Audio switcher

Abstract

The utility model discloses an audio switcher, which comprises a shell and an audio switching circuit arranged in the shell, the audio switching circuit comprises a real-time signal display module, and the real-time signal display module comprises a first channel level indicator lamp and a second channel level indicator lamp. The first channel level indicator lamp and the second channel level indicator lamp are arranged on one end face of the shell. Compared with the prior art, the audio switcher ensures that the working efficiency is improved and the audio quality is accurately controlled.

Description

Technical Field

[0001] This utility model relates to the field of audio control, and in particular to an audio switcher. Background Technology

[0002] During the audio signal input process, the lack of an eight-channel signal display screen to show the level signal in real time brings great inconvenience and difficulty to observing the input audio signal, which in turn has many negative impacts on the overall audio workflow, seriously hindering the improvement of work efficiency and the accurate control of audio quality.

[0003] Therefore, based on the above problems, it is necessary to improve the existing audio switcher to solve these problems. Utility Model Content

[0004] In view of the problems existing in the prior art, the present invention provides an audio switcher to ensure improved work efficiency and precise control of audio quality.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0006] An audio switcher includes: a housing and an audio switching circuit disposed within the housing. The audio switching circuit includes a real-time signal display module, which includes a first channel level indicator and a second channel level indicator. The first channel level indicator and the second channel level indicator are disposed on one end face of the housing.

[0007] Preferably, the audio switching circuit further includes an audio signal input module, an audio signal output module, an audio signal control module, an indicator light module, and a power supply module;

[0008] The input terminal of the audio signal output module, the output terminal of the audio signal output module, and the audio signal control module are located on the rear end face of the housing, while the indicator light module, the real-time signal display module, and the switch are located on the front panel.

[0009] Preferably, the input terminal of the audio signal output module is connected to the output terminal of the audio signal input module, the input terminal of the audio signal output module is connected to the real-time signal display module, the output terminal of the audio signal output module is connected to an external device, the input terminal of the audio signal input module is connected to the output terminals of the power module and the audio signal control module, and the input terminal of the indicator light module is connected to the positive terminal of the power module.

[0010] Preferably, the audio signal input module includes an audio signal input terminal and an audio signal input circuit. The input terminal of the audio signal input circuit is connected to the output terminal of the audio signal control module, the output terminal of the audio signal input circuit is connected to the audio signal input terminal, and the audio signal input terminal is connected to an external signal source.

[0011] Preferably, the audio signal input circuit includes resistor R5, resistor R7, transistor Q1, diode D5, and a switch. The output terminal of the audio signal control module is connected to resistor R5. The other end of resistor R5 is connected to resistor R7 and the base of transistor Q1. The other end of resistor R7 and the emitter of transistor Q1 are grounded. The collector of transistor Q1 is connected to the anode of diode D5 and pin 8 of the switch. The cathode of diode D5 is connected to the power supply and pin 1 of the switch. Pin 2 of the switch is connected to pin 2 of connector 5 of the audio signal output module. Pin 3 of the switch is connected to pin 2 of connector 4 of the audio signal input terminal. Pin 4 of the switch is connected to pin 2 of connector 3 of the audio signal input terminal. Pin 5 of the switch is connected to pin 3 of connector 3 of the audio signal input terminal. Pin 6 of the switch is connected to pin 3 of connector 4 of the audio signal input terminal. Pin 7 of the switch is connected to pin 3 of connector 5 of the audio signal output module.

[0012] Preferably, the audio signal control module includes capacitor C5, capacitor C6, and the 15th connector. The first pin of the 15th connector is connected to the input terminal of the audio signal input circuit via capacitors C5 and C6. The other end of capacitors C5 and C6 is grounded. The second pin of the 15th connector is grounded. The third pin of the 15th connector is connected to the power supply module.

[0013] Preferably, the power module includes a first power supply and a second power supply;

[0014] The indicator module includes a power indicator, a first-channel indicator, and a second-channel indicator;

[0015] The audio signal input circuit is a multi-channel parallel input;

[0016] The audio signal output module includes a XLR output interface, a first channel output interface, and a second channel output interface;

[0017] The housing is also provided with a first expansion interface and a second expansion interface.

[0018] Compared with the prior art, this utility model has the following advantages:

[0019] To ensure improved work efficiency and precise control of audio quality. Attached Figure Description

[0020] Figure 1 This is a perspective view of an audio switcher according to this application.

[0021] Figure 2 This is a front view of an audio switcher according to this application.

[0022] Figure 3 This is a rear view of an audio switcher according to this application.

[0023] Figure 4 This is a schematic diagram of the audio switching circuit.

[0024] Figure 5 This is a circuit diagram of the audio signal input circuit.

[0025] Figure 6 This is the circuit diagram of the audio signal control module.

[0026] Figure 7 This is the circuit diagram for the indicator light module.

[0027] Figure 8 This is the circuit diagram of the power supply module.

[0028] The reference numerals in the attached diagram are as follows: 1. First channel level indicator; 2. Second channel level indicator; 3. Power indicator; 4. First channel indicator; 5. Second channel indicator; 6. Switch; 7. First power supply; 8. Second power supply; 9. First expansion interface; 10. Second expansion interface; 11. XLR output interface; 12. First channel output interface; 13. Second channel output interface; 14. Housing. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-8 The specific embodiments of this utility model will be further described in detail to make the technical solution of this utility model easier to understand and master.

[0030] In this embodiment, it should be understood that the terms "middle", "upper", "lower", "top", "right side", "end", "front", "back", "center", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] Furthermore, unless otherwise specified in this specific embodiment, the connection or fixing method between components can be achieved by bolt fixing, pin fixing, or pin connection commonly used in the prior art. Therefore, it will not be described in detail in this embodiment.

[0032] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0033] like Figure 1-3 As shown, an audio switcher includes a housing 14 and an audio switching circuit disposed within the housing 14. The audio switching circuit includes a real-time signal display module, which includes a first channel level indicator 1 and a second channel level indicator 2. This real-time signal display module features RASDT (Real-time Audio Signal Display Technology). When an input signal is received, the first channel level indicator 1 and the second channel level indicator 2 display the level signal in real time, thereby ensuring improved work efficiency and precise control of audio quality. These two indicator lights are positioned on one end face of the housing 14 so that the user can intuitively observe the real-time status of the audio signal.

[0034] like Figure 4 As shown, the audio switching circuit further includes an audio signal input module, an audio signal output module, an audio signal control module, an indicator light module, and a power supply module. These modules work together to ensure that the audio switcher can efficiently and accurately complete the switching and processing of audio signals.

[0035] The input terminal of the audio signal output module, the output terminal of the audio signal output module, and the audio signal control module are located on the rear end face of the housing 14, while the indicator light module, the real-time signal display module, and the switch 6 are located on the front panel. This not only facilitates user operation but also makes the internal structure of the audio switcher more reasonable.

[0036] like Figure 5-8 As shown, the input terminal of the audio signal output module is connected to the output terminal of the audio signal input module, which is also connected to the real-time signal display module. The output terminal of the audio signal output module is used to connect to external devices to output the processed audio signal. The input terminal of the audio signal input module is connected to the output terminals of the power module and the audio signal control module, while the input terminal of the indicator light module is connected to the positive terminal of the power module, ensuring the normal operation of the entire audio switcher.

[0037] The audio signal input module includes an audio signal input terminal and an audio signal input circuit. The input terminal of the audio signal input circuit is connected to the output terminal of the audio signal control module, and the output terminal is connected to the audio signal input terminal. The audio signal input terminal is used to connect to an external signal source. The design of the audio signal input circuit ensures that the audio signal can be accurately received and processed.

[0038] The audio signal input circuit includes resistors R5 and R7, transistor Q1, diode D5, and switch 6. Switch 6 is a dual DC relay RY136-K, a first-class quality relay providing high-performance audio characteristics, capable of handling audio level signals up to +28dBu, and also serving as a safety protection circuit. The output terminal of the audio signal control module is connected to resistor R5. The other end of resistor R5 is connected to resistor R7 and the base of transistor Q1. The other end of resistor R7 and the emitter of transistor Q1 are grounded. The collector of transistor Q1 is connected to the anode of diode D5 and pin 8 of switch 6. The cathode of diode D5 is connected to the power supply and pin 1 of switch 6. Pin 2 of switch 6 connects to pin 2 of connector 5 of the audio signal output module; pin 3 connects to pin 2 of connector 4 of the audio signal input module; pin 4 connects to pin 2 of connector 3 of the audio signal input module; pin 5 connects to pin 3 of connector 3 of the audio signal input module; pin 6 connects to pin 3 of connector 4 of the audio signal input module; and pin 7 connects to pin 3 of connector 5 of the audio signal output module. Users can use switch 6 to switch the audio input signal, enabling flexible handling of audio signals from different sources.

[0039] The audio signal control module includes capacitors C5 and C6, and connector 15. Pin 1 of connector 15 connects to capacitors C5 and C6, as well as the input terminal of the audio signal input circuit. The other ends of capacitors C5 and C6 are grounded. Pin 2 of connector 15 is grounded, and pin 3 is connected to the power supply module. This design ensures that the audio signal control module can effectively control the transmission and processing of audio signals. Two audio signals are input from the audio signal input module, and the user can select and control them via switch 6 or the audio signal control module. The selected audio signal is sent to an external playback device through the audio signal output module, thus switching between primary and backup signals. The user selects the input signal source as needed. Compared to existing audio switching circuits, this design is simpler, reduces hardware costs and power consumption, and ensures effective control of audio signal transmission and processing.

[0040] like Figure 1-3 As shown, the power module includes a first power supply 7 and a second power supply 8, which provide a stable power supply for the audio switcher, allowing users to use other power inputs according to their actual needs.

[0041] The indicator module includes a power indicator 3, a first channel indicator 4, and a second channel indicator 5. The indicator module is used to indicate the audio signal selected by the user, facilitating monitoring and operation. When the switch 6 is switched to the first audio signal, the corresponding first power supply 7 enters the working state, supplying power to the circuit. The first indicator light remains constantly lit, and when the first audio signal is input, the first audio signal real-time indicator displays the level signal. If the user needs to switch to the second audio signal, pressing the switch 6 stops the first power supply 7 from supplying power, and the second power supply 8 starts working. The first indicator light then turns off, and the second indicator light remains constantly lit. When the second audio signal is input, the second audio signal real-time indicator displays the level signal.

[0042] The audio signal input circuit is a multi-channel parallel input, specifically an eight-channel parallel input. This means that the audio switcher can process audio signals from multiple signal sources simultaneously, greatly improving the flexibility and efficiency of the device.

[0043] The housing 14 is also provided with a first expansion interface 9 and a second expansion interface 10. These expansion interfaces provide the audio switcher with additional functional expansion capabilities, enabling it to adapt to more diverse usage scenarios.

[0044] The audio signal output module includes an XLR output interface 11, a first channel output interface 12, and a second channel output interface 13. These output interfaces can meet the connection requirements of different audio devices and ensure that the audio signal can be smoothly output to external devices.

[0045] In summary, the various modules of this audio switcher work together to ensure high quality and efficiency of audio signals during input, processing, and output, providing users with a good user experience.

[0046] The main technical effects of this utility model are reflected in the following aspects:

[0047] To ensure improved work efficiency and precise control of audio quality.

[0048] Of course, the above are just typical examples of this utility model. In addition, this utility model may have many other specific implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed by this utility model.

Claims

1. An audio switcher, characterized in that, include: The housing and an audio switching circuit disposed within the housing, the audio switching circuit including a real-time signal display module, the real-time signal display module including a first channel level indicator and a second channel level indicator, the first channel level indicator and the second channel level indicator being disposed on one end face of the housing.

2. The audio switcher as described in claim 1, characterized in that, The audio switching circuit also includes an audio signal input module, an audio signal output module, an audio signal control module, an indicator light module, and a power supply module; The input terminal of the audio signal output module, the output terminal of the audio signal output module, and the audio signal control module are located on the rear end face of the housing, while the indicator light module, the real-time signal display module, and the switch are located on the front panel.

3. The audio switcher as described in claim 2, characterized in that, The input terminal of the audio signal output module is connected to the output terminal of the audio signal input module. The input terminal of the audio signal output module is connected to the real-time signal display module. The output terminal of the audio signal output module is connected to an external device. The input terminal of the audio signal input module is connected to the output terminals of the power module and the audio signal control module. The input terminal of the indicator light module is connected to the positive terminal of the power module.

4. The audio switcher as described in claim 3, characterized in that, The audio signal input module includes an audio signal input terminal and an audio signal input circuit. The input terminal of the audio signal input circuit is connected to the output terminal of the audio signal control module, and the output terminal of the audio signal input circuit is connected to the audio signal input terminal. The audio signal input terminal is connected to an external signal source.

5. The audio switcher as described in claim 4, characterized in that, The audio signal input circuit includes resistors R5 and R7, transistor Q1, diode D5, and a switch. The output terminal of the audio signal control module is connected to resistor R5. The other end of resistor R5 is connected to resistor R7 and the base of transistor Q1. The other end of resistor R7 and the emitter of transistor Q1 are grounded. The collector of transistor Q1 is connected to the anode of diode D5 and pin 8 of the switch. The cathode of diode D5 is connected to the power supply and pin 1 of the switch. Pin 2 of the switch is connected to pin 2 of connector 5 of the audio signal output module. Pin 3 of the switch is connected to pin 2 of connector 4 of the audio signal input terminal. Pin 4 of the switch is connected to pin 2 of connector 3 of the audio signal input terminal. Pin 5 of the switch is connected to pin 3 of connector 3 of the audio signal input terminal. Pin 6 of the switch is connected to pin 3 of connector 4 of the audio signal input terminal. Pin 7 of the switch is connected to pin 3 of connector 5 of the audio signal output module.

6. The audio switcher as described in claim 4, characterized in that, The audio signal control module includes capacitor C5, capacitor C6, and connector 15. The first pin of connector 15 is connected to capacitors C5 and C6 and the input terminal of the audio signal input circuit. The other end of capacitors C5 and C6 is grounded. The second pin of connector 15 is grounded. The third pin of connector 15 is connected to the power supply module.

7. The audio switcher as described in claim 4, characterized in that, The power module includes a first power supply and a second power supply; The indicator module includes a power indicator, a first-channel indicator, and a second-channel indicator; The audio signal input circuit is a multi-channel parallel input; The audio signal output module includes a XLR output interface, a first channel output interface, and a second channel output interface; The housing is also provided with a first expansion interface and a second expansion interface.

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