An ADIP signal detection circuit is capable of correctly and quickly detecting discontinuous points in a wobble signal, and has a simple configuration in a wobble detection system of an optical disc device such as a DVD+RRW, and an ADIP signal detection method thereof. From the delay and loss measurements, analytic values for the voice quality impairment caused by delay and by network loss, respectively, are established. An elastic compressing unit is provided between the speed-reducing unit or the motor and the machine base, and then the eccentric wheel is kept to elastically urge the machine base. This device also includes communication means for informing the source device of the delay introduced.