WMV to AIFF Converter
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Supports: WMV
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Need help?How to Convert WMV to AIFF Online
- Upload Your WMV File: Drag and drop or click "Add Files" to select a .wmv (Windows Media Video) file. Old camcorder captures, Windows Movie Maker exports, screen-recordings from earlier versions of Windows, and Microsoft webinar archives all work. Batch is supported.
- Pick Audio Channel: Choose Original to keep the source layout (usually stereo from WMV), Mono to fold both channels into one (smaller file, fine for speech and interviews), or Stereo to force two channels even if the source is mono.
- Set Audio Sample Rate: Pick from 8000 Hz up to 48000 Hz. Use 44100 Hz for CD-quality and music workflows, 48000 Hz for film and video sync, 22050 Hz or 16000 Hz to shrink speech-only files, or leave at the source rate to avoid resampling.
- Trim (Optional) and Convert: Open Trim and set a Start Time and Duration in seconds (12.5) or HH:MM:SS.sss format (00:01:30.500) to extract a specific segment. Click Convert. Files process in your browser session and download — no sign-up, no watermark.
Why Convert WMV to AIFF?
WMV (Windows Media Video) is Microsoft's video container introduced in 1999, built on the Advanced Systems Format (ASF) and pairing Windows Media Video with a Windows Media Audio (WMA) soundtrack. AIFF (Audio Interchange File Format) is Apple's uncompressed audio format from January 1988 — it stores raw PCM samples in big-endian byte order, the macOS counterpart to Microsoft's WAV. Converting WMV to AIFF strips the video, decodes the WMA soundtrack, and re-encodes it as uncompressed PCM that any Apple audio tool will open natively.
- Importing into Logic Pro, GarageBand, and Final Cut Pro — these Apple apps treat AIFF as a first-class native asset. Drag-in is instant; no transcoding warning, no compatibility import dialog. WMA inside WMV is not natively decodable in Logic and GarageBand.
- Pro Tools sessions on Mac — Pro Tools imports AIFF without re-encoding. Pull dialogue or room-tone from a WMV-source archive directly into a session bin.
- Mac CD-burning and disc-image workflows — the macOS audio CD pipeline (Music app, Toast, older iTunes) accepts AIFF natively. WMV needs an extra step.
- Archiving the audio of old Windows-era video recordings — webinars, family camcorder DVDs ripped to WMV, screencasts. Once the source is decoded to PCM, re-encoding losses stop accumulating.
- Cross-platform handoff — Windows production teams sending audio to Mac post-production. AIFF is the bit-identical Apple twin of WAV and avoids the WMA-on-Mac compatibility friction.
- Forensic and transcription work — speech-to-text engines and forensic tools usually want uncompressed PCM (AIFF or WAV) at 16 kHz or 22.05 kHz mono. Extract directly from a WMV deposition or interview without re-encoding through MP3.
WMV vs AIFF — Format Comparison
| Property | WMV | AIFF |
|---|---|---|
| Type | Video + audio container (ASF) | Audio only |
| Released | 1999 (Microsoft) | January 1988 (Apple) |
| Audio codec inside | WMA v1 / WMA v2 / WMA Pro (lossy) | Uncompressed PCM, 16-bit big-endian by default |
| Compression | Lossy on both audio and video | None (raw PCM) |
| Typical 1-min audio size | Depends on full file; the WMA track alone is roughly 0.5-1.5 MB | ~10 MB at 44.1 kHz 16-bit stereo |
| Native on | Windows + Windows Media Player | macOS + Apple audio apps |
| Best for | Windows-era video playback and archive | Music production, mastering, audio editing on Mac |
Sample Rate Quick Guide
| Sample Rate | Use case | Per-minute size (16-bit stereo AIFF) |
|---|---|---|
| 8000 Hz | Telephony, very low-bandwidth speech | ~1.8 MB |
| 16000 Hz | Speech recognition, transcription, voice notes | ~3.7 MB |
| 22050 Hz | Spoken-word podcasts, low-fi recordings | ~5.0 MB |
| 32000 Hz | FM-radio-quality speech and broadcast | ~7.3 MB |
| 44100 Hz | CD-quality music, default for most WMV audio tracks | ~10.1 MB |
| 48000 Hz | Film, video, broadcast sync (avoids resampling for video-source audio) | ~11.0 MB |
Frequently Asked Questions
Why is my AIFF much larger than the WMV it came from?
WMV's audio track is compressed with WMA (typically 64-192 kbps), while AIFF stores raw PCM (~1411 kbps at 44.1 kHz 16-bit stereo). Even though AIFF drops the video, the audio expands roughly 7-20x because PCM keeps every sample. A 50 MB WMV with mostly video can produce a 30 MB AIFF from just the audio. That's expected, not a bug — uncompressed audio is large by definition.
Why does the page not show codec or bitrate options?
AIFF is uncompressed PCM. There is no "encoder" to tune — the default codec is PCM 16-bit big-endian (PCM_S16BE) and the output is whatever sample rate and channel count you pick, written as raw samples. The audio quality is a function of source quality and your sample-rate choice, nothing else. If you need a smaller compressed output instead, see WMV to MP3.
Will the conversion improve audio quality vs the WMV source?
No. AIFF preserves the WMA-decoded audio bit-for-bit going forward, but it cannot reconstruct detail the WMA encoder already discarded. Treat AIFF as a clean, edit-friendly container for what's already in the WMV — useful because every subsequent edit is lossless, not because it adds fidelity. Resampling 44.1 kHz source up to 48 kHz also does not add information.
Should I pick AIFF or WAV?
They're functionally equivalent: both are uncompressed PCM. AIFF stores samples big-endian (Apple historical convention), WAV stores them little-endian (Intel convention). Logic Pro, GarageBand, Final Cut, and the macOS Finder all favor AIFF; Audacity, Audition, Pro Tools, and most Windows DAWs handle both. Use AIFF if your downstream tool is Apple-native; otherwise WMV to WAV is the equivalent route.
Can I extract a specific segment instead of the whole audio track?
Yes. Open the Trim section and enter a Start Time and Duration. Both accept seconds (90) or HH:MM:SS.sss (00:01:30.500). The output AIFF contains only the selected slice, which keeps file size proportionally smaller — useful for grabbing one answer from a long interview, one song from a recorded concert WMV, or a specific tutorial step from a screencast.
What sample rate should I pick if I'm not sure?
Match the source where possible to avoid resampling artifacts. Most WMV files from PC video capture, webinars, and consumer camcorders use 44.1 kHz or 48 kHz audio. If the WMV is destined to land in a video editor afterward, 48000 Hz is the safer pick (the video-industry default). For music or stand-alone listening, 44100 Hz is fine. Leave it on the source rate if you don't know.
Does AIFF support metadata like ID3 tags?
AIFF supports metadata via NAME, AUTH, COPY, and ANNO chunks, and modern macOS apps additionally write iTunes-style ID3v2 tags inside the AIFF container. WMV files often carry no track-level audio metadata to begin with (titles are typically file-level), so most converted AIFFs will need tags added by hand in Music.app, Logic, or a tag editor afterward.
What's the difference between AIFF and AIFC?
AIFF (.aiff or .aif) stores uncompressed PCM. AIFC, also called AIFF-C, is an extension that adds compression types like μ-law, A-law, and IMA ADPCM inside the same chunk structure. This page outputs standard uncompressed AIFF — open it on any Mac or with VLC/Audacity on Windows. If you have an AIFC source and want the lossless version, see AIFC to AIFF.
Will AIFF files play on Windows?
Yes. VLC, foobar2000, Audacity, Adobe Audition, and most modern Windows media players read AIFF. Windows Media Player support is patchy on older Windows versions, but third-party players are reliable. If your downstream consumers are Windows-only, WMV to WAV avoids any compatibility surprises since WAV is Windows-native.