Convert AIFF to AMR — Free Online Converter
Convert Audio Interchange File Format (.aiff) to Adaptive Multi-Rate Audio (.amr) online for free. Fast, secure audio conversion with no watermarks or registration.
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About AIFF to AMR Conversion
AIFF stores studio-quality uncompressed PCM audio, while AMR (Adaptive Multi-Rate) is a narrowband speech codec running at 4.75-12.2 kbps. This conversion represents one of the most extreme compression ratios in audio: from 1,411 kbps (CD-quality AIFF) down to 12.2 kbps AMR-NB, a 115:1 ratio. The output is designed exclusively for telephony — voicemail, IVR systems, and cellular voice transmission.
Why Convert AIFF to AMR?
Telecom infrastructure worldwide runs on AMR. When studio-recorded voice prompts (IVR menus, hold music announcements, automated greetings) need to be loaded into a telephone switch, PBX, or voicemail platform, they must be in AMR format. The extreme compression makes AMR ideal for transmission over 2G/3G cellular links where bandwidth is measured in kilobits.
Common Use Cases
- Encoding professional voice-over recordings for telephone IVR systems
- Preparing studio-quality announcements for voicemail greeting systems
- Creating ultra-compact audio for SMS/MMS applications
- Converting AIFF narration for embedding in cellular network infrastructure