# MP3 to M4A Converter

Convert MP3 audio to M4A (AAC) with bitrate, resampling, and channel options

> Canonical page: https://elysiatools.com/en/tools/mp3-to-m4a

- **Category:** Media

- **Keywords:** mp3, m4a, aac, audio, converter

## Overview

Easily convert your MP3 audio files to M4A (AAC) format with our high-quality online converter, offering precise control over bitrate, sample rate, and channel settings.

## Inputs

- **Audio File** (file): Select the source audio file
- **Bitrate (kbps)** (select): Choose target bitrate for output
- **Sample Rate** (select): Output sample rate
- **Audio Channels** (select): Select output channel count
- **Keep Metadata (when available)** (checkbox): Preserve title/artist tags when possible

## When to use

- When you need to prepare audio files for Apple device compatibility.
- When you want to optimize audio file size while maintaining high sound quality.
- When you need to adjust audio parameters like sample rate or mono/stereo channels for specific playback requirements.

## How it works

- Upload your MP3 file using the file selector.
- Adjust your preferred bitrate, sample rate, and channel settings in the configuration panel.
- Click the convert button to process your file and download the resulting M4A audio.

## Use cases

- Optimizing music libraries for iPhone or iPad playback.
- Converting high-bitrate recordings into smaller, web-friendly M4A files.
- Standardizing audio files to specific sample rates for professional or creative projects.

## Frequently asked questions

### What is the difference between MP3 and M4A?

M4A (AAC) generally provides better sound quality at lower bitrates compared to MP3 and is the native format for Apple devices.

### Can I convert multiple files at once?

This tool currently supports processing one audio file at a time.

### Will I lose audio quality during conversion?

By selecting a high bitrate like 256 or 320 kbps, you can maintain near-original audio quality during the conversion process.

### Is my metadata preserved?

Yes, the tool includes an option to keep existing metadata tags like title and artist when available.

### Is there a file size limit?

Yes, the maximum file size for uploads is 50 MB.

## Related tools

- [Batch Audio Converter](https://elysiatools.com/en/tools/audio-batch-converter): Convert multiple audio files between different formats like MP3, WAV, FLAC, AAC, OGG, Opus with quality settings and batch processing
- [Audio Codec Swap](https://elysiatools.com/en/tools/audio-codec-swap): Change the codec of an audio file within a chosen output format
- [Audio Format Converter](https://elysiatools.com/en/tools/audio-converter): Convert audio files between different formats like MP3, WAV, FLAC, AAC, OGG with quality settings and volume adjustment
- [M4A to MP3 Converter](https://elysiatools.com/en/tools/m4a-to-mp3): Convert M4A audio (AAC/ALAC) to MP3 with bitrate, resampling, and channel controls
- [Audio Melody Contour Extractor](https://elysiatools.com/en/tools/audio-melody-contour-extractor): Extract a dominant melody path from audio and export MIDI, note events, a pitch contour, SVG, and JSON in one ZIP.
- [Audio to Multitrack MIDI (Draft)](https://elysiatools.com/en/tools/audio-to-multitrack-midi): Split a full mix into stems (drums/bass/other/vocals) and transcribe each to MIDI — a multi-track starting point for transcription
- [Audio to Text Transcriber (AI)](https://elysiatools.com/en/tools/audio-to-text-transcriber): Transcribe speech from audio (wav/mp3/m4a/flac/ogg/webm/aac) to text, SRT, VTT or JSON using the grok-stt AI model. Up to 10 minutes.
- [Audio Set CBR](https://elysiatools.com/en/tools/audio-set-cbr): Re-encode audio using Constant Bitrate (CBR)

## Samples

- [Copyright-Free M4A Audio Samples](https://elysiatools.com/en/samples/m4a-samples): Apple iTunes compatible M4A audio samples with AAC encoding, optimized for quality and file size balance
- [Copyright-Free MP3 Audio Samples](https://elysiatools.com/en/samples/mp3-samples): Collection of royalty-free audio samples for testing and development purposes including nature sounds, meditation music, and ambient audio
- [Copyright-Free FLAC Audio Samples](https://elysiatools.com/en/samples/flac-samples): Lossless FLAC audio samples for testing and development, mirrored from MP3 set with nature sounds and meditation music
- [Copyright-Free WAV Audio Samples](https://elysiatools.com/en/samples/wav-samples): Uncompressed PCM WAV audio samples for testing and development, mirrored from MP3 set with nature sounds and meditation music