Convert VOB to AMR — Free Online Converter
Convert DVD Video Object (.vob) to Adaptive Multi-Rate Audio (.amr) online for free. Fast, secure video conversion with no watermarks or registration.
Conversion settings — add a file to adjust
About VOB to AMR Conversion
DVD VOB files contain high-quality audio (AC3, DTS, or LPCM) designed for home theater systems. AMR (Adaptive Multi-Rate) is a narrowband speech codec operating at 4.75-12.2 kbps, mono, 8 kHz — designed for GSM cellular voice. The quality gap between DVD audio and AMR is enormous, making this conversion appropriate only for speech content.
Why Convert VOB to AMR?
AMR produces the smallest possible audio files — about 90 KB per minute. This extreme compression is useful only for extracting speech-only content (dialogue, commentary, lectures) from DVDs when the audio needs to be delivered via MMS, legacy voicemail, or IVR systems with strict format requirements.
The conversion reduces DVD audio quality to telephone-grade, which is acceptable for speech recognition and transcription pipelines that do not require high fidelity.
Common Use Cases
- Extracting DVD lecture dialogue for delivery via legacy voicemail systems
- Creating ultra-compact audio clips from DVD content for MMS distribution