Old RealAudio "cook" codec 2016-01-17 22:45:24 I know RealAudio was hated for it's ad ridden propertiary software , it is very old and was often ridiculed for its low sound quality. However, the samples of the "Cook" RealAudio here sound quite good http://samples.mplayerhq.hu/real/AC-cook/ , I mean for a early 2000s internet streaming codec, not compared to Opus or whatever. The 64 kbps and lower samples sound a lot better than mp3 at the same bitrate at least to me (you can listen in VLC). Hell, they sound better than many current AAC+ internet radios sound (I am not saying this legacy codec is superior to HE-AAC merely that some internet streams using AAC+ sound really bad).How is that possible? Did cook use any bandwidth extension methods? I see even the 44 kbps file has frequencies up to 16 Khz and I know frequency response does not determine quality, but they are definitely more "trebly" than same bitrate mp3s. They are also stereo. I am not saying they are great, but they are listenable, surprising for an ancient codec with a very negative reputation. So what's up? What techniques did Cook use to compress audio? I also remember trying old RA internet radio as a kid and the quality seemed OK considering I was on dial-up.