TECHNICAL FIELD

The present invention relates to sound equipment and a sound equipment program.

BACKGROUND ART

Typical sound equipment such as a DJ controller is connected to a computer to reproduce digital music piece data in MP3 format or the like using application software run on the computer.

In this regard, a display of the computer and a display of the DJ controller show a state of progress of the music piece data to be reproduced and information of the music piece data to be reproduced, such as a BPM (Beats Per Minute) value and an elapsed time of reproduction, and an operator does DJ performance while looking at an image appearing on the displays.

For instance, Patent Literature 1 discloses a technology where a reproduction time of a single music piece in audio signal is acquired, the number of beats and the number of bars per unit of time are detected, and the number of bars and the number of beats, which indicate a state of progress of reproduction of the audio signal, are displayed on a display respectively in a horizontal direction and a vertical direction.

CITATION LIST

Patent Literature(S)

Patent Literature 1: JP 4348391 B

SUMMARY OF THE INVENTION

Problem(s) to be Solved by the Invention

However, according to the technology described in Patent Literature 1, visibility to an operator is reduced with a size reduction of a display, making the state of reproduction of the music piece less seeable, although the visibility to the operator can be ensured as long as the display is sufficiently large.

An object of the invention is to provide sound equipment and a sound equipment program configured to make it easy for an operator to see a state of progress of a currently reproduced music piece.

Means for Solving the Problem(s)

According to an aspect of the invention, sound equipment includes: a beat position acquiring unit configured to analyze a beat position of music piece data to be reproduced or acquire an analysis result; and a beat position displaying unit configured to display a scale of a differential numerical value of the number of beats in a plus direction and a minus direction of the music piece data with reference to a currently reproduced position of the music piece data.

According to another aspect of the invention, a sound equipment program is configured to enable a computer to function as the sound equipment according to the above aspect of the invention.

