Long Term Prediction Unquantification. @param exc - Excitation @param es - Excitation offset @param start - Smallest pitch value allowed @param pitch_coef - Voicing (pitch) coefficient @param nsf - Number of samples in subframe @param gain_val @param bits - Speex bits buffer. @param count_lost @para
(float[] exc, int es, int start, float pitch_coef,
int nsf, float[] gain_val, Bits bits,
int count_lost, int subframe_offset, float last_pitch_gain)