Drag your .AMR file or use the browse button.
Select the desired output format from the dropdown list.
Click "Convert" and download your converted file once ready.
AMR stands for Adaptive Multi-Rate, an audio codec primarily used for compressing speech. It is commonly found in mobile phones and voice over IP (VoIP) applications to efficiently transmit voice data. The format was standardized by the 3GPP in 1999 to improve voice quality over limited bandwidth networks. Interestingly, AMR adjusts its bit rate dynamically to balance quality and data size.
The AMR codec uses a combination of linear predictive coding and algebraic code-excited linear prediction to compress audio. It achieves compression by exploiting the repetitive patterns in human speech, resulting in lower file sizes without sacrificing intelligibility. The format is designed to handle narrowband audio sampled at 8 kHz. AMR's efficiency and low latency make it ideal for real-time voice transmission.
AMR files typically store encoded speech and are often used in telecommunication systems and mobile devices. The codec supports multiple bit rates ranging from 4.75 to 12.2 kbps, allowing it to adapt to changing network conditions. This flexibility helps maintain understandable voice communication even in poor signal areas. The AMR format is widely supported by many audio players and conversion tools.
Drag your file here to to upload.
Up to 250MB
