LIHA Tools

AMR to AAC / M4A Converter

Convert AMR audio to AAC / M4A in a browser-only batch. Files and results are never uploaded.

Files stay in this browser tab and are never uploaded. Up to 250.0 MiB per file and 50 files.

Common output settings

Advanced settings

The batch workspace is ready. Audio encoding becomes available after the verified browser engine is loaded.

How AMR to AAC / M4A conversion works

AMR decode → normalized audio stream → AAC / M4A encode

Reading AMR

AMR input is optimized for narrowband or wideband speech and may have limited metadata.

Creating AAC / M4A

AAC / M4A output uses efficient lossy AAC audio in an M4A container with compatible metadata.