MP4 to AAC Converter
Convert MP4 files to AAC format in seconds with optimal quality and zero data retention.
拖放文件到此处或点击浏览
支持 JPG、PNG、WebP、MP4、MOV、MP3、PDF 等50多种格式，最大支持1GB
Format Comparison
MP4 vs AAC
Technical differences, compression algorithms, and core trade-offs between MP4 and AAC.
| Specification | MP4 | AAC |
|---|---|---|
| Full Name | MP4 Video | AAC Advanced Audio Coding |
| Compression Type | Lossy | Lossy |
| Transparency Support | No | No |
| Developer | ISO / IEC Moving Picture Experts Group | Bell Labs, Fraunhofer, Dolby, Sony, Nokia |
| Year Introduced | 2001 | 1997 |
MP4 Key Advantages
- ✓Universal playback across all smartphones, TVs, browsers, and operating systems
- ✓Excellent compression with H.264, H.265 (HEVC), and AV1
- ✓Streaming friendly (faststart)
AAC Key Advantages
- ✓Significantly better audio clarity than MP3 at identical bitrate
- ✓Standard audio codec for YouTube, Apple Music, and Bluetooth AAC
How It Works
How to Convert MP4 to AAC
Three straightforward steps to convert your file.
1. Select your MP4 files
Drag and drop your MP4 files into the upload box or click to select from your device.
2. Adjust settings (Optional)
Fine-tune optional parameters such as resolution, compression quality, or audio bitrate.
3. Download your AAC
Click "Convert Now" to process your files and instantly download the resulting AAC files.
Why Choose HyperHelix Convert
Why Choose HyperHelix Convert
Engineered for speed, uncompromised quality, and complete privacy.
Lightning-Fast Speed
High-speed conversions powered by dedicated multi-threaded processing servers.
Pristine Output Quality
State-of-the-art engines (Sharp, FFmpeg) preserve visual clarity and sound fidelity.
Batch Processing
Upload up to 30 files in parallel and download all results in a single ZIP archive.
100% Private & Secure
Encrypted via 256-bit SSL and permanently deleted from our servers after 2 hours.
Granular Controls
Fine-tune resolution, CRF, bitrate, sample rates, channels, and crop/trim bounds.
Works on All Devices
Zero installation required. Runs seamlessly in Safari, Chrome, Edge, and mobile browsers.
Related Tools
Related Converters for MP4 & AAC
Explore alternate target formats, reverse conversions, and specialized compression utilities.
Frequently Asked Questions
Frequently Asked Questions about MP4 to AAC
Clear answers to common questions about file conversions, options, and privacy.