Abstract: A sound generation device is composed of a main unit and a game cartridge storing a sound generation program. The game cartridge includes an XY-axes acceleration sensor for detecting a tilt in two respective directions of a game device housing. When a button of the main unit is pressed, a CPU of in the main unit reads waveform data corresponding to one syllable in lyrics from human voice sound waveform data stored in a program ROM, changes a frequency and an amplitude of the waveform data in accordance with the obtained amounts of tilts in two directions, and outputs the processed waveform data from a loudspeaker as a sound. Thus, it is possible to provide a sound generation device capable of outputting a sound by changing its pitch and volume.

Abstract: A game apparatus functioning as a stereo enhancement apparatus includes a CPU, and the CPU generates sound signals of stereo sounds required for the game. The CPU adjusts volumes of stereo sounds simultaneously played from respective sound sources on the basis of pan of the respective sound sources, and mixes the plurality of stereo sounds whose volumes have been adjusted to generate a stereo sound of two channels. Next, the stereo sound including an L channel sound signal (Lin) and an R channel sound signal (Rin) that have been mixed is divided into two systems, and then, a stereo enhancement signal (Lin?Rin) is generated. Then, the stereo enhancement signal is delayed, an added signal obtained by adding the delayed stereo enhancement signal to the Lin is generated, and a subtracted signal obtained by subtracting the delayed stereo enhancement signal from the Rin is generated. Then, the added signal is output from a speaker for L channel, and the subtracted signal is output from a speaker for R channel.

Abstract: A sound generation device is composed of a main unit 10 and a game cartridge 30 storing a sound generation program. The game cartridge 30 includes an XY-axes acceleration sensor 31 for detecting a tilt in two respective directions of a game device housing 11. When an A button 16 is pressed, a CPU 21 included in the main unit 10 reads waveform data corresponding to one syllable in lyrics from human voice sound waveform data 51 stored in a program ROM 33, changes a frequency and an amplitude of the waveform data in accordance with the obtained amounts of tilts in two directions, and outputs the processed waveform data from a loudspeaker 18 as a sound. Thus, it is possible to provide a sound generation device capable of outputting a sound by changing its pitch and volume.

Abstract: A compass wherein positional information regarding a predetermined terrestrial location is stored; present time, corresponding to the terrestrial location whose positional information is stored, is measured and displayed; and constellation data is stored. A geomagnetism-detector is provided for detecting the direction of geomagnetism and for deriving azimuthal data therefrom. A constellation data display device is provided for reading out stored constellation data in accordance with the derived azimuthal data, the stored positional information, and the measured present time, and for displaying the readout constellation data.

Abstract: In a compass, the direction of the geomagnetism is detected by magnetic sensors and an azimuth detector, and data on the direction of the geomagnetism is supplied to a controller. A ROM stores declination data representing the angle formed between the direction of the geomagnetism and the direction of the geographic meridian. The data on the direction of the geomagnetism is corrected in accordance with the declination data stored in the ROM, to thereby obtain geographical direction data. This geographical direction data is displayed on a display device. In this manner, the compass enables the user to easily know a true direction.

Abstract: Only one pressure sensor is employed in a compact measuring apparatus for measuring both depths of water and altitude. A pressure-data generator generates pressure data corresponding to a pressure applied to the single pressure sensor. A water-depth data converter converts this pressure data into water-depth data. An altitude-data converter converts this pressure data into altitude data. The water-depth data and the altitude data are visually displayed on the compact measuring apparatus.