Convert MPEG to AIFF — Free Online Converter

MPEG files typically contain compressed audio encoded as MPEG Audio Layer 2 at bitrates between 128 and 384 kbps. AIFF (Audio Interchange File Format), developed by Apple in 1988 based on Electronic Arts' IFF format, stores uncompressed PCM audio at full CD quality (16-bit, 44.1 kHz) or higher. Converting MPEG to AIFF extracts the audio track into a lossless, studio-ready format.

Professional audio workflows on macOS — including Logic Pro, GarageBand, and Final Cut Pro — use AIFF as their native interchange format. If you have MPEG recordings from broadcasts, lectures, or digitized tapes and need to edit, mix, or master the audio professionally, AIFF provides an uncompressed baseline that prevents further generational loss during processing.

AIFF also supports embedded metadata chunks (including loop points and instrument data) that compressed formats lack, making it essential for sample library creation and music production. Extracting audio from MPEG to AIFF gives you a clean working copy that can be processed, effects-chained, and re-exported without accumulating compression artifacts.

FFmpeg discards the video stream and decodes the MP2 audio to raw PCM, then wraps it in an AIFF container. The command uses `-vn -acodec pcm_s16be -ar 44100 -ac 2` for CD-quality stereo output. AIFF uses big-endian byte order, which is the native format for macOS audio frameworks. For 24-bit output, use `pcm_s24be`.