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Upload your .wtv file by dragging it into the upload area or clicking to browse.

Choose your output settings. The default settings work great for most files.

Click Convert and download your .m4a file when it's ready.

Om konvertering fra WTV til ALAC

WTV (Windows TV) files were created by Windows Media Center's TV tuner recording feature, capturing over-the-air and cable television broadcasts with MPEG-2 or H.264 video, AC3 or AAC audio, and embedded EPG metadata including program titles, descriptions, channel information, and content ratings. The format's NTFS-like container structure was engineered for real-time recording from TV tuner hardware. ALAC (Apple Lossless Audio Codec) is Apple's lossless compression format, reducing audio file sizes by 40-60% compared to raw PCM while preserving bit-perfect quality.

Windows Media Center shipped with Windows Vista through Windows 8.1, and was available as an add-on for Windows 10 before being fully discontinued. The millions of WTV recordings created during this era now sit in personal archives, increasingly difficult to access as Windows Media Center fades from supported platforms.

Hvorfor konvertere WTV til ALAC?

Extracting audio from WTV recordings to ALAC produces losslessly compressed files that play natively on Apple devices — iPhone, iPad, Mac, Apple TV, and HomePod. This is the ideal path for users migrating their media libraries to the Apple ecosystem, particularly for recordings containing music, concerts, or high-quality audio worth preserving at full fidelity.

ALAC offers approximately 50% compression over uncompressed formats like AIFF or WAV, making it a storage-efficient choice for archiving broadcast audio. Apple Music and iTunes handle ALAC natively, allowing extracted TV audio to integrate seamlessly into existing music libraries.

Vanlige bruksområder

Archiving concert and music show audio from WTV recordings in Apple's lossless format for iTunes library integration
Extracting high-fidelity spoken-word content from educational TV recordings for Apple Podcasts-style consumption
Migrating Windows Media Center audio archives to the Apple ecosystem with zero quality compromise
Creating lossless audio backups of irreplaceable TV recordings (live events, discontinued shows) in a well-supported format
Reclaiming disk space from large WTV files while preserving full audio quality in a compressed lossless container

Slik fungerer det

FFmpeg demuxes the WTV container, extracts and decodes the audio stream (AC3 or AAC), then encodes the decoded PCM to ALAC within an M4A (MPEG-4 Audio) container. The ALAC encoder compresses losslessly at approximately 50-60% of the raw PCM size. Multi-channel 5.1 AC3 sources are downmixed to stereo by default. The video stream, EPG metadata, and any closed caption data are discarded during extraction.

Kvalitet og ytelse

ALAC preserves the full decoded audio quality from the WTV source — the compression is lossless, so no additional quality is lost. The limiting factor is the broadcast source itself: AC3 at 192-384 kbps or AAC at 128-256 kbps. The ALAC output captures whatever fidelity the original broadcast provided, stored in a format that can be decoded to identical PCM samples indefinitely.

FFMPEG EngineModerateLossless

Enhetskompatibilitet

Device	WTV	ALAC
Windows PC	Partial	Partial
macOS	Partial	Native
iPhone/iPad	Partial	Native
Android	Partial	Partial
Linux	Partial	Partial
Web Browser	No

Anbefalte innstillinger per plattform

YouTube

Resolution: 1920x1080

Bitrate: 8-12 Mbps

H.264 recommended for fast processing

Instagram

Resolution: 1080x1080

Bitrate: 3.5 Mbps

Square or 9:16 for Reels

TikTok

Resolution: 1080x1920

Bitrate: 4 Mbps

9:16 vertical, under 60s ideal

Twitter/X

Resolution: 1280x720

Bitrate: 5 Mbps

Under 140s, 512MB max

Resolution: 960x540

Bitrate: 2 Mbps

16MB limit for standard, 64MB for document

Discord

Resolution: 1280x720

Bitrate: 4 Mbps

Tips for best resultat

1Use ALAC when your primary playback devices are Apple products — it integrates natively with iTunes, Apple Music, and all Apple hardware
2Trim recordings to exclude commercial breaks before conversion to avoid archiving unwanted content
3Downmix 5.1 AC3 to stereo for music listening, or preserve multi-channel if you have a surround sound Apple TV setup
4Batch-process an entire Windows Media Center recording library to ALAC for a one-time migration to the Apple ecosystem
5Tag the output M4A files with program name and recording date to maintain organization after EPG metadata is lost

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WTV to ALAC conversion extracts and losslessly archives broadcast audio from Windows Media Center TV recordings, producing Apple-native files that preserve full quality while achieving meaningful compression.

Ofte stilte spørsmål

ALAC is mathematically lossless — the decoded output is bit-identical to the input PCM. However, the WTV broadcast audio was already lossy (AC3/AAC), so ALAC preserves exactly what the broadcast provided.

ALAC is open-sourced by Apple and supported by VLC, foobar2000, and most modern Android music players. However, native OS-level support outside Apple is inconsistent.

The ALAC file is dramatically smaller. A 4 GB one-hour WTV (mostly video) produces an ALAC audio file of approximately 150-200 MB per hour — the video accounts for 95%+ of WTV file size.

Yes. The M4A container supports rich metadata tags. You can add title, artist, album, and artwork after conversion since WTV EPG metadata does not transfer automatically.

Choose ALAC if you use Apple devices primarily. Choose FLAC for broader non-Apple compatibility. Both are lossless and preserve identical quality — the difference is ecosystem support.

Relaterte konverteringer og verktøy

Konverter også WTV til

WTV to MP4→WTV to AAC→WTV to AVI→WTV to FLAC→WTV to WAV→WTV to WebM→

Konverter også til ALAC

MP4 to ALAC→AAC to ALAC→AVI to ALAC→

Convert WTV to ALAC — Free Online Converter