Method and apparatus for adjusting the cadence of music on a personal audio device

• US 20100089224A1
• Filed: 10/15/2008
• Published: 04/15/2010
• Est. Priority Date: 10/15/2008
• Status: Active Grant

• Current Assignee: Avago Technologies International Sales Pte Limited (Broadcom, Inc.)
• Original Assignee: Agere Systems Incorporated (Broadcom, Inc.)
• Inventors: Hollien, Cathy Lynn, Martin, Arlen R., Fratti, Roger A.
• Granted Patent: US 7,915,512 B2
• Time in Patent Office: Days
• US Class Current: 84/612
• CPC Class Codes: G10H 1/40 Rhythm
• CPC Class Codes: G10H 2210/391 Automatic tempo adjustment, correction or control
• CPC Class Codes: G10H 2220/371 Vital parameter control, i.e. musical instrument control based on body signals, e.g. brainwaves, pulsation, temperature, perspiration; biometric information signals from body positions or movements G10H2220/321

Abstract

Disclosed is an audio device that adjusts the cadence of played songs. A user sensor determines cadence data based on movement of the user. A desired cadence is determined based on the cadence data received from the sensor. The cadence of songs is determined by low pass filtering digital representations of the songs and determining the period (T) of the back beat of the songs. An adjustment of the period (T) of the songs is then determined such that the adjustment of the period (T) of the songs results in the songs having the desired cadence. The period (T) of the back beat of the subsequent songs are then adjusted.

Claims

1. A method for adjusting the cadence of songs played on a personal audio device comprising the steps of:

receiving cadence data from a user sensor;

determining a desired cadence based on said received cadence data; and

adjusting the cadence of at least one song to match said desired cadence.

2. The method of claim 1 wherein said cadence data is received from a sensor associated with a user'"'"'s shoe.

3. The method of claim 1 wherein said cadence data is received from a sensor integrated in an exercise machine.

4. The method of claim 1 wherein said step of adjusting the cadence of at least one song to match said desired cadence further comprises the steps of:

low pass filtering a digital representation of said at least one song;

determining a period (T) of the back beat of said at least one song; and

determining an adjustment of said period (T) of the back beat of said at least one song.

5. The method of claim 4 further comprising the step of:

interpolating a digital representation of said at least one song if said adjustment is an increase to said period (T).

6. The method of claim 4 further comprising the step of:

decimating a digital representation of said at least one song if said adjustment is a decrease to said period (T).

7. A personal audio device for adjusting the cadence of played songs comprising:

a memory for storing digital representations of songs;

a desired cadence determination circuit for determining a desired cadence based on received cadence data;

a low pass filter for receiving a digital representation of at least one song and generating a first signal;

a period determination circuit for receiving said first signal and determining a period (T) of the back beat of said at least one song;

a period adjustment circuit for receiving said period (T) of the back beat of said at least one song and said desired cadence, and determining a period adjustment signal based on the period (T) of the back beat of said at least one song and said desired cadence; and

a CODEC for receiving said adjustment signal and said digital representation of said at least one song and adjusting the cadence of said at least one song based on said period adjustment signal.

8. The personal audio device of claim 7 wherein said period adjustment signal specifies interpolation of the digital representation of said at least one song in order to increase said period (T) of the back beat of said at least one song.

9. The personal audio device of claim 7 wherein said period adjustment signal specifies decimation of the digital representation of said at least one song in order to decrease said period (T) of the back beat of said at least one song.

10. Apparatus for adjusting the cadence of songs played on a personal audio device comprising:

means for receiving cadence data from a user sensor;

mean for determining a desired cadence based on said received cadence data; and

means for adjusting the cadence of at least one song to match said desired cadence.

11. The apparatus of claim 10 wherein said user sensor is associated with a user'"'"'s shoe.

12. The apparatus of claim 10 wherein said user sensor is integrated with an exercise machine.

13. The apparatus of claim 10 wherein said means for adjusting the cadence of at least one song to match said desired cadence further comprises:

means for low pass filtering a digital representation of said at least one song;

means for determining a period (T) of the back beat of said at least one song; and

means for determining an adjustment of said period (T) of the back beat of said at least one song.

14. The apparatus of claim 13 further comprising:

means for interpolating a digital representation of said at least one song if said adjustment is an increase to said period (T).

15. The apparatus of claim 13 further comprising:

means for decimating a digital representation of said at least one song if said adjustment is a decrease to said period (T).