Mobile Phone And Ambient Noise Filtering Method Used In The Mobile Phone
| Autor: | Shih-Fang Wong, De-Zhi Li |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Noise temperature
Acoustics and Ultrasonics Computer science Frequency band Acoustics Ambient noise level Filter (signal processing) Noise figure Noise floor Noise (electronics) Noise symbols.namesake Arts and Humanities (miscellaneous) Sampling (signal processing) Gaussian noise Phase noise Image noise symbols Effective input noise temperature Noise (radio) |
| Zdroj: | The Journal of the Acoustical Society of America. 130:633 |
| ISSN: | 0001-4966 |
| DOI: | 10.1121/1.3615749 |
| Popis: | An exemplary ambient noise filtering method includes: sampling ambient noise signals to obtain multiple groups of sampled signals; analyzing each group of the sampled signals in each sampling period to determine ambient noise frequency band(s) in each sampling period, wherein the ambient noise frequency band is a frequency band where the ambient noise distributes; determining main noise frequency band(s) by statistically analyzing all the ambient noise frequency bands, wherein the main noise frequency band is a frequency band where the ambient noise concentrates and mainly distributes; and filtering the ambient noise out of signals generated during a communication by filtering the determined main noise frequency band(s) if the main noise frequency band(s) does not have a same range as that of a speech frequency band. Related exemplary mobile phone performing the method is also provided. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|