| 摘要 |
The present invention provides an automatic tone-following method and system for music accompanying devices, which detects the frequency of the singer's voice instantly and continuously and compares it with the theme tone frequency of the accompanying music to estimate the error between the tones of the singer and the music so as to adjust the tone of the music to match the tone of the singer's voice. The present invention calculates the fundamental frequency of the user's voice every short section of time through a tone estimator, then converts the fundamental frequency of the user's voice into user scale sequence in a scale sequence recorder, then compares the difference between the user scale sequence and the theme scale sequence through a scale matcher. Whether a transposition is needed through a transposition judger is determined so that the scale parameter in the music synthesizer can be adjusted.
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