| 摘要 |
The invention relates to a method for processing acoustic data, comprising steps of: receiving (110) acoustic data corresponding to an acoustic signal transformed in the frequency domain from an acoustic signal in the time domain, for example comprising a vibrato, or a beat, or a glissando, recorded by at least one acoustic sensor for at least one frequency of the frequency domain; demodulation (118) of the phase of the transformed acoustic signal; and calculation (120) of a stability coefficient of the demodulated phase; calculation (130) of a second stability coefficient of the demodulated phase on the basis of a demodulated phase difference between the instants of two successive frames; and display of said results, for example in the form of a helicoidal sonogram of the responses of the coefficients to a frequency vector. The invention can be applied to a tuning system or a music analysis system. |
