06.203GPPHalf rate speech transcodingTS
A sample buffer containing the previous 195 input high pass filtered speech samples, y(n), is shifted so that the oldest 160 samples are shifted out while the next 160 input samples are shifted in. The oldest 160 samples in the buffer correspond to the next frame of samples to be encoded. The analysis interval comprises the most recent 170 samples in the buffer. The samples in the buffer are labelled as s(n) where 0£n£194 and s(0) is the first (oldest) sample.