and select MP3 or M4A as the target format.

Step 4. Finish up by pressing Convert now. Wait for the file to finish processing and download it to your local storage.

3. MP3Cut

If the first two online audio speed changers don't impress you, use this MP3 speed changer instead. MP3Cut is a popular audio trimmer that's famous for supporting conversion between 400+ file formats. It can trim audio with precision and increase the playback speed by up to 3x the average rate. Also, users can slow down audio by up to 0.5x, which is half the average speed. Interestingly, this app also allows you to cut audio, adjust the volume, shift music pitch, and enhance quality with the equalizer. Best of all, users can export audio to MP3, M4R, M4A, FLAC, and WAV.

Step 1. Launch MP3Cut and then press Open File to upload a music track. You can also upload from Dropbox, Google Drive, or straight from a URL link.

Step 2. After uploading the audio successfully, press the Change Speed button and drag the Speed slider towards the Rabbit to increase the speed. You can also move it towards the Tortoise to decrease the audio playback speed. Either way, press the "play" button to preview your audio.


Step 3. Do you want to trim and split audio? Click the Trim button to cut the audio by entering a start/stop time. You can also move the trimming handles inwards to set a new playback duration. In addition, click the Audio button to adjust the volume.

Step 4. Lastly, select and output format before pressing Save to begin encoding your speeded-up audio.

4. Audio Tool Set

Finally, use Audio Tool Set to adjust the speed of your audio file with a simple click. The user interface is clean and well-arranged despite a few pesky adverts. That aside, Audio Tool Set allows users to upload files up to 50MB before adjusting the playback speed by merely moving the slider to the left (accelerate) or right (decelerate). Users can increase the audio speed by up to 2x the initial rate or decrease it by up to 0.5x the original speed. Also, you can remove or preserve the audio pitch. Here are the steps:

Step 1. Launch Audio Tool Set and then drag-and-drop your audio file on the workspace. Alternatively, press the Browse computer button to open the local folders and add an audio file.

Step 2. Next, drag the audio speed slider to the right or left to adjust the playback speed. Remember to click the "play" icon to choose the perfect playback speed for your audio.

Audio Tool Set

Step 3. Lastly, check or uncheck the Preserve pitch box before clicking Submit to begin processing your file.

Note: One thing you'll definitely like about these online audio speed changers is that they are entirely free to use and support multiple formats. But that doesn't make them flawless. For example, these apps can't speed up or slow down audios offline. Also, users can't edit popular video formats like MP4, MOV, VOB, etc. Another thing, they don't support multiple audio format outputs.

Fortunately, you can use Wondershare UniConverter to accomplish these tasks and many more on your Mac or Windows computer. With this program, creators can add any audio file and convert it to MP3, M4A, OGG, FLAC, AU, and many others. You can also edit audio by trimming, splitting, and adjusting the audio volume. What's more, users can quickly extract audio from videos.

Key features:

  • It supports 1000+ file formats like MP3, M4A, MP2, WAV, FLAC, MP4, MOV, etc.
  • Convert audio to all traditional audio formats.
  • Edit audio by trimming, splitting, adjusting volume, removing background noise, and compressing.
  • Extract lossless audio from all standard video formats.
  • It runs smoothly on macOS and Windows 10/8/7.


Part 2: 4 Excellent MP3/Audio Speed Changer Apps

Now without wasting much time, let's swoop in and discuss another four audio speed changer apps for Android and iOS.

1. Music Speed Changer

Music Speed Changer is an Android pitch and speed-changing app for your audio files. This app allows users to change the audio pitch without necessarily sacrificing speed and vice-versa. Alternatively, users can change the speed and pitch concurrently. Apart from adjusting the song speed, Music Speed Changer can also reverse audio by playing it backward and applying music effects like reverb, echo, flanger, etc. Also, this app comes with an 8-band advanced EQ to balance and preamp audio. Moreover, users can export audio to WAV or MP3.

Music Speed Changer


  • Apply audio effects like reverb and echo.
  • Change song speed by up to 500% (5x) the actual rate.


  • Only MP3 and WAV exports.

2. Audipo: Audio Speed Changer

Audipo is a top-rated MP3 speed changer for Android and iOS. This software boasts a sleek UI that supports any audio format thrown at it. Quickly moving forward, Audipo can increase the audio playback speed by up to 4x the average rate or decrease it by up to 0.25x. Like Music Speed Changer, Audio can change the playback speed without shifting the pitch, which is a significant plus. But as good as this audio editor comes, the free version is quite limited. For instance, you must upgrade your plan to export audio to MP3 and WAV. The premium plan also comes with pitch shift controls, a playing playlist, and zero ads.

Audipo: Audio Speed Changer


  • It supports multiple audio formats.
  • Increases audio speed by up to 4x.


  • Limited free plan.

3. Audio Speed Changer Lite

Audio Speed Changer Lite is an iOS and Android app for adjusting the playback speed of your sound file without hurting the pitch. This app comes with a fully-fledged, modern-style UI tailor-made for adjusting the audio pitch and tempo. Using it is quick and straightforward as users just need to upload a file from local storage or Dropbox and change the pitch and speed. Besides that, users can adjust the audio speed and pitch independently. And yes, you can mark a specific part of the audio that you want to retouch.

Audio Speed Changer Lite


  • Cross-platform support.
  • Change speed and pitch independently.


  • Only export to WAV and MP3.

4. TimePitch

TimePitch is a superb pitch and speed changer for iPhones and iPads. This app features a smooth music player that lets you enjoy any music file on the go. After installing this lightweight app, you can import songs from your media library and adjust the pitch and tempo using the sliders provided. But that's just about it, as TimePitch doesn't feature additional audio editing capabilities. Nonetheless, it's a helpful free app to use.



  • Sleek and smooth UI.
  • Excellent music player.


  • It lacks essential audio editing tools.

Part 3. Comparison between the 8 audio speed changer apps

Software Platform Supported formats Pricing Additional features
AudioTrimmer Online 10+ common audio formats. Free, open-source app.

· Audio trimmer.

· MP3 converter.

· Extract audio from video.

· MP3 metadata editor.

Audio Speed Changer Online 10+ standard audio formats. Free, open-source app.

· Upload online, Dropbox, and OneDrive files.

· Change the audio pitch in semitones.

· Increase speed by up to 4x (400%) the normal speed.

· Export audio to MP3 or M4A.

MP3Cut Online 400+ file formats, including all common audio formats. Free, but the premium plan costs $5/month.

· Trim and merge audio.

· Audio and video converter.

· Reverse audio playback.

· Voice recorder.

Audio Tool Set Online MP3, WAV, FLAC, and OGG. Free, open-source app.

· Ringtone maker for iPhone.

· Tens of free audio effects.

· Cut, split, and merge audio.

· Extract audio from video.

Music Speed Changer Android Compatible with most audio formats. Free, with $2/item in-app purchases.

· Change song pitch with 24 semitones.

· Music looper.

· Reverse music (play backward).

· 8-band graphic equalizer.

Audipo Android/iOS Upload the most common audio files. Free with $2 to $14/item in-app purchases.

· Audiobook player.

· Radio player.

· Pitch shift control.

· Organize music in playlists and albums.

Audio Speed Changer Lite Android/iOS Various file formats, including MP3, M4A, OGG, etc. Free but with a $3 full version.

· Change music pitch and tempo.

· Music looper.

· Volume amplifier.

· Reduce or remove vocals from music.

TimePitch iOS Supports most standard sound formats. Free with in-app purchases.

· Cool music player.

· Customizable pitch and tempo.

· Supports background music playback.


Up to this point, you should easily choose the perfect audio speed changer for your needs. Although the online apps are free and feature-rich, they contain pesky adverts that may distract your editing sessions. On the other hand, most of the dedicated mobile apps have pretty expensive in-app purchases. So, install UniConverter and edit your video and audio files with minimal fuss.

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Christine Smith

Christine Smith

chief Editor

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