Musical beat detection system and method for lighting control
AssigneeFourstar Group Inc.
InventorMichael Weibin Zhang
Life of this patent
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Abstract
A system for controlling a plurality of light sources particularly LED's that are provided in a number of different arrangements including a light string and controlled from a controller that includes an input microphone for detecting an audio signal, at least one pre-amplifier, a microcomputer unit receiving signals from the pre-amplifier, and a circuit for driving a plurality of LED and that enables lighting control of the plurality of LED's in accordance with the input audio signal and within a wide dynamic range.
Claims24
A system for controlling a plurality of light sources that are provided as a light array that is controlled from a controller that includes an input microphone for detecting an input audio signal, first and second series-connected pre-amplifiers, a microcomputer unit receiving signals from the pre-amplifiers, and a circuit for driving a plurality of light sources and that enables lighting control of the plurality of light sources in accordance with the input audio signal from the microphone and within a wide dynamic range.
A method for controlling lighting by audio, including:
- receiving audio signals and amplifying said audio signals;
- detecting any waveform with a level greater than a predefined level threshold and calculate the lasting time (T1) of the detected waveform;
- comparing the lasting time T1 to a predefined time threshold (TTH), and if greater then keep the waveform as one bass waveform, or otherwise discard the waveform;
- counting the number of bass waveform within a pre-defined time window BTW to determine a bass beat;
- and
- using the bass beat to control lighting, and
- wherein the step of amplifying the audio signals includes providing first and second series-connected pre-amplifiers.
A system for lighting control using sound, comprising:
- a microphone for receiving audio signals,
- first and second series-connected preamplifiers for amplifying said audio signals,
- a controller for detecting bass beat information from said audio signals and adjusting beat information in order to control lights,
- a light driver for driving the lights, and
- lights,
- wherein, in a first mode of operation, both pre-amplifiers provide additive amplification of the input audio signal, and wherein, in a second mode or operation, only the first pre-amplifier provides amplification of the input audio signal.
A system for lighting control using sound, comprising:
- a microphone for receiving audio signals,
- a preamplifier for amplifying said audio signals,
- a controller for detecting bass beat information from said audio signals and adjusting beat information in order to control lights,
- a light driver for driving the lights, and
- a plurality of light sources connected in a light array,
- wherein the light array is controlled from separate control channels A and B, using one of the following to be selected;
- I) Chase—A/B chase is activated by beats, when A is ON, B is OFF;
- when B is ON, A is OFF
- ii) Shine—Both A and B shine brighter with the beats
- iii) Wave—A shines brighter with the beats but B shines dimmer with beats
- iv) Strobe—B shines brighter with the beats, A becomes strobe lights
- v) Twinkle—Both A and B shine dimmer with the beats.
Dependencies are inferred from the claim text.