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US 8,802,954 B2Granted
System and method for controlling audio source
AssigneeN2IT Holding B.V.
InventorMark-Jan Bastian
Life of this patent
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Abstract
An apparatus for signal processing, wherein a disc is placed on a turntable and is provided with a groove which can be followed by the pick-up element, and employing a time-code signal wherein during use of the disc the said time-code signal controls the digital audio source.
Claims24
A method of signal processing for controlling a sound source, comprising:
- deriving a time code signal from a rotating disc, the derived time code signal comprising an absolute time code signal in the audible range;
- filtering the derived time code signal to determine a relative time code signal;
- determining the speed of rotation of the rotating disc based on the absolute time code signal;
- and
- determining a place on the rotating disc based on the relative time code signal,
- wherein the absolute time code signal and the relative time code signal are used to control output from the sound source.
3 more elements
A method for controlling an audio source, comprising:
- deriving a time code signal from a rotating disc, the derived time code signal comprising an absolute time code signal in the audible range;
- filtering the derived time code signal to determine a relative time code signal;
- controlling the speed of rotation of an audio source based on the absolute time code signal;
- and
- controlling the direction of rotation of the audio source based on the relative time code signal.
2 more elements
A method for creating a time code disc for controlling an audio source, comprising:
- generating an absolute time code signal;
- and
- applying the absolute time code signal to a disc,
- wherein the absolute time code signal is in the audible range,
- wherein the absolute time code signal includes a right channel and a left channel, and
- wherein a relative time code signal can be determined based on a phase difference between the right channel and the left channel.
3 more elements
A system for controlling a sound source, comprising:
- a pick-up element deriving a time code signal from a rotating disc, the derived time code signal comprising an absolute time code signal in the audible range;
- a filter determining a relative time code signal from the absolute time code signal;
- and
- an output filter controlling reproduction of sound from a sound source,
- wherein the speed of rotation of the sound source is based on the absolute time code signal, and
- wherein the direction of rotation of the sound source is based on the relative time code signal.
3 more elements
A disc for use in an apparatus for reproduction of sound, comprising:
- a disc configured for playing on a rotatable player, the disc including a time code;
- an absolute time code in the audible range which, when the disc is played on the player, is representative of the speed and direction of play of the disc;
- and
- a relative time code detected from the absolute time code,
- wherein the absolute time code is used to control the speed of play of a sound device for the reproduction of sound, and
- wherein the relative time code is used to control the direction of play of the sound device for the reproduction of sound.
3 more elements
Dependencies are inferred from the claim text.