FIELD: radio.
SUBSTANCE: present invention relates to a method for estimating pitch and/or fundamental frequency in a signal having a periodic or quasiperiodic component. Signal is transformed from a time-domain to a frequency-domain to obtain a spectrum of signal, spectrum is processed to obtain a zero-phase spectrum of signal, spectrum of signal is transformed to time-domain to obtain a correlation signal, spectrum and correlation signals are combined to a combined spectrum, and pattern is estimated based on combined spectrum.
EFFECT: technical result consists in improvement of reliability of estimating pitch and/or fundamental frequency in a signal.
15 cl, 8 dwg
Title |
Year |
Author |
Number |
HARMONIC TRANSFORMATION IMPROVED BY THE CROSS PRODUCT |
2021 |
- Villemoes, Lars
- Hedelin, Per
|
RU2778834C1 |
HARMONIC TRANSFORMATION ENHANCED BY CROSS PRODUCT |
2018 |
- Villemoes, Lars
- Hedelin, Per
|
RU2765618C2 |
CROSS PRODUCT-ENHANCED HARMONIC TRANSFORMATION |
2010 |
- Villemoes Lars
- Hedelin Per
|
RU2495505C2 |
HARMONIC TRANSFORMATION IMPROVED BY CROSS-PRODUCT |
2017 |
- Villemoes Lars
- Hedelin Per
|
RU2646314C1 |
CROSS PRODUCT-ENHANCED HARMONIC TRANSFORMATION |
2018 |
- Villemoes, Lars
- Hedelin, Per
|
RU2667629C1 |
HARMONIC TRANSFORMATION IMPROVED BY CROSS PRODUCT |
2022 |
- Villemoes, Lars
- Hedelin, Per
|
RU2806621C1 |
IMPROVED HARMONIC CONVERSION |
2010 |
- Ehkstrand Per
- Villemoes Lars Falk
|
RU2493618C2 |
ENCODING AND DECODING OF PULSE AND RESIDUAL PARTS OF AUDIO SIGNAL |
2022 |
|
RU2825308C2 |
BANDWIDTH EXTENSION METHOD, BANDWIDTH EXTENSION APPARATUS, PROGRAM, INTEGRATED CIRCUIT AND AUDIO DECODING APPARATUS |
2011 |
- Isikava Tomokazu
- Norimatsu Takesi
- Chzhou Khuan
- Chun Kok Sen
- Chzhun Khajshan
|
RU2582061C2 |
METHOD AND DEVICE FOR ENHANCEMENT OF VOICE SIGNAL IN PRESENCE OF BACKGROUND NOISE |
2004 |
|
RU2329550C2 |