Free online BWF to AIFF converter

Source format: BWF

BWF stands for Broadcast Wave Format. It is an extension of the standard WAV audio format used in professional audio production, broadcasting, film, and archiving. A BWF file usually contains uncompressed PCM audio plus extra metadata such as timecode, originator information, and production notes. Because of that metadata support, BWF is widely used in studios and broadcast workflows where accurate synchronization and documentation matter.

Target format: AIFF

AIFF stands for Audio Interchange File Format. It is a high-quality, uncompressed audio format developed by Apple and commonly used in music production, editing, and archival workflows, especially on macOS-based systems. AIFF files are broadly compatible with professional audio software and preserve audio quality because they typically store uncompressed PCM audio. Compared with BWF, AIFF is often chosen when you want a standard, widely supported interchange format without broadcast-specific metadata.

How to perform the conversion

The easiest way to convert .bwf to .aiff is with a desktop audio editor or converter that supports both formats. Audacity, FFmpeg, and many DAWs can do this reliably.

Using Audacity

1. Open Audacity and import the BWF file with File → Open or File → Import → Audio.
2. Check that the audio plays correctly and that the sample rate matches your project needs.
3. Choose File → Export → Export as AIFF.
4. Select the desired AIFF options if prompted, then save the file.

Using FFmpeg

1. Install FFmpeg if it is not already available on your system.
2. Run a command like ffmpeg -i input.bwf output.aiff.
3. If you want to preserve the original PCM audio without re-encoding, FFmpeg will typically copy the audio into AIFF-compatible PCM automatically when the source is uncompressed.

Using a DAW such as Pro Tools, Logic Pro, or Reaper

1. Import the BWF file into the project.
2. Verify the timeline position and metadata if they matter for your workflow.
3. Export or bounce the audio as AIFF using the program’s export function, often found under File → Export or File → Bounce.

You can also convert the file on 101convert.com for free, without installing any software.

Notes on quality, compatibility, or limitations

BWF to AIFF conversion is usually lossless if the source audio is uncompressed PCM, because both formats can store the same audio data. The main difference is the container and metadata support. During conversion, some BWF-specific metadata such as broadcast notes, timecode chunks, or originator fields may not carry over fully into AIFF, since AIFF does not use the same broadcast metadata structure.

If the BWF file contains compressed audio or unusual embedded metadata, compatibility may vary depending on the software used. Also, some applications may change the file’s timestamp or strip non-audio information. For best results, use a professional audio tool and verify the exported AIFF in your target application.