Question: A source speech signal is encoded by an 8 th -order Linear Predictive Coding (LPC) parametric model using a frame analysis length of 25 ms,

A source speech signal is encoded by an 8^th-order Linear Predictive Coding (LPC) parametric model using a frame analysis length of 25ms, and with 20% frame overlap. Approximately how many frames per second will be encoded by this LPC model?

Following quantising, the LPC model described in the first part, is allocated an average of 5 bits per frame to transmit each predictor coefficient. If it is assumed 1 bit is allocated for the input excitation (U/V) signal, and 6 bits each are respectively assigned to the pitch period and amplitude gain control, what will be the output bitrate of this LPC model?

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