Method and apparatus for adjusting the cadence of music on a personal audio device
First Claim
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1. An apparatus for adjusting the cadence of played songs comprising:
- a desired cadence determination circuit for determining a desired cadence based on received cadence data;
a period determination circuit for determining a period of a back beat of at least one song;
a period adjustment circuit for receiving said period of the back beat of said at least one song and said desired cadence, and determining a period adjustment signal based on the period 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;
wherein the cadence is adjusted by an amount determined as a function of said period of the back beat of said at least one song, said desired cadence and a clock rate of the CODEC.
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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.
79 Citations
20 Claims
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1. An apparatus for adjusting the cadence of played songs comprising:
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a desired cadence determination circuit for determining a desired cadence based on received cadence data; a period determination circuit for determining a period of a back beat of at least one song; a period adjustment circuit for receiving said period of the back beat of said at least one song and said desired cadence, and determining a period adjustment signal based on the period 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; wherein the cadence is adjusted by an amount determined as a function of said period of the back beat of said at least one song, said desired cadence and a clock rate of the CODEC. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for adjusting the cadence of played songs, the method comprising the steps of:
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determining a desired cadence based on received cadence data; determining a period of a back beat of at least one song; determining a period adjustment signal based on the period of the back beat of said at least one song and said desired cadence; and adjusting the cadence of said at least one song based on said period adjustment signal; wherein the cadence is adjusted by an amount determined as a function of said period of the back beat of said at least one song, said desired cadence and a clock rate of a CODEC. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification