Abstract: An audio-intonation calibration method in which an audio signal emitted by a subject is reproduced to the auditory organs of the subject after real time processing, which comprises the following steps: acquisition of a model audio signal to be imitated; spectral analysis of the model audio signal; acquisition of an imitation audio signal emitted by the subject; spectral analysis of the imitation audio signal; comparison of the spectra of the model audio signal and the imitation audio signal; correction of the imitation audio signal as a function of the result of said comparison; and reproduction to the auditory organs of the subject of the corrected audio signal.

Abstract: An audio-intonation calibration method in which an audio signal emitted by a subject is reproduced to the auditory organs of the subject after real time processing, which comprises the following steps: acquisition of a model audio signal to be imitated; spectral analysis of the model audio signal; acquisition of an imitation audio signal emitted by the subject; spectral analysis of the imitation audio signal; comparison of the spectra of the model audio signal and the imitation audio signal; correction of the imitation audio signal as a function of the result of said comparison; and reproduction to the auditory organs of the subject of the corrected audio signal.

Abstract: A solid or liquid composition of food quality, non-allergenic and non-toxic, for scenting finished products formed of elastomers by contact of these finished products and these compositions before use. This chemically or physically isolated composition contains, in addition to one or several natural or artificial scents, one or several additives belonging to the group of agents for sugaring, sweetening, taste reinforcing, absorbing, coloring, lubricating, emulsifying, stabilizing, thickening, gelling, absorbing, anti-lumping, food preserving, anti-oxidation, and may be sterilized in different ways such as exposure to rays (.beta. type or the like). The invention is particularly useful for contraceptives, and comprises a package in which the contraceptive is contained isolated from a quantity of a scenting composition by means of a rupturable separator. Upon rupturing the separator, the product may be scented by massaging the package before opening it.