https://www.dropbox.com/s/yx7n50rywdhfoc0/at3.zip 1. add to the folder that contains the at3 the at3_header_add.bat and at3.header. 2. You can file that has been added header If you run the at3_header_add.bat. 3. Set in the libavcodec Atrac3 settings audio decoder by installing ffdshow. 4. It is a success if you can play in WMP. (But, it is not possible to loop because there is no loop info in the data) If you want to play in Winamp input plug-in "Nullsoft DirectShow Decoder [in_dshow.dll]" The setting of the please add WAV (Example MPG;MPEG;M2V;AVI;WAV).
https://www.dropbox.com/s/xcs8lee578e6bdi/at3_header_add.zip?dl=1 Able to play AT3 file that cannot be played back. Please execute at3_2_header_add.bat (+at3_2.header). (Please use at3_header_add.bat(+at3.header) usually)
And it's a way of looping, Use the Hex editor. 0x04: Write the total file size - 8 with little endian 0x78: Write the Loop start sample with little endian 0x7C: Write the Loop end sample with little endian 0x8C: No header at3 file size with little endian Now loop playback with vgmstream.
Edit: I think fast songs are bit rates not supported by ffmpeg.
I was able to play it. Cause had the wrong designation of the bit rate and channel. 0x16: channel, 0x01 is monaural and 0x02 is stereo 0x20: bit rate, 0x60 0xC0 0x130(30 01) 0x180(80 01).