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.aiff

AIFF Audio

Audio

AIFF stores chunked audio and is often used for PCM production material. Related AIFF-C can carry compressed audio. AIF/AIFF usually serve the same purpose. Inspect encoding, rate, bit depth and channels; renaming does not create WAV.

What it is used for
Waveform audio for editing/production
What the file contains
Binary data
All sections, questions and sources

Content reviewed： · Editor：Kai

Opening steps

Choose your environment or purpose to see its steps.

Windows / Mac / Linux: inspect playback

Playback also depends on the encoded codec.

  1. Choose a copy through Open File in a compatible player such as VLC.
  2. Inspect sample rate, bit depth and channels.
  3. Listen at the beginning, middle and end; check duration and whether audio is missing from one side.
Mobile / sharing: create a compatible copy

Check the receiving device’s accepted format.

  1. Check AIFF support and size limits; decide whether a smaller AAC or similar copy is needed.
  2. If needed, create a separately named sharing copy using a compatible local converter.
  3. Test volume, duration, channels and title display in the actual destination.
Editing / storage: import into an audio application

Editing compressed audio does not restore missing original information.

  1. Import AIFF into a DAW/editor and inspect the project’s sample rate.
  2. Inspect silence and clipping in the editing copy and make only the required adjustments.
  3. Compare the output with the original and preserve the imported source.

Menu labels and support vary by app, OS and version. Preserve the original before making changes.

Troubleshooting by symptom

  • Speed/pitch changes: inspect sample-rate interpretation and import conversion.
  • AIFC fails: inspect compressed-codec support.
  • Different export sound: check bit-depth changes, gain, dither and channels.
  • Playback is fast/high-pitched: check how the sample rate was interpreted.
  • Fails in certain apps: distinguish AIFF/AIFF-C and inspect the encoded audio.
  • Information is missing after WAV conversion: compare audio separately from markers and metadata.

AIFF → PCM WAV / FLAC

  1. Record codec, rate and bit depth, then import.
  2. Export a separate copy at the required precision and compare duration, samples/channels.
  3. Compare duration and representative passages after export, and check channels and tags.

Gain/rate changes alter samples; equivalent audio does not guarantee retained tags/markers.

Compare matching audio settings

Suffixes alone do not determine quality. Compare codec, sample rate, depth and channels.

Avoid unnecessary repeated resampling during editing and match final delivery requirements.

Source for these steps：Library of Congress · AIFF (Audio Interchange File Format) / VideoLAN · VLC Features

Delivery channels and metadata

Inspect left/right channels and any mono conversion, and listen for clipping.

For workflows using markers, loops or titles, verify their survival and retain the original.

Source for these steps：Library of Congress · AIFF (Audio Interchange File Format) / VideoLAN · VLC Features

Related-format differences

Related-format differences
FormatMain roleSelection notes
AIFF / AIFAudio editing / deliveryCheck encoding and metadata
WAVStores PCM and other audioMatch settings at conversion
AAC / MP3Smaller sharing copyLossy encoding changes

Handling and security

Review recording rights/private speech and edit a copy.

Questions and answers

Are AIF and AIFF different?

Usually alternative suffixes; still inspect encoding.

Always uncompressed PCM?

Inspect the encoding, including AIFF-C variants.

Is WAV export always unchanged?

It depends on precision, rate, processing and metadata.

Are AIF and AIFF different?

They generally denote the same format; still inspect the encoded audio.

Does converting to WAV reduce quality?

Distinguish preserving equivalent PCM settings from resampling or changing depth.

Format facts: name, steward and MIME type
Formal name
Audio Interchange File Format
Steward / specification
Apple
MIME type
Depends on the producer or server; an extension alone does not establish a MIME type.

Primary and official sources