MPEG4 AAC non-conforming evaluation program 2003-12-03 09:46:59 Hi folks, I have uploaded a MPEG4 AAC test program.. It is NOT MPEG4 compliant as it does not conform to the standard. However, I am using as much of its tools as possible.. Conformance isn't done yet.. as such you will have to use the decoder that comes with the program to decode the encoded mp4a files into PCM files. (Unfortunately, you will need somekind of program that could playback headless raw pcm files such as CoolEdit.)Input files can be in WAV or raw PCM format..Please note..1. Gain Control selection would only change the filterbanks from the 2048 and 256 length module to the Sony Hybrid MDCT FilterBank. Its Bitstream is not scaleable.. (Not Implemented yet)..2. Constant Bitrates only worked on Non Gain Control.. If you are using gain-control, you will have to switch to variable bitrates. There is no gurrantee that it will work at 128 kbps or 160 kbps.. In fact it is optimized with PNS, TNS, INTENSITY and MS Stereo ON.3. Automatic window type switching, KB / Sine windowing function isn't properly implemented yet. You can manually force the switch..4. The Decoder & Encoder isn't properly optimized yet.. Please be free to post your comment. Your input would be most valued.