KARAOKE SING-ALONG MACHINE

• Main Author: SAKA NOBUAKI
• Format: Patent
• Language: English
• Published: 03.10.1997
• Edition: 6
• Subjects: ACOUSTICS; ACOUSTICS NOT OTHERWISE PROVIDED FOR; ELECTROPHONIC MUSICAL INSTRUMENTS; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; MUSICAL INSTRUMENTS; PHYSICS; SOUND-PRODUCING DEVICES; SPEECH ANALYSIS OR SYNTHESIS; SPEECH OR AUDIO CODING OR DECODING; SPEECH OR VOICE PROCESSING; SPEECH RECOGNITION

PROBLEM TO BE SOLVED: To synthesize chorus voice of a large number of persons on the basis of the voice of a singer using a small-scale circuit by providing a plurality of synthesized voice information generating means for generating information of synthesized voice in the harmonic relation with inputted voice. SOLUTION: A cycle detecting part 41 detects the cycle T of input voice waveform through an analog-to-digital converter 40. The detected cycle T is sent along with the sampled value of voice waveform to voice processing parts 43a-43f. The voice processing part 43 generates waveform information of synthesized voice with frequency of 2K times, 1/2K times (K is an integer of 1 or more) of input voice. The generated waveform information of the synthesized voice is multiplexed by a mixer 44 to become basic information of chorus voice, which is sent to a pitch changing part 45 where the whole pitch (sound height) is changed on a semitone unit, for instance. The pitch-changed chorus voice information is sent to a mixer 8 through a digital-to-analog converter 46 and outputted from a speaker being superposed on input voice transmitted to the mixer 8 directly from a microphone amplifier 31.