Patent Application
20130269503
1. Field of the Invention
The present invention relates to a conversion technology, and in particular to an audio-optical conversion device and conversion method thereof.
2. The Prior Arts
The commercial applications of LEDs started in the 60', and due to its various advantages of high light intensity, long service life, low power consumption, vibration proof, and low heat dissipation, it has been used widely in various products of our daily lives, such as indication lights or light source of household electric appliances and various instruments. In recent years, due to its characteristics of multi-color and high illumination, it has been used extensively in outdoor displayer, such as large-sized outdoor billboard, and traffic lights. Since red, blue, and green are the three original colors, such that for a full-color outdoor billboard, blue or green LEDs of high illumination are indispensable.
In the prior art, in general, LED lighting system is utilized in large plaza, billboard, or other locations applicable, such as restaurants, auditoriums, pubs, or concert halls. However, on such occasions, the lighting effect is controlled manually, or by electrical circuits, and signals processed by micro-chips are used to drive LEDs, therefore illumination variations of LED lights can not be realized in synchronization with that of the audio effect, such that it may either lag behind or proceed in advance. In other words, in practical application on the scene, the lighting effects can not work in synchronism with the audio effects, to achieve a sense of stereo and in-depth of the real scene, so that the overall audio-optical effects produced on the scene are not quite satisfactory.
Therefore, presently, the design and performance of audio and optical devices are not quite satisfactory, and it has much room for improvements.
In view of the problems and drawbacks of the prior art, the present invention provides an audio-optical conversion device and conversion method thereof, so as to overcome the shortcomings of the prior art.
A major objective of the present invention is to provide an audio-optical conversion device and conversion method thereof. Wherein, an audio intensity identifier is used to identify from a sound signal the audio signals of various frequencies and volume intensities, and to produce optical signals of various colors and illuminations, in achieving a lively, ideal, and in-depth audio-optical effect of the real scene.
In order to achieve the objective mentioned above, the present invention provides an audio-optical conversion device, comprising: a plurality of audio intensity identifier, a plurality of light source drivers, and a plurality of light emitting elements. Wherein, the audio intensity identifier is used to receive a sound signal, to identify from the sound signal the audio signals of various frequencies and volume intensities, and then output the audio signals. Each of the audio intensity identifiers is connected directly to each light source driver, such that each light source driver receives the corresponding audio signal and converts it to an electrical signal. Each of the light source drivers is connected to each of the light emitting elements, such that each light emitting element receives the corresponding electrical signal, and generates a corresponding optical signal. Wherein, the higher the frequency of the audio signal, the cooler the color of the corresponding optical signal; the lower the frequency of the audio signal, the warmer the color of the corresponding optical signal. Moreover, the greater the volume intensity of the audio signal, the brighter the corresponding optical signal; and the smaller the volume intensity of the audio signal, the dimmer the corresponding optical signal.
The present invention also provides an audio-optical conversion method, comprising the following steps. Firstly, the audio intensity identifier receives a sound signal, identifies from it a plurality of audio signals of various frequencies and volume intensities, and then outputs the audio signals. Then, the light source driver receives the audio signal, and converts it into a corresponding electrical signal. Finally, the light emitting element receives the electrical signal and converts it into an optical signal. Wherein, the higher the frequency of the audio signal, the cooler the color of the corresponding optical signal; the lower the frequency of the audio signal, the warmer the color of the corresponding optical signal. Furthermore, the greater the volume intensity of the audio signal, the brighter the corresponding optical signal; and the smaller the volume intensity of the audio signal, the dimmer the corresponding optical signal.
Further scope of the applicability of the present invention will become apparent from the detailed descriptions given hereinafter. However, it should be understood that the detailed descriptions and specific examples, while indicating preferred embodiments of the present invention, are given by way of illustration only, since various changes and modifications within the spirit and scope of the present invention will become apparent to those skilled in the art from this detailed descriptions.
The related drawings in connection with the detailed descriptions of the present invention to be made later are described briefly as follows, in which:
The purpose, construction, features, functions and advantages of the present invention can be appreciated and understood more thoroughly through the following detailed descriptions with reference to the attached drawings.
Refer to
In the following, refer to
In the present invention, different optical signals correspond to different colors, that can be classified into warm colors, such as red, orange, yellow, and pink; and cool colors, such as cyan, blue, purple, green, aquamarine, and black. In the present invention, frequency of audio signal is related to color of corresponding optical signal. By way of example, bass drum is of a low frequency of 40˜50 Hz, bass is of a middle low frequency of 70˜280 Hz, soprano is of a middle frequency of 280˜900 Hz, cymbal is of a middle frequency of 400˜1000 Hz, and piccolo is of a middle high frequency of 600˜3500 Hz. Through combining the sounds and voices mentioned above into music, to serves as a sound signal. Then, upon receiving and processing the sound signal by the audio intensity identifiers 101˜105, the audio signals thus obtained can be filtered to produce sounds and voices of various frequencies mentioned above. Refer to
In addition, it can be set to a scheme that, the lower the frequency of the audio signal, the cooler the color of the corresponding optical signal; and the higher the frequency of the audio signal, the warmer the color of the corresponding optical signal. As shown in
In case the respective audio signals are of different volume intensities, then as shown in
In addition, it can be set to a scheme that, the greater the volume intensity of the audio signal, the dimmer the optical signal; and the less the volume intensity of the audio signal, the brighter the optical signal. This situation is as shown in
Summing up the above, in the present invention, an analog approach is adopted to generate optical signals in synchronism with audio signals, in achieving a more ideal audio-optical effect.
The above detailed description of the preferred embodiment is intended to describe more clearly the characteristics and spirit of the present invention. However, the preferred embodiments disclosed above are not intended to be any restrictions to the scope of the present invention. Conversely, its purpose is to include the various changes and equivalent arrangements which are within the scope of the appended claims.
