Freeware Descriptions:
WAV to AC3 Encoder is a GUI for Aften A/52 audio encoder created by Justin Ruggles. WAV to AC3 Encoder project was started at 27 January 2007 by Wieslaw Šoltés. There are Win32 (x86) and Win64 (x86_64, AMD64) binaries available. WAV to AC3 Encoder has full UNICODE and ANSI support.
Here is complete features (taken from authors site):
Supported Operating Systems: Miscrosoft Windows 98SE, Me, XP, XP 64bit, 2003, 2003 64bit, Vista, Vista 64bit.
Features:
- Multi-Threaded encoding.
- Loading and saving of all program settings.
- Encoder presets.
- Vary fast.
- Optimized for modern CPU’s.
- High-quality of output audio files.
- Full UNICODE and ANSI support.
- Natively supports x86 and AMD64 architectures.
- Options for advanced users.
- Small size.
- Sources available under GNU GPLv2 license.
- Very simple to use.
What’s New in version 2.3:
- Added fully featured Aften engines editor.
- Added Advanced view check box to main window.
- Fixed invalid position change for bitrate/quality slider when switching between CBR/VBR mode.

File Size / OS:
- 823 KB / Windows 9x - ME - 2000 - NT - XP - 2003 - Vista
Download WAV to AC3 Encoder 2.3: