## Abstract

An approach that uses mixed partial sets of basis functions is proposed for time-varying signal representation. Basis functions from two transforms are used, namely, the discrete Fourier transform (DFT) and the Walsh-Hadamard transform (WHT). An iterative algorithm is developed to implement the mixed representation. A finite number of DFT components, either fixed or variable, is used to represent the selective (narrowband) dominant spectrum of the signal on a frame-by-frame basis. The whitened (broadband) residual signal is represented using a small number of Walsh components. The mixed partial sets are applied to speech representation. Preliminary results and informal listenings using this model produced good quality speech.

Original language | English (US) |
---|---|

Title of host publication | Proceedings - IEEE International Symposium on Circuits and Systems |

Editors | Anon |

Publisher | Publ by IEEE |

Pages | 1768-1771 |

Number of pages | 4 |

Volume | 3 |

State | Published - 1989 |

Externally published | Yes |

Event | IEEE International Symposium on Circuits and Systems 1989, the 22nd ISCAS. Part 1 - Portland, OR, USA Duration: May 8 1989 → May 11 1989 |

### Other

Other | IEEE International Symposium on Circuits and Systems 1989, the 22nd ISCAS. Part 1 |
---|---|

City | Portland, OR, USA |

Period | 5/8/89 → 5/11/89 |

## ASJC Scopus subject areas

- Electrical and Electronic Engineering
- Electronic, Optical and Magnetic Materials