| 摘要 |
PURPOSE: To provide a KARAOKE sing-along device which imparts adequate vibrato to the singing sound signals of a singer. CONSTITUTION: The detection pressure data of a pressure sensor disposed in a microphone for singing and vibrator control data which is the sequence data stored in the vibrato control tracks of music data are inputted to a control section 43 set in a DSP for sound processing. The data are inputted from this control section 43 to a conversion section 50 which retrieves a conversion table and figures out the frequency Frq and intensity Mg of the vibrato. The frequency Frq is inputted to a low frequency oscillator 51 and determines the oscillation frequency of this low frequency oscillator 51. The low frequency signal is multiplied by a vibrato depth coefft. Dep in a coefft. multiplier 52 nd is outputted as a vibrato waveform signal. Dep is obtd. by multiplying Mg by envelop waveform data En. This vibrato waveform signal is outputted to an FM modulation section and AM modulation section. The FM modulation section and AM modulation section are operation sections to impart FM and AM modulation to the singing sound signals. |
