Abstract: There are provided a vehicle detection apparatus and a vehicle detection method which are capable of detecting a sound source even when a plurality of vehicles are traveling simultaneously or when there are noises produced from something other than the desired vehicle and calculating the location in the vehicle traveling direction and the lane direction of the sound source and the number of passing vehicles.

Abstract: There are provided a vehicle detection apparatus and a vehicle detection method which are capable of detecting a sound source even when a plurality of vehicles are traveling simultaneously or when there are noises produced from something other than the desired vehicle and calculating the location in the vehicle traveling direction and the lane direction of the sound source and the number of passing vehicles.

Abstract: A method and apparatus enabling information including respective angular directions to be obtained for one or more sound sources includes a sound source direction estimation section for frequency-domain and time-domain processing of sets of output signals from a microphone array to derive successive estimated angular directions of each of the sound sources. The estimated directions can be utilized by a passage detection section to detect when a sound source is currently moving past the microphone array and the direction of the sound source at the time point when such passage detection is achieved, and a motion velocity detection section which is triggered by such passage detection to calculate the velocity of the passing sound source by using successively obtained estimated directions.

Abstract: This reverberant characteristic signal generation apparatus comprises a measuring room where a speaker and one channel of microphone is provided to supply one channel of a pulse train indicative of the reverberant characteristic of the room, a direction data generation portion for generating direction data indicative of an imaginary incoming direction of a indirectly transmitted impulse sound, an operation portion for operating the time differences due to the inclination of the incoming direction of the indirectly transmitted impulse sound to an imaginary dummy head, having right and left ears having a distance therebetween, at the position of the microphone, and an output portion for outputting an amplitude of each pulse and the delay time of the indirectly transmitted impulse sound to the microphone and the time differences to provide the reverberant characteristic signal which may be recorded by a recorder.