Abstract: An audio signal reproduction apparatus for reproducing scratch sound from an optical disk. Scratch reproduction operation is performed through use of a jog dial and a turntable. When either the jog dial or the turn table has been actuated, a rotational operation signal of the thus-actuated element is supplied to a main system controller of the apparatus. The main system controller detects a rotational direction and a rotational speed, which have been achieved at the time of scratching operation, on the basis of the rotational operation signal, thereby controlling reading of audio data from memory. The main system controller processes the rotational operation signal in accordance with a jog dial/turntable switching signal, thereby controlling reading of audio data such that the same scratching sound is output when the same rotational operation has been performed.

Abstract: An audio signal reproduction apparatus for reproducing scratch sound from an optical disk. Scratch reproduction operation is performed through use of a jog dial and a turntable. When either the jog dial or the turn table has been actuated, a rotational operation signal of the thus-actuated element is supplied to a main system controller of the apparatus. The main system controller detects a rotational direction and a rotational speed, which have been achieved at the time of scratching operation, on the basis of the rotational operation signal, thereby controlling reading of audio data from memory. The main system controller processes the rotational operation signal in accordance with a jog dial/turntable switching signal, thereby controlling reading of audio data such that the same scratching sound is output when the same rotational operation has been performed.

Abstract: A recording medium reproducing device is provided which device varies a tempo and a key of music reproduced from audio data recorded on a recording medium. The recording medium reproducing device comprises means for calculating a variable width of the key according to a varied tempo, means for adding the variable width of the key to a variable width of the key according to a varied key so as to have a summed variable width of the key, and means for displaying the summed variable width of the key.

Abstract: The present invention provides a recording medium reproduction apparatus that can continuously reproduce different tunes from recording media at the same numbers of beat and the same beat timing. The recording medium reproduction apparatus includes: a first recording medium reproduction unit; a second recording medium reproduction unit; and a control unit that compares the number of beats per unit time of a tune reproduced from a first recording medium with the number of beats per unit time of a tune reproduced from a second recording medium, and adjusts the reproduction rate of the second recording medium reproduction unit so that the number of beats per unit time of the second recording medium reproduction unit becomes equal to the number of beats per unit time of the first recording medium reproduction unit.

Abstract: A recording medium reproduction apparatus is provided, which apparatus includes: a reproduction instruction unit which inputs instructions on a direction and a rate of a scratch reproduction of a recording medium; a data storage unit which stores data read out from the recording medium, the data being separated by a reference position at which the scratch reproduction is started into first and second halves each having a predetermined time length; and a scratch reproduction system which reads and reproduces the data stored in the data storage unit in accordance with the instructions input by the reproduction instruction unit.

Abstract: A recording medium reproduction apparatus is provided, which apparatus includes: a reproduction instruction unit which inputs instructions on a direction and a rate of a scratch reproduction of a recording medium; a data storage unit which stores data read out from the recording medium, the data being separated by a reference position at which the scratch reproduction is started into first and second halves each having a predetermined time length; and a scratch reproduction system which reads and reproduces the data stored in the data storage unit in accordance with the instructions input by the reproduction instruction unit.

Abstract: The present invention provides a recording medium reproduction apparatus that can continuously reproduce different tunes from recording media at the same numbers of beat and the same beat timing. The recording medium reproduction apparatus includes: a first recording medium reproduction unit; a second recording medium reproduction unit; and a control unit that compares the number of beats per unit time of a tune reproduced from a first recording medium with the number of beats per unit time of a tune reproduced from a second recording medium, and adjusts the reproduction rate of the second recording medium reproduction unit so that the number of beats per unit time of the second recording medium reproduction unit becomes equal to the number of beats per unit time of the first recording medium reproduction unit.

Abstract: A recording medium reproducing device is provided which device varies a tempo and a key of music reproduced from audio data recorded on a recording medium. The recording medium reproducing device comprises means for calculating a variable width of the key according to a varied tempo, means for adding the variable width of the key to a variable width of the key according to a varied key so as to have a summed variable width of the key, and means for displaying the summed variable width of the key.