Audio reproduction apparatus having audio modulation function, method used by the apparatus, remixing apparatus using the audio reproduction apparatus, and method used by the remixing apparatus

An audio reproduction apparatus having audio modulation function, for reproducing a first audio signal recorded in a predetermined first recording medium, the audio reproduction apparatus comprising:

• a reproduction control unit for generating a reproduction control signal by analyzing at least one of said first and second displacement values, which are varied by a user, and outputting the generated reproduction control signal;
• and
• an audio reproduction unit for modulating and reproducing the first audio signal according to the reproduction control signal, wherein the reproduction control unit comprises:
• a trajectory detector operated by the user, for detecting a trajectory coordinate signal having at least one of the first and second displacement values detected from the operated result;
• and
• a reproduction control signal generator for analyzing the at least one of the first and second displacement values of the trajectory coordinate signal, generating the reproduction control signal according to the analyzed result, and outputting the reproduction control signal to the audio reproduction unit, and
• wherein the trajectory detector comprises a jog shuttle dial which is rotated by a user, the jog shuttle dial for sensing the rotated result as the operated result, obtaining the first displacement value from the sensed result, and outputting the trajectory coordinate signal having the first displacement value to the reproduction control signal generator.

An audio reproduction apparatus having audio modulation function, for reproducing a first audio signal recorded in a predetermined first recording medium, the audio reproduction apparatus comprising:

• a reproduction control unit for generating a reproduction control signal by analyzing at least one of said first and second displacement values, which are varied by a user, and outputting the generated reproduction control signal;
• and
• an audio reproduction unit for modulating and reproducing the first audio signal according to the reproduction control signal, wherein the reproduction control unit comprises:
• a trajectory detector operated by the user, for detecting a trajectory coordinate signal having at least one of the first and second displacement values detected from the operated result;
• and
• a reproduction control signal generator for analyzing the at least one of the first and second displacement values of the trajectory coordinate signal, generating the reproduction control signal according to the analyzed result, and outputting the reproduction control signal to the audio reproduction unit, and
• wherein the trajectory detector comprises:
• a recording medium which is moved at a speed and in a direction varied by a user, the recording medium having a predetermined number of lands and grooves in the surface of a spiral sound groove of the recording medium;
• a contact portion for generating an analog signal having a direction information which indicates the direction in which the recording medium is rotated, while moving in contact with the lands and grooves of the recording medium;
• an analog-to-digital converter for converting the analog signal to a digital signal, and outputting the digital signal;
• and
• a signal processor for calculating the first displacement value corresponding to the direction and speed of movement of the recording medium by analyzing the digital signal, and outputting the trajectory coordinate signal having the first displacement value to the reproduction signal generator.

A remixing apparatus comprising:

• an audio reproduction apparatus having audio modulation function, for reproducing a first audio signal recorded in a predetermined first recording medium, the audio reproduction apparatus comprising:
• a reproduction control unit for measuring first and second displacement values and for generating a reproduction control signal by analyzing at least one of said first and second displacement values, which are variable by a user, and outputting the generated reproduction control signal;
• and
• an audio reproduction unit for modulating and reproducing the first audio signal according to the reproduction control signal which optionally modulates the first audio signal;
• an audio reproducer for reproducing a second audio signal recorded in a second recording medium;
• and
• a signal synthesizer for mixing the first audio signal output from the audio reproduction apparatus, and the second audio signal output from the audio reproducer, for outputting the mixed result as a remixed audio signal.