Lattice All-Pole Structure of Digital Filters and Its Zero Input Response
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The lattice structures for linear prediction were formulated in speech processing by Makhoul . The LPC coders are often used in the transmission of speech signals. Such systems include a filter in the receiver that produces an approximation of a speech waveform. The parameters of this filter are extracted from the speech signal in the vocoder for frames of N samples. The lattice all-pole structure -with two multipliers frequently occurs in such vocoders. The signal flow graphs (SFG) are very useful for a computation of the transfer function from the source nodes to the sink nodes.
Typ dokumentuRecenzovaný dokument
Zdrojový dokumentRadioengineering. 1994, vol. 3, č. 1, s. 14-16. ISSN 1210-2512
- 1994/1