Convert Ogg Video (.ogv) to Adaptive Multi-Rate Audio (.amr) online for free. Fast, secure video conversion with no watermarks or registration.
Pengaturan konversi — tambahkan file untuk menyesuaikan
Upload your .ogv 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.
OGV files contain Vorbis audio within the Ogg video container. AMR (Adaptive Multi-Rate) is a narrowband speech codec optimized for GSM cellular networks, encoding voice at 4.75-12.2 kbps mono at 8 kHz. AMR was the standard voice format for 2G/3G telephony systems and voicemail worldwide.
AMR produces the smallest possible audio files — roughly 90 KB per minute at the highest quality mode. This makes it useful for extracting speech content from OGV videos when extreme compression is needed for MMS, voicemail systems, or storage-constrained embedded devices.
Some legacy telephony platforms and IVR systems require AMR input, making this conversion relevant when repurposing OGV educational or instructional content for telephone-based delivery.
FFmpeg extracts and decodes the Vorbis audio from the OGV container, downmixes to mono, resamples from 44.1 kHz to 8 kHz, and encodes to AMR-NB using the libopencore-amrnb encoder. The output uses the standard AMR file format with the #!AMR\n header. The codec operates at eight discrete bitrate modes from 4.75 to 12.2 kbps, optimized for human speech frequencies between 300-3400 Hz.
AMR is telephone-quality — adequate for recognizable speech but poor for any other audio content. The 8 kHz sample rate limits frequency response to the telephone band (300-3400 Hz). Music, ambient sound, and high-frequency content are heavily degraded. The quality is comparable to an analog phone call.
| Device | OGV | 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
OGV to AMR conversion produces the most compact possible audio for telephony and extreme low-bandwidth applications from open-source video sources.
Transfer Aman
Unggahan terenkripsi HTTPS
Privasi Utama
File dihapus otomatis setelah pemrosesan
Tanpa Pendaftaran
Mulai mengonversi secara instan
Berfungsi di Mana Saja
| No |
8MB free, 50MB Nitro
Browser apa pun, perangkat apa pun
| Fitur | OGV | AMR |
|---|---|---|
| Nama Lengkap | Ogg Video | Adaptive Multi-Rate Audio |
| Ekstensi | .ogv | .amr |
| Terbaik Untuk | Open source | Speech optimized |