Compressor system with EQ

Abstract

The utility model provides a compressor system with an equalizer (EQ). The compressor system includes a signal input device in signal communication with the EQ and a compressor. The compressor system further includes a signal output device in signal communication with the compressor. The compressor includes a signal detection module. In the system, an electrical level threshold of a full-band audio signal is setup in the compressor, and the value of electrical level of the input signal is detected by the signal detection module. After comparison of electrical level threshold and the value of electrical level, the system determines whether the compressor is activated or deactivated. The system can achieve the technology effect of effectively compressing and limiting the audio signal of a different frequency.

Claims

1. A compressor system with an equalizer (EQ), the compressor system comprising: a signal input device; an equalizer in signal communication with the signal input device to receive a first input signal, and to generate an equalized signal based on the input signal; a compressor in signal communication with the signal input device to receive a second input signal, the compressor including a signal detection module in signal communication with the equalizer; and a signal output device in signal communication with the compressor to receive one of a first output signal or a second output signal, wherein the compressor includes a signal detection module to perform audio signal processing of the compressor system with EQ based on operations comprising: outputting, via the signal input device, the first input signal and the second input signal to the compressor in parallel and at the same time, the second input signal being identical to the first input signal, and the second input signal is input to the compressor directly, while the first input signal is regulated by the equalizer to generate the equalized signal; outputting, via the equalizer, the equalized signal to the compressor, and detecting the equalized signal via the signal detection module, wherein an electrical level threshold of a full-band audio signal is setup in the compressor; and comparing a value of an electrical level of the equalized signal detected by the signal detection module to the electrical level threshold of corresponding frequency, in response to the value of electrical level of the equalized signal being greater than or equal to the electrical level threshold, wherein the compressor is triggered to compress and limit the second input signal, and in response to being triggered processes the second input signal to generate the output signal and outputs the output signal to the signal output device, and wherein, in response to the value of electrical level of the input signal being less than electrical level threshold, the compressor is not triggered to process the second input signal, generates a second output signal based on the second input signal, and outputs the second output signal to the signal output device.

2. The compressor system with EQ as claimed in claim 1, wherein the range of the full-band audio signal is from 20 Hz to 20 kHz.

3. The compressor system with EQ as claimed in claim 1, wherein the signal input device at least includes one of a mobile phone, a compact disc (CD) player, a digital video disc (DVD) player, a recorder, or a mobile media device.

4. The compressor system with EQ as claimed in claim 1, wherein the signal output device includes at least one of a sound-box, a loudspeaker or a headset.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) 1. FIG. 1 is a principle diagram of a compressor system with EQ in accordance with an embodiment of the utility model.

(2) 2. FIG. 2 is a working diagram of a compressor system with EQ in accordance with an embodiment of the utility model.

DETAILED DESCRIPTION

(3) In order to fully comprehend the features and efficacy of the present utility model, a detailed description is described by the following substantial embodiments in conjunction with the accompanying drawings. The description is as below.

(4) Referring to FIG. 1, a compressor system with EQ is illustrated in accordance with a non-limiting embodiment. The compressor system with EQ comprises a signal input device 1, an equalizer 2, a compressor 3, and a signal output device 4. The compressor 3 includes a signal detection module 31.

(5) The signal input device 1, such as CD, DVD, or other type of mobile media device, sends out two-way input signal to compressor 3 parallelly, that is input signal (a) and input signal (b). Signal (a) is identical to input signal (b). For example, in the frequency of approximately 180 Hz, both of the electric levels of input signal (a) and input signal (b) are 5 dB. However, input signal (a) is input to the compressor 3 directly, while input signal (b) is adjusted with signal gain by the equalizer 2 then input to the compressor 3 in the form of input signal (b1), and detected by the signal detection module 31. The function of equalizer 2 is to adjust the value of signal gain or attenuation of every frequency. In this embodiment, for example, the value of electric level of input signal (b) is 5 dB, and after attenuation processing (5 dB) adjusted by equalizer 2, the value of electric level of input signal (b1) is only 0 dB. Then input signal (b1) is input to compressor 3.

(6) Now referring to FIG. 2, different electrical levels threshold of full-band audio signal whose range is 20 Hz to 20 kHz, for example, are setup in the compressor 3. In at least one non-limiting embodiment, the electrical level threshold of 180 Hz is setup as 5 dB, for example. The value of the electric level of input signal (b1), e.g., 0 dB is compared to the electrical level threshold, e.g., 5 dB. As the value of electric level of input signal (b1) e.g., 0 dB is less than the electrical level threshold, e.g., 5 dB, the compressor 3 isn't triggered (i.e., is deactivated) and thus does not compress and does not limit the input signal (a). Accordingly, input signal (a) is maintained as the output to the signal output device in the form of output signal (a).

(7) A tuner may also be provided that enhances both of the electrical level of input signal (a) and input signal (b) from 5 dB to 10 dB in the frequency of 180 Hz. Input signal (b) is attenuated (5 dB) by the equalizer 2, then is input to the compressor 3 in the form of input signal (b1) (5 dB). In the compressor 3, the electrical level threshold of 180 Hz is still 5 dB. The value of electric level of input signal (b1), e.g., 5 dB, is equal to the electrical level threshold, e.g., 5 dB. Accordingly, the compressor (3) is triggered (i.e., activated) to compress and limit the input signal (a). The processed input signal (a) is then output to the signal output device 4 in the form of output signal (a1).

(8) To further describe the signal output device 4, it includes, for example, at least one of the sound-box, loudspeaker or headset. After processed by the compressor system, the audio signal is received by the signal output device 4 with the characteristic of high fidelity and controllability. On account of the features, it meets the requirement of audio signal adjustment and achieves a wide range of application in audio signal processing.

(9) For ease of illustration, electric level threshold of full-band audio signal is setup as a constant value in the compressor normally. When every frequency point's volume is greater than the electric level threshold, the curve of the output signal is close to a straight line without the trigger processing by the compressor. It doesn't achieve the efficacy of audio signal's adjustment.

(10) The present utility model is disclosed according to preferred non-limiting embodiment in the aforementioned description; however, it is contemplated for one skilled at the art that the embodiments are applied only for an illustration of the present utility model rather than are interpreted as a limitation for the scope of the present utility model. It should be noted that the various substantial alternation or replacement equivalent to these embodiments shall be considered as being covered within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be defined by the claims.