> > i thought that the chirp could evntually be an aliasing effect where > frequencis in the range above 11khz are mirroed into lower bands by the > sampling process. That could be, but... > in order to rule that out i did some testing with encoding > a short wav file.. i implemented a downsample by 2 quick hack into the lame > source (takes the avearge value between 2 samples..) This 'downsampling' will have no beneficial effects on aliasing above simply dropping every other sample. Linear averaging is not the same as a lowpass filter. Monty -- MP3 ENCODER mailing list ( http://geek.rcc.se/mp3encoder/ )
