WMA to AIFF Converter

How to Convert WMA to AIFF Online

1. Upload Your WMA File: Drag and drop or click "Choose Files" to add one or more .wma files. Batch is supported — queue an album, a meeting archive, or a folder of voice memos in one pass.
2. Pick Audio Channel: Default is Original (preserves the source mono/stereo layout). Pick Stereo to expand a mono WMA into a two-channel AIFF for music-production sessions, or Mono to collapse a stereo voice recording and roughly halve the AIFF file size.
3. Set Audio Sample Rate (Optional): Default is Original. Choose 44100 Hz for CD-quality mastering, 48000 Hz for video and broadcast workflows (Logic Pro, Pro Tools, Final Cut), 22050 Hz or 16000 Hz to shrink voice-only recordings, or step down to 8000 Hz for telephony-grade speech. Resampling cannot recover frequencies WMA already discarded — match or stay close to the source rate.
4. Trim and Convert: Under Trim, switch from Unchanged to enter a Start Time and Duration (seconds or HH:MM:SS.sss) to cut a clip during conversion. Click Convert. Files process in your browser session — no sign-up, no watermark.

Why Convert WMA to AIFF?

WMA (Windows Media Audio) is Microsoft's proprietary lossy codec introduced in 1999, native to Windows but not natively supported by macOS, QuickTime, Logic Pro, GarageBand, Final Cut Pro, or iMovie. AIFF (Audio Interchange File Format) is Apple's uncompressed container developed in 1988, storing raw PCM data — the same uncompressed quality as Red Book CD audio. Once your WMA decodes into AIFF, it stops losing quality with every edit and slots cleanly into Apple's audio toolchain.

• Import into Logic Pro and Pro Tools — Logic Pro's documented import list is WAV, AIFF, CAF, SDII, MP3, Apple Lossless, and AAC. WMA is not on it. Converting to AIFF is the canonical workaround Apple support threads recommend.
• GarageBand and Final Cut Pro projects — both ship with AIFF as a first-class format. Drag the converted AIFF directly into a track or timeline; no codec plug-in needed.
• CD mastering on macOS — AIFF at 44.1 kHz / 16-bit stereo is the Red Book CD-compatible source. Burn from Music.app or Toast without an intermediate render.
• Lossless archival from a Windows source — once a WMA decodes into AIFF, every subsequent trim, EQ pass, or normalize stays bit-perfect. WMA re-encodes lose quality each save.
• Cross-platform handoff — sending source audio to a colleague on macOS who can't open .wma. AIFF opens in QuickTime, Music.app, Logic, Audacity, and Adobe Audition out of the box.
• Voice memo and meeting transcription — many Windows recorders default to WMA. Converting to AIFF makes the file usable in Apple-native transcription apps and Mac-side editors.

WMA vs AIFF — Format Comparison

AIFF Sample Rate Quick Guide

xconvert outputs AIFF as PCM signed 16-bit big-endian (PCM_S16BE), which is the historic AIFF default that every Mac audio app reads natively.

Frequently Asked Questions

Why isn't there a compression or bitrate option for AIFF?

AIFF is an uncompressed PCM container by design. The output is a raw stream of 16-bit big-endian samples, so there's no codec to tune. File size is governed by sample rate × channels × bit depth × duration — that's why a 3-minute 44.1 kHz stereo AIFF is always around 30 MB regardless of how the source WMA was encoded. If you want a smaller lossless file, try WMA to FLAC (compresses to about 50-60% of the AIFF size with zero quality loss).

Will converting WMA to AIFF improve the audio quality?

No. WMA is lossy, so any data the encoder discarded is gone for good. Converting to AIFF preserves the current quality but cannot recover lost frequencies, transients, or stereo detail. The real value is that once you're in AIFF, no further editing step will degrade the audio — re-saving WMA after edits triggers another lossy pass.

How much bigger will the AIFF file be than the WMA?

Roughly 5-15x larger depending on the WMA bitrate. A 3 MB WMA at 128 kbps becomes about 30 MB as 44.1 kHz / 16-bit stereo AIFF. The AIFF size is fixed by sample rate and duration, not the source bitrate. One minute of CD-quality AIFF is about 10 MB; one minute at 48 kHz stereo is about 10.6 MB.

Can Logic Pro, GarageBand, or Pro Tools play WMA directly?

No. Logic Pro's supported import formats are WAV, AIFF, CAF, SDII, MP3, Apple Lossless, and AAC; GarageBand mirrors that list. Pro Tools also lacks native WMA decoding. Converting to AIFF (or WAV) is the standard workaround documented across Apple Community and Logic forums.

Does AIFF play on Windows?

Yes. AIFF plays in VLC, foobar2000, MediaMonkey, Audacity, Adobe Audition, Reaper, and FL Studio on Windows. It's just less common than WAV in Windows-native workflows, so if your collaborator is on Windows you may prefer WMA to WAV instead — same uncompressed PCM, different container.

What sample rate should I pick when converting voice recordings vs music?

For music, match the source if you know it, otherwise use 44100 Hz. For voice, drop to 22050 Hz or 16000 Hz — WMA voice recordings rarely contain useful audio above 8 kHz, so a lower AIFF sample rate cuts the file size meaningfully without audible loss. For dialog destined for a video edit, use 48000 Hz to match standard film and broadcast workflows.

Will tags, album art, and metadata transfer from WMA to AIFF?

Basic metadata (title, artist, album) is preserved when present in the WMA header, but AIFF's metadata support is thinner than ID3 — embedded album art and extended fields may not survive. If you need full tagging, convert to WMA to MP3 (ID3v2) or to FLAC (Vorbis comments) instead.

Are my WMA files uploaded to a server?

No. xconvert processes files in your browser session — your WMA never leaves the page in a way that's retained. There's no account requirement, no watermark, and no quality cap on the output.

Can I convert WMA Lossless or WMA Pro files too?

Yes. The decoder handles WMA v1, v2, WMA Pro, and WMA Lossless. Output is the same uncompressed PCM AIFF either way — converting from WMA Lossless gives you a bit-perfect copy of the original master, while converting from lossy WMA captures the audio at its current (already-degraded) quality.