WTV to AAC Converter

How to Convert WTV to AAC Online

1. Upload Your WTV File: Drag and drop your .wtv recording or click "+ Add Files" to select. Batch uploads work — queue an entire season of Windows Media Center captures in one pass.
2. Pick Quality Preset and Bitrate: Default is Highest. Drop to High or Medium for smaller files, or open Custom Bitrate to set Constant Bitrate (CBR) — useful for streaming — or Variable Bitrate (VBR) for better quality at the same average size. Common AAC targets: 96 kbps for speech, 128 kbps for transparent music, 192-256 kbps when you want headroom for re-encoding.
3. Set Audio Channel, Sample Rate, or Trim (Optional): Audio Channel defaults to Original; switch to Mono to halve size on talk-radio-style captures or Stereo to flatten 5.1 broadcast mixes. Audio Sample Rate offers 8000-48000 Hz (use 44100 Hz for music, 48000 Hz to match the broadcast). Trim lets you cut commercials by start time and duration.
4. Convert and Download: Click Convert. The audio track is demuxed from the WTV container and re-encoded to AAC server-side — no Windows Media Center install required, no watermark, no sign-up.

Why Convert WTV to AAC?

WTV (Windows Recorded TV Show) is the container Windows Media Center wrote when it captured live TV, replacing the older DVR-MS format with the TV Pack 2008 update for Windows Vista and shipping as the default in Windows 7's bundled Media Center. Microsoft discontinued Media Center with Windows 10 in May 2015, so today's .wtv files are effectively orphan archives that few players touch natively. Stripping the audio to AAC turns a 1-4 GB recording into a 50-200 MB file that plays on every iPhone, Android, browser, car stereo, and smart speaker built since the mid-2000s.

• Archive talk shows and news interviews — A two-hour news block recorded at MPEG-2 video bitrates is roughly 3 GB; the same content as 128 kbps AAC stereo is around 115 MB and stays understandable on a phone speaker.
• Salvage recordings from a retired Media Center PC — Once you migrate off Windows 7, .wtv playback gets awkward (VLC handles many but not DRM-flagged streams). Converting to AAC removes the Media Center dependency entirely.
• Feed podcast workflows — AAC drops straight into Apple Podcasts (M4A wrapper), Spotify for Podcasters, and Audacity for editing; WTV does not.
• Cut down storage on radio-broadcast captures — Many over-the-air TV channels carry MPEG-1 Layer II audio at 192-384 kbps. Re-encoding to AAC 128 kbps VBR usually preserves perceived quality at a third of the size.
• Make clips shareable — AAC plays in every modern browser via the HTML5 audio element and on every iOS/Android device without a codec download; .wtv does neither.
• Match streaming-platform specs — YouTube, Apple Music, and most podcast hosts ingest AAC natively; uploading WTV requires you to convert first.

WTV vs AAC — Format Comparison

AAC Bitrate Quick Guide

Pick a bitrate against the source audio in your WTV. Most broadcast TV ships either MPEG-1 Layer II stereo at 192-384 kbps or Dolby Digital AC-3 5.1 at ~384-448 kbps; re-encoding to AAC can roughly halve the bitrate at equivalent perceived quality because AAC is a more efficient codec.

Frequently Asked Questions

Why is my WTV file refusing to convert — does it have DRM?

Windows Media Center recordings of cable or premium channels were often flagged as copy-protected (DRM). Those files only play back on the original recording PC and cannot be legally converted by any third-party tool, online or desktop. If the converter fails or returns silence, check the file's properties in Windows: a "Protected" label means DRM. Over-the-air ATSC captures from a free TV tuner are usually unencrypted and convert without issue.

What audio codec is inside a typical WTV file?

WTV uses MPEG-2 for video and either MPEG-1 Audio Layer II or Dolby Digital AC-3 for audio, depending on what the broadcaster sent. The converter demuxes whichever audio stream is present and re-encodes it to AAC. If your recording carries 5.1 AC-3, you can downmix to stereo (or mono) using the Audio Channel option for portable playback.

Should I pick CBR or VBR AAC?

Variable Bitrate (VBR) gives you better quality at the same average file size because it spends more bits on complex moments and fewer on silence. Constant Bitrate (CBR) is preferable when the file will be streamed over a fixed-bandwidth connection or chunked for HLS, since each segment is predictable in size. For archival, pick VBR around 128-192 kbps; for streaming, pick CBR at your bandwidth ceiling.

How small will my file get?

A one-hour HD WTV recording is typically 1.5-2.5 GB. Extracting just the audio at 128 kbps AAC stereo lands around 57 MB — roughly a 30-50x size reduction. At 64 kbps mono (fine for spoken-word) you land near 29 MB. The video portion is discarded entirely when you convert to AAC.

Can I trim out commercials before converting?

Yes. The Trim control lets you set a start time and duration in HH:MM:SS.mmm format, so you can drop the pre-roll, ad break, or post-credits. If you need finer multi-segment editing (multiple ad pods inside one show), convert first then use audio-cutter to remove individual sections.

Will the converted AAC play on my iPhone?

Yes. AAC has been the iTunes Store and Apple Music default since 2003 and is natively decoded on every iPhone, iPad, Mac, Apple TV, and HomePod. Drop the file into the Files app, Voice Memos, or any podcast app and it plays without conversion. If you need an .m4a extension instead of .aac, use WTV to M4A — the codec is identical, only the container wrapper differs.

What's the difference between converting to AAC and to MP3?

AAC at 128 kbps generally sounds better than MP3 at 128 kbps because it uses a more modern psychoacoustic model — that's why Apple, YouTube, and most streaming services standardized on it. MP3 still wins on universal hardware support (a 2005 car stereo will play MP3 but might choke on AAC). If you need maximum compatibility with old hardware, use WTV to MP3 instead.

Can I keep the video too?

The AAC output is audio-only by design. If you want to keep the picture and just modernize the container (so it plays on Mac, iPhone, or in a browser), use WTV to MP4 — that re-wraps the MPEG-2 stream into an MP4 with AAC audio, leaving you a video file instead of a pure audio track.

Are my recordings uploaded anywhere permanent?

No. Files are processed in your browser session and deleted from the server after conversion completes. There is no account, no log of filenames retained, and no marketing email — close the tab when you're done and the working copies are gone.