Convert M4A to MP3 — Batch M4A to MP3 Converter

Voice memos from an iPhone, songs bought on iTunes, or audio exported from GarageBand usually land in your folder as M4A. That is fine on Apple devices, but plenty of car stereos, older MP3 players, and Windows software still expect MP3. Total Audio Converter converts M4A to MP3 in batch — point it at a folder and every file comes out as a universal MP3 that plays anywhere, with the ID3 tags carried over.

Quick answer: To convert M4A to MP3, install Total Audio Converter, select your M4A files, choose MP3 as the output format, set the bitrate, then click Start. The whole folder converts offline in one batch, with artist and album tags kept and no file-count limit.

M4A vs MP3: What Is the Difference?

M4A is an MPEG-4 audio container, most often holding AAC-encoded sound. It is the default format for iTunes purchases, Apple voice memos, GarageBand exports, and Siri recordings. At the same bitrate, AAC inside M4A sounds slightly better than MP3 — but support outside the Apple ecosystem is inconsistent.

MP3 is the oldest and most universally supported audio format. Every car stereo, MP3 player, smart speaker, and piece of Windows software plays MP3 without question. Converting M4A to MP3 trades a small amount of audio quality for guaranteed playback everywhere.

How to Convert M4A to MP3

• Step 1. Launch Total Audio Converter. The left panel shows a folder tree for quick navigation.
• Step 2. Browse to the folder that holds your M4A files.
• Step 3. Check the files you want, or click Check All to select the whole folder.
• Step 4. Click MP3 in the format toolbar at the top of the window.
• Step 5. Set the bitrate (320 kbps for near-lossless, 192 kbps for a balance, 128 kbps for smaller files) and choose a destination folder.
• Step 6. Press Start. Total Audio Converter writes an MP3 for every M4A file.

Each M4A file becomes a separate MP3. The original files are never modified, and ID3 tags — artist, album, track name, cover art — carry over automatically.

Command-Line Conversion

Total Audio Converter includes a command-line interface for converting M4A without the GUI. Example:

AudioConverter.exe C:\Music\*.m4a C:\Output\ -c MP3 -b 320

Wrap this in a .bat file or a scheduled task to convert M4A files automatically — useful for a watched folder that receives new voice memos or recordings.

Why Use Total Audio Converter?

True batch conversion. Convert one M4A file or an entire music library in a single run. No dragging files one by one.

Tags preserved. Artist, album, track title, and embedded cover art transfer automatically to the MP3 output.

Bitrate control. Choose the exact MP3 bitrate you need, from small 128 kbps files to near-lossless 320 kbps.

100% offline. Your audio files never leave your PC. Nothing is uploaded to a cloud server.

30+ formats. Besides MP3, convert M4A to WAV, FLAC, OGG, AAC, WMA, and more — all from the same program.

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Total Audio Converter Customer Reviews 2026

"Guests send voice memos from their iPhones as M4A and my editing software wants MP3. Converting a whole folder at once with the tags intact saves me from renaming and re-tagging every episode by hand."

Derek Holt Podcast Editor

"My students record practice sessions on iPads and email M4A files that half of them cannot play on their own laptops. Batch converting to MP3 before I hand feedback back has solved that completely."

Chloe Bennett Music Teacher

"Customers bring in USB drives full of iTunes M4A purchases that their head unit will not read. I convert the whole drive to MP3 in one pass now instead of file by file."

Ray Ortiz Car Audio Installer

M4A to MP3 — FAQ ▼