Abstract: An information processing system includes a storage section that stores a plurality of templates respectively corresponding to a plurality of preset sounds, an acquisition section that acquires external sound data corresponding to an external sound detected by a sound detection section, a determination section that compares the external sound data with each of the plurality of templates, and determines the type of preset sound corresponding to the external sound, and an execution section that executes a process corresponding to the determined type of preset sound.

Abstract: A section corresponding to a given duration is sampled from sound data that indicates the voice of a player collected by a microphone, and a vocal tract cross-sectional area function of the sampled section is calculated. The vertical dimension of the mouth is calculated from a throat-side average cross-sectional area of the vocal tract cross-sectional area function, and the area of the mouth is calculated from a mouth-side average cross-sectional area. The transverse dimension of the mouth is calculated from the area of the mouth and the vertical dimension of the mouth.

Abstract: An information processing system includes a storage section that stores a plurality of templates respectively corresponding to a plurality of preset sounds, an acquisition section that acquires external sound data corresponding to an external sound detected by a sound detection section, a determination section that compares the external sound data with each of the plurality of templates, and determines the type of preset sound corresponding to the external sound, and an execution section that executes a process corresponding to the determined type of preset sound.

Abstract: A position detection system includes an image acquisition section that acquires an image from an imaging device when the imaging device has acquired an image of an imaging area corresponding to a pointing position from a display image generated by embedding a marker image as a position detection pattern in an original image, and a position detection section that performs a calculation process that detects the marker image embedded in the acquired image based on the acquired image to determine the pointing position corresponding to the imaging area.

Abstract: A section 52 corresponding to a given duration is sampled from sound data 50 that indicates the voice of a player collected by a microphone, and a vocal tract cross-sectional area function 54 of the sampled section is calculated. The vertical dimension 1y of the mouth is calculated from a throat-side average cross-sectional area d1 of the vocal tract cross-sectional area function 54, and the area dm of the mouth is calculated from a mouth-side average cross-sectional area d2. The transverse dimension of the mouth is calculated from the area dm and the vertical dimension 1y of the mouth.

Abstract: A compressed data processing apparatus, a method thereof and a compressed data processing program that are capable of reducing a processing load and enhancing processing speed. A multitrack decompression apparatus 30 comprises compressed audio data read-in section 31, decompression processing sections 34, 35, and 37, and synthesis processing section 36. When two pieces of compressed audio data in MPEG-1 audio format are read-in by the compressed audio data read-in section 31, sectional decompression processing up to a step of inverse quantization processing is performed for each piece of data by decompression processing sections 34 and 35. Synthesis processing is performed by synthesis processing section 36 for two pieces of intermediate data obtained thus, and inverse frequency transformation processing is then performed for the intermediate data that underwent synthesis by decompression processing section 37 to produce non-compressed audio data.