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Convert AAC to AIFF Online for Free

Fast, Free, Secure & Simple

Change My File is the ultimate AAC to AIFF converter for users who want a fast, secure, and free way to convert AAC files to AIFF online. Whether you're a music professional, audio engineer, or casual user, our tool makes audio file conversion effortless.

Convert AAC to AIFF Online – No Software Needed

If you're looking for a quick way to convert AAC to AIFF without downloading software, you’re in the right place. Our online converter runs directly in your browser—just upload your AAC file, and within seconds, you'll get a high-quality AIFF file ready for download.

  1. No registration required
  2. 100% Free to use
  3. High-quality output
  4. Safe & secure file processing

Why Convert AAC to AIFF?

While AAC (Advanced Audio Coding) files are compressed for smaller sizes, AIFF (Audio Interchange File Format) offers uncompressed, lossless audio—perfect for professional use, music editing, or high-fidelity playback.

Benefits of Using Our AAC to AIFF Converter

  1. Preserve original audio quality
  2. Fast AAC to AIFF conversion
  3. Secure & private — files auto-deleted after processing
  4. Access from any device, anytime

How to Convert AAC to AIFF in 3 Simple Steps

  1. Upload your AAC file – Drag and drop or use the upload button.
  2. Click ‘Convert’ – Let our tool process your file instantly.
  3. Download AIFF file – Get your high-quality AIFF audio in seconds.

Free AAC to AIFF Conversion Tool with No Limits

You can convert multiple AAC files to AIFF for free without limits or watermarks. Our converter supports batch processing, so you can handle multiple files at once.

Compatible With All Major Platforms

Our converter works perfectly on:

  1. Windows & Mac
  2. iOS & Android
  3. Chrome, Firefox, Safari & more

Frequently Asked Questions (FAQs)

Is it safe to convert AAC to AIFF using this tool?

Absolutely. All uploads are encrypted, and your files are automatically deleted from our servers after conversion.

Can I convert large AAC files?

Yes! Our free AAC to AIFF converter handles large files efficiently with no quality loss.

Do I need to install anything?

No software or plugins are required. All conversions happen in the cloud.

Try the Best Free AAC to AIFF Converter Today

Don’t waste time with complicated software. Change My File offers the best free online AAC to AIFF converter with lightning-fast performance and studio-quality results. Try it now and experience the easiest way to convert AAC to AIFF for free.

AAC Technical Specifications

File extension.aac
File categoryAudio
Stands forAdvanced Audio Coding
DeveloperBell Labs, Fraunhofer IIS, Dolby Laboratories, LG Electronics, Sony Corporation (Combined Efforts)
OverviewAAC is the descendant of the MP3 format. It provides better sound quality using a similar bit rate as of MP3. Besides this, it uses lossy data compression but it has high standards of audio quality than of MP3. We can find this format on a number of platforms and Apple's iTunes is one such example that uses it as default audio format. Size of its file is much smaller which is approximately one-tenth of MP3 file. It also neglects the redundant information that is not even processed by the human ear and is often not noticed. Although, this format was introduced as MPEG-2 Part-7, yet, standardization was done by ISO/IEC as a part of the MPEG-2 and MPEG-4 families. It is also termed as MPEG-2 NBC (Non- Backward Compatible) because it is incompatible with MPEG-1 audio formats i.e. MP1, MP2, MP3.
Technical descriptionModified discrete cosine transform(MDCT) algorithm is used by AAC which ensures that it provides high compression efficiency. MPEG-2 PART-7 has three default profiles namely Low Complexity (LC), Main Profile (Main) and Scalable Sample Rate (SSR). These profiles come with Perceptual Noise Substitution which enhances coding efficiency and provides excellent audio quality. Furthermore, it uses Auditory Masking to ignore the surplus information. This codec has come up with advanced features which are not available in the predecessor. These include additional sample rates ranging from 8 to 96 kHz, 48 Channels, better efficiency with a simpler filter bank, higher coding efficiency for stationary signals and higher coding accuracy for transient signals.
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AIFF Technical Specifications

File extension.aiff
File categoryAudio
Stands forAudio Interchange File Format
DeveloperApple Inc.
OverviewAIFF is an uncompressed audio file format. It keeps the original file without losing any data. This is the main reason why these files require more storage space. One minute-long audio requires nearly 10MB space. It is widely used by Apple Macintosh/Apple Mac and also musicians use this format for their recordings. Exact copies of music can be formed using this format with the added benefit of sound quality, which is well maintained in these files. Though it follows lossless format(not compressed), yet, there is another variant of it named AIFF-C developed by Apple afterwards and it is the compressed version. The only disadvantage of these files is a large size.
Technical descriptionMostly AIFF files have uncompressed Pulse Code Modulation(PCM) data which means at regular intervals the amplitude of the analog signal is reduced from continuous-time signal to a discrete-time signal and every sample is quantized to the closest value. An AFF file has various parts which are known as chunks and each chunk has its own ID which is mostly termed as FourCC. This ID is a sequel of four bytes which distinctly identify data formats. The several chunks found in this format are Common, Sound data, Marker, Instrument, Comment, Name, Author, Copyright, Annotation, Audio recording, MIDI data, Application, and ID3. The first two chunks are essential every time(Common chunk and Sound data Chunk). Lastly, these files have the capability of storing Metadata in five chunks-Name, author, comment, annotation and copyright. Metadata delivers information about the data that is data about data.
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AAC To Other Extensions