1. A computer-implemented method comprising the steps of: receiving audio input speech signals; extracting acoustic information comprising recognition features from said speech signals using a first automatic speech recognition system; compressing said acoustic information; transmitting said compressed acoustic information to a remote site; decompressing said compressed acoustic information to obtain decompressed recognition features; inputting, at said remote site, the decompressed recognition features into a second automatic speech recognition system to obtain a recognition result; and based at least in part on the recognition result, adjusting said first automatic speech recognition system.
1. A computer-implemented method comprising the steps of: receiving audio input speech signals; extracting acoustic information comprising recognition features from said speech signals using a first automatic speech recognition system; compressing said acoustic information; transmitting said compressed acoustic information to a remote site; decompressing said compressed acoustic information to obtain decompressed recognition features; inputting, at said remote site, the decompressed recognition features into a second automatic speech recognition system to obtain a recognition result; and based at least in part on the recognition result, adjusting said first automatic speech recognition system. 7. The method according to claim 1 , wherein said step of compressing said acoustic information comprises encoding Mel-frequency Cepstral coefficients.