Audio signal processing apparatus

An audio signal processing apparatus which changes the tempo of an input audio signal, said apparatus comprising:

• a magnification designating device which designates a plurality of different magnification increments, said different magnification increments being 1/n and n, wherein n is an integer;
• a device which automatically detects beats per minute of the input audio signal or a beat period of the input audio signal, changes said beats per minute or said beat period by applying to the detected beats per minute or the detected beat period a magnification increment designated by the magnification designating device, and changes the tempo of the input audio signal in accordance with the changed beats per minute or the changed beat period.

An audio signal processing apparatus capable of changing the tempo of an input audio signal, said apparatus comprising:

• magnification designating means for designating a plurality of different multiplication factors;
• and
• means for automatically detecting beats per minute of the input audio signal or a beat period of the input audio signal, changing said beats per minute or said beat period by multiplying the detected beats per minute or the detected beat period by a multiplication factor designated by the magnification designating means, and changing the tempo of the input audio signal in accordance with the changed beats per minute or the changed beat period.

An audio signal processing apparatus which changes the tempo of an input audio signal, said apparatus comprising:

• a magnification designating device which designates a plurality of different multiplication factors;
• and
• a device which automatically detects beats per minute of the input audio signal or a beat period of the input audio signal, changes said beats per minute or said beat period by multiplying the detected beats per minute or the detected beat period by a multiplication factor designated by the magnification designating device, and changes the tempo of the input audio signal in accordance with the changed beats per minute or the changed beat period.

An audio signal processing apparatus capable of changing the tempo of an input audio signal, said apparatus comprising:

• magnification designating means for designating a plurality of different magnification increments, said different magnification increments being at least 1/n, wherein n is an integer not equal to 1;
• means for automatically detecting beats per minute of the input audio signal or a beat period of the input audio signal, changing said beats per minute or said beat period by applying to the detected beats per minute or the detected beat period a magnification increment designated by the magnification designating means, and changing the tempo of the input audio signal in accordance with the changed beats per minute or the changed beat period.

An audio signal processing apparatus which changes the tempo of an input audio signal, said apparatus comprising:

• a magnification designating device which designates a plurality of different magnification increments, said different magnification increments being at least 1/n, wherein n is an integer not equal to 1;
• a device which automatically detects beats per minute of the input audio signal or a beat period of the input audio signal, changes said beats per minute or said beat period by applying to the detected beats per minute or the detected beat period a magnification increment designated by the magnification designating device, and changes the tempo of the input audio signal in accordance with the changed beats per minute or the changed beat period.