Algorithm for high precision root finding from high order LPC models

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Algorithm for high precision root finding from high order LPC models

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© The Institution of Electrical Engineers
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A method for the extraction of formants from high order autoregressive models and its implementation are described. Test results are presented for synthetic and real data. It is shown that success rates of the order of 70% are obtainable even for model orders as high as 200.

Inspec keywords: acoustic signal processing; filtering and prediction theory; musical instruments; encoding

Other keywords: real data; resonant frequencies; synthetic data; drum samples; speech analysis; linear predictive coding; algorithm; atonal percussion instruments; high precision root finding; high order LPC models; high order autoregressive models; speech coding; drums; formants extraction; success rates; acoustic waveforms

Subjects: Audio equipment and systems; Codes; Acoustic signal processing; Signal processing and detection; Music and musical instruments

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