How do I convert audio to MP3 on Android?

MP3 (MPEG-1 or MPEG-2 Audio Layer III) is a popular digital audio encoding format commonly used to compress audio files. It reduces the size of audio files by removing certain audio information that is not easily perceptible to the human ear. Converting audio files to MP3 reduces their file size while still maintaining reasonable audio quality. This makes MP3 files convenient for downloading and streaming music over the internet.

There are several benefits to converting audio files to MP3 format on Android devices:

  • MP3 files take up much less storage space than uncompressed formats like WAV or AIFF. This allows you to store more music on your Android device.
  • Smaller MP3 file sizes make sharing music quicker and easier. Transferring MP3s uses less mobile data.
  • MP3 is supported by almost all media players and devices. Converting to MP3 makes an audio file universally compatible.
  • MP3 compression reduces bandwidth needed for streaming audio over the internet. This avoids buffering issues.
  • The quality loss from MP3 encoding is minimal. For most listeners, MP3 audio sounds nearly as good as CD quality.

In summary, converting audio to MP3 on your Android device allows you to store more music while retaining reasonable audio fidelity. The compressed MP3 format enables quick sharing and smooth streaming or downloading. This guide will walk through the main methods for converting audio files to MP3 using common Android tools.


Before converting audio files to MP3 format on your Android device, you need to make sure your device meets the minimum requirements. According to the Android developer documentation (Source), your Android device needs to be running Android 5.0 or newer in order to support MP3 file playback and conversion. Older versions of Android had issues with playing back MP3 files reliably.

So the key prerequisite is:

  • Android device running Android 5.0 or newer

As long as your Android device meets this requirement, you should be able to convert other audio formats like WAV, FLAC, M4A to MP3 using apps on your device without any playback issues after conversion.

Use a File Converter App

One of the easiest ways to convert audio files to MP3 on Android is by using a dedicated file converter app. There are many great options available on the Google Play Store that can handle a variety of audio formats and provide a simple interface for converting files.

Some top options include:

  • Video to MP3 – Video to Audio – This popular app allows converting video files like MP4 to MP3 as well as many other audio formats. It provides options to cut, merge, and edit files.
  • Audio Converter – Supports converting between MP3, M4A, WAV, FLAC, WMA, OGG, ACC, and other formats. Provides basic editing tools.
  • MediaConverter – An all-in-one media conversion app with support for audio, video, documents, ebooks, and images. Can batch convert multiple files.

These apps provide an ads-supported free version along with paid pro versions. The pro versions remove ads and unlock additional features like faster conversion speeds, more output format options, and advanced editing tools.

To use a converter app, first download and install it on your Android device. Then open the app, navigate to the audio file you want to convert, select MP3 as the output format, and tap convert. The MP3 file will be saved to your device storage.

Use Online File Converters

One convenient way to convert audio files to MP3 format on Android is by using free online converter websites. Services like and allow you to easily convert between many different audio formats without needing to download any software.

To use these websites, simply go to their homepage on your Android device’s web browser. You can then upload the audio file you want to convert directly from your phone. Once uploaded, select MP3 as the output format and click the convert button. The website will process your file and provide a download link for the MP3 audio. This method works for converting common formats like WAV, FLAC, M4A and more to MP3.

The advantage of using online converters is convenience – you don’t have to install any apps and can quickly get an MP3 version of your audio file. However, you are relying on an internet connection and upload speeds may be slow for large files. Some websites also limit the file size or number of conversions for free accounts. But for occasional audio format conversion needs, online converters offer a fast and easy option on Android.

Use VLC Media Player

VLC media player is a popular, free and open source cross-platform media player that can also convert between various audio and video formats, including converting to MP3 on Android devices.

To use VLC to convert audio files to MP3 on your Android device, first download and install the VLC app from the Google Play Store. Once installed, open the VLC app and tap on the three dots icon in the top right corner to access the menu.

Select “Convert” from the menu, then tap on “Add” and select the audio file you want to convert. Under “Profile” choose “Audio – MP3” as the output format. You can optionally adjust the audio quality settings as desired. Finally, tap “Start” to begin the MP3 conversion process.

The main advantage of using VLC is that it is free, widely used and reliable. The conversion can be done directly on your Android device without needing a computer. However, VLC has limited options compared to more full-featured converters. Overall, VLC provides a simple way to quickly convert audio files to MP3 format on Android.

Use Windows Media Converter

Windows Media Converter is a free tool from Microsoft that can convert various audio file formats like WMA, WAV, MP3, and more (source). For Android 10 and above, you can install Windows Media Converter from the Microsoft Store and use it to convert files on your device.

To convert to MP3 using Windows Media Converter on Android:

  1. Install Windows Media Converter from the Microsoft Store if you don’t already have it.
  2. Open the app and click “Add” to select the audio files you want to convert.
  3. Click the dropdown next to each file and choose “MP3” as the output format.
  4. Click “Convert” to start the conversion process.
  5. The MP3 files will be saved in the same folder as the original files once complete.

Windows Media Converter makes it easy to bulk convert multiple audio files to MP3 format on an Android device. Just make sure to install the app from the Microsoft Store first.

Convert Using Command Line

One of the most powerful ways to convert audio files on Android is by using the command line and Termux. Termux is an Android terminal emulator and Linux environment app that allows you to run Linux commands and utilities on an Android device.

To convert audio files using Termux, you will first need to install Termux from the Google Play Store. Once Termux is installed, open the app and run the following commands to install ffmpeg, a popular open source audio and video conversion tool:

“`pkg install ffmpeg“`

This will install ffmpeg in Termux. Next, you need to navigate to the folder where your audio file is located from within Termux. For example, if your file is stored in Internal Storage/Music:

“`cd /storage/emulated/0/Music“`

Finally, use ffmpeg to convert your audio file to MP3. The basic syntax is:

“`ffmpeg -i input.m4a output.mp3“`

So for example:

“`ffmpeg -i song.m4a song.mp3“`

This will convert song.m4a to an MP3 file called song.mp3. You can also specify options like bitrate quality. Reference the ffmepg documentation for additional options and customization.

The command line method gives you full control and flexibility for audio conversion on Android. With just a few commands in Termux, you can convert to MP3 and other formats.


When converting audio to MP3 on Android, there are a few key considerations:

File Size

MP3 is a “lossy” format, which means audio quality is reduced to shrink file size. The bitrate determines quality – higher bitrates mean better quality and larger files. For Android, 128-320kbps provides a good balance. Compare the file size of the original vs MP3 file to judge the compression level. Going below 128kbps is not recommended as quality will be significantly impacted (Source).

Audio Quality

Converting to MP3 can degrade audio quality due to lossy compression. Listen to samples of the MP3 file on different devices to ensure acceptable quality. Some frequencies may get filtered out in the encoding process, so compare against the original. If quality is unacceptable, try a higher bitrate (Source).


MP3 is supported by most modern devices. However, confirm compatibility if playing on older devices, niche products or uploading to restrictive platforms. MP3 may not be supported in certain professional or audiophile equipment (Source).


Here are some solutions for common issues that may arise when converting audio to MP3 format on Android:

If you get an error message like “Unsupported file format” when trying to play an MP3 file, make sure the file extension is .mp3 and not .m4a or another audio format. Some Android apps may not recognize the file if the extension doesn’t match the encoding.

Try using a different app for playback if one app can’t open your MP3 files. Apps like Plex or Samsung Music may have better MP3 support.

If converting with VLC, check the audio output settings and try toggling “Use legacy audio resampler” on or off under Tools > Preferences. This legacy setting can help resolve playback issues.

Make sure your Android device storage isn’t full or nearly full. Audio conversion can fail if there’s insufficient storage space.

Try re-encoding the source audio at a lower bitrate if the files are converting but the quality is poor. A lower bitrate often means smaller file sizes.

As a last resort, convert to a different format like M4A or WAV if you’re unable to get good MP3 conversions. While not ideal, alternative formats may work better on some Android devices.


In summary, there are several straightforward methods for converting audio files to MP3 format on Android devices. Using a dedicated file converter app is often the simplest approach, allowing you to quickly select files and convert them with just a couple taps. Online converters offer a convenient web-based option as well, though they require an internet connection and uploading your files. For advanced audio conversion, VLC Media Player and Windows Media Converter provide robust tools and settings right on your device. And if you’re comfortable with the command line, FFmpeg can batch convert files. Consider audio quality, file sizes, and convenience when choosing your method.

The key tips to keep in mind are: use a trusted app and carefully adjust output settings, try both local apps and web converters to compare, install VLC Media Player for advanced options, and stick to reputable sites if using online converters. Converting to MP3 can allow you to save storage space while retaining key audio quality. With the right Android tools, you can easily turn your audio files into MP3s to enjoy on the go.

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