Convert Windows TV (.wtv) to Adaptive Multi-Rate Audio (.amr) online for free. Fast, secure video conversion with no watermarks or registration.
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 .amr file when it's ready.
WTV (Windows TV) recordings from Windows Media Center contain broadcast television with MPEG-2 or H.264 video and AC3 or AAC audio, plus EPG metadata covering program title, description, channel, and recording time. The format was Microsoft's successor to DVR-MS, featuring an NTFS-like container designed for real-time TV tuner recording. AMR (Adaptive Multi-Rate) is a narrow-band speech codec optimized for voice transmission, standardized by 3GPP for use in GSM and UMTS mobile networks.
Since Windows Media Center was fully removed from Windows 10, WTV files have become stranded in personal archives. Many users have years of recorded TV content — news broadcasts, interviews, talk shows — where only the spoken audio matters and the video is unnecessary.
Converting WTV to AMR extracts spoken-word audio from TV recordings at extremely small file sizes. AMR encodes speech at just 4.75-12.2 kbps, producing files that are tiny enough for MMS messaging, cellular transmission, and storage on the most constrained devices. This is specifically useful for voice-centric TV content like news, interviews, and talk shows.
AMR sacrifices music fidelity for speech clarity, making it inappropriate for concert recordings but ideal for extracting dialogue, commentary, and narration from WTV files at minimal file sizes.
FFmpeg demuxes the WTV container, discards the video stream, decodes the AC3 or AAC audio track, downsamples to 8 kHz mono (AMR-NB standard), and encodes using the libopencore_amrnb codec. The AMR-NB codec operates at fixed bitrates between 4.75 and 12.2 kbps. EPG metadata, closed captions, and multi-channel audio are all discarded. The narrow-band 8 kHz sampling rate inherently discards all audio content above 4 kHz.
AMR is a speech-only codec — it preserves intelligible voice but severely degrades music, ambient sound, and high-frequency content. The 8 kHz narrow-band sampling rate means the output sounds similar to a phone call. For news broadcasts and interviews, the spoken dialogue remains clear and understandable. For music content, AMR is an extremely poor choice and other formats should be preferred.
| Device | WTV | AMR |
|---|---|---|
| Windows PC | Partial | Partial |
| macOS | Partial | Partial |
| iPhone/iPad | Partial | Partial |
| Android | Partial | Partial |
| Linux | Partial | Partial |
| Web Browser | No |
Resolution: 1920x1080
Bitrate: 8-12 Mbps
H.264 recommended for fast processing
Resolution: 1080x1080
Bitrate: 3.5 Mbps
Square or 9:16 for Reels
Resolution: 1080x1920
Bitrate: 4 Mbps
9:16 vertical, under 60s ideal
Resolution: 1280x720
Bitrate: 5 Mbps
Under 140s, 512MB max
Resolution: 960x540
Bitrate: 2 Mbps
16MB limit for standard, 64MB for document
Resolution: 1280x720
Bitrate: 4 Mbps
WTV to AMR conversion extracts voice content from TV recordings at minimal file sizes, producing telephone-quality audio suitable for speech archival and legacy mobile distribution.
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Λειτουργεί παντού
| No |
8MB free, 50MB Nitro
Οποιοδήποτε πρόγραμμα περιήγησης, οποιαδήποτε συσκευή
| Χαρακτηριστικό | WTV | AMR |
|---|---|---|
| Πλήρες όνομα | Windows TV | Adaptive Multi-Rate Audio |
| Επέκταση | .wtv | .amr |
| Ιδανικό για | Windows Media Center | Speech optimized |