Sound generating device with sigma-delta modulation frame and sound generating method
The invention discloses a sound generating device with a sigma-delta modulation frame and a sound generating method. The method comprises the following steps of: receiving an original digital audio signal; adding one direct current value to the original digital audio signal so as to generate a varie...
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| Hauptverfasser: | , |
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The invention discloses a sound generating device with a sigma-delta modulation frame and a sound generating method. The method comprises the following steps of: receiving an original digital audio signal; adding one direct current value to the original digital audio signal so as to generate a varied digital audio signal; carrying out sigma-delta modulation on the varied digital audio signal so as to generate a stream digital audio signal; filtering the stream digital audio signal to generate a simulation audio current signal; and converting the simulation audio current signal to a simulation audio voltage signal. |
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