exhale is a lightweight library and application to encode uncompressed WAVE audio files into MPEG-4 files complying with the Extended High-Efficiency AAC standard (xHE-AAC).

Updated
Dec 20, 2025
Size
428KB
Downloads
16.6K
In addition, exhale writes program peak-level and loudness data into the generated MPEG-4 files according to the ISO/IEC 23003-4, Dynamic Range Control (DRC) specification for use by decoders providing DRC.

exhale currently makes use of all frequency-domain (FD) coding tools in the scalefactor based MDCT processing path.

Its objective is high quality mono, stereo, and multichannel coding at medium and high bit rates, so the lower-rate USAC coding tools (ACELP, TCX, Enhanced SBR and MPEG Surround with Unified Stereo coding) won't be integrated.

exhale GUI needs exhale application (exhale.exe) and ffmpeg command line (ffmpeg.exe) to be placed in the same folder as the GUI.

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ALTERNATIVES TO EXHALE ENCODER