Acoustic device and music piece reproduction program

Patent metadata

Field	Value
Publication number	US-11934738-B2
Application number	US-201917610796-A
Country	US
Kind code	B2
Filing date	May 14, 2019
Priority date	May 14, 2019
Publication date	Mar 19, 2024
Grant date	Mar 19, 2024

Abstract

An acoustic device includes: a music player that is capable of simultaneously playing a plurality of music pieces of which music piece data includes specific playback positions set therefor; a playback speed adjusting section configured to adjust a playback speed of each of the music pieces; a music piece switching section configured to execute switching from a first music piece being played by the music player to a second music piece; and a playback position adjusting section configured to execute adjustment such that the specific playback position of the second music piece is aligned on a time axis with the specific playback position of the first music piece being played at a playback speed adjusted by the playback speed adjusting section.

First claim

The invention claimed is:

1. An acoustic device, comprising:
a music player configured to simultaneously play a plurality of music pieces comprising musical structure change positions set therefor, the music pieces comprising a first music piece and a second music piece;
a playback speed adjusting section configured to adjust a playback speed of each of the plurality of music pieces;
a music piece switching section configured to execute switching from the first music piece being played by the music player to the second music piece; and
a playback position adjusting section configured to execute adjustment such that the musical structure change position of the second music piece is aligned on a time axis with the musical structure change position of the first music piece being played at a playback speed adjusted by the playback speed adjusting section, and a playback position of the second music piece is aligned with a playback position of the first music piece.

2. The acoustic device according to claim 1 , further comprising a switching operation section configured to induce an operator to perform switching of the music pieces.

3. The acoustic device according to claim 2 , wherein the switching operation section is a cross fader configured to change an output ratio between output of the first music piece being played and output of the second music piece.

4. A non-transitory computer-readable recording medium recording a music piece playback program configured to cause a computer to function as the acoustic device according to claim 1 .

5. The acoustic device according to claim 1 , wherein the musical structure change positions are positions within the plurality of music pieces where a musical structure is changed.

6. The acoustic device according to claim 1 , wherein the musical structure change positions of the plurality of music pieces are positions within the plurality of music pieces where a change between musical structures occurs, the musical structures including at least two of: an introduction; a first verse; a second verse; a chorus; and an ending.

Assignees

• Alphatheta Corp

Inventors

• OHKUMA Takahisa
• Habu Yohei
• TOMII Masamichi
• Abe Tetsuro

Classifications

• G06F3/165 Primary

  Management of the audio stream, e.g. setting of volume, audio stream path · CPC title

• G10H1/0008 Primary

  Associated control or indicating means · CPC title

• G10H2240/325

  Synchronizing two or more audio tracks or files according to musical features or musical timings · CPC title

• H04R3/00

  Circuits for transducers (arrangements for producing a reverberation or echo sound G10K15/08; amplifiers H03F) · CPC title

• G10H2210/061

  for extraction of musical phrases, isolation of musically relevant segments, e.g. musical thumbnail generation, or for temporal structure analysis of a musical piece, e.g. determination of the movement sequence of a musical work · CPC title