Room reverberation simulation device suitable for wired earphone microphone

Abstract

The utility model belongs to the technical field of room reverberation simulation, and particularly relates to a room reverberation simulation device suitable for a wired earphone microphone, which comprises an audio processing chip, an earphone assembly, a microphone, a sound effect switch, a sound effect switching key, a power conversion circuit and a connecting assembly. The earphone assembly, the microphone, the sound effect switch and the sound effect switching key are respectively connected to the audio processing chip; the audio processing chip is connected to the host through the connecting assembly; the input end of the power conversion circuit is connected with an input power supply through the connecting assembly, and the output end of the power conversion circuit is connected to the power end of the audio processing chip. The utility model has the advantages of low power consumption, small volume and capability of meeting diversified requirements.

Description

Technical Field

[0001] This invention belongs to the field of simulated room reverberation technology, and in particular relates to a simulated room reverberation device suitable for wired headphone microphones. Background Technology

[0002] Reverb is a crucial element in audio processing, playing a vital role in enhancing the spatiality and realism of sound. In wired headphone microphone applications, providing high-quality reverb not only significantly enhances the user's auditory experience but also improves the professionalism and expressiveness of audio in recording, live streaming, and other scenarios.

[0003] Therefore, a room reverberation system and circuit are needed that not only achieves low power consumption and small size while ensuring high-quality reverberation effects, but also is easy to integrate. Such a system will meet the growing audio processing performance demands of modern wired headphone microphones, driving their widespread application in various professional and everyday settings. Currently, many traditional reverberation processing methods rely on hardware or basic digital signal processing (DSP) technology, which struggles to accurately reproduce complex room acoustics, resulting in potentially monotonous or unnatural output sound quality. Although the processing power of modern DSP chips has significantly improved, in some cases, generating high-quality reverberation effects may still introduce a certain delay, affecting the user's listening experience. Furthermore, complex audio algorithms place high demands on DSP chip resources, potentially leading to increased power consumption and device overheating, especially during prolonged use. Finally, hardware-based reverberation processing methods have limitations in terms of functional expansion and upgrades, making it difficult for users to easily obtain new sound effects or improved features. Existing reverberation systems are typically designed as fixed integrated modules, making seamless integration with different brands and models of wired headphone microphones difficult. While this universal design broadens the applicability of reverberation systems, it also increases compatibility issues when users switch between different devices.

[0004] Therefore, it is necessary to optimize the simulated room reverberation system to achieve low power consumption, small size, and meet diverse needs. Utility Model Content

[0005] In view of the technical problems existing in the background art, the present invention provides an analog room reverberation device suitable for wired headphone microphones, which can achieve low power consumption, small size and meet diverse needs.

[0006] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0007] An analog room reverberation device suitable for wired headphone microphones includes an audio processing chip, headphone assembly, microphone, sound effect switch, sound effect switching button, power conversion circuit and connection components;

[0008] The headphone assembly, the microphone, the sound effect switch, and the sound effect switching button are respectively connected to the audio processing chip;

[0009] The audio processing chip is connected to the host via the connection component;

[0010] The input terminal of the power conversion circuit is connected to the input power supply through the connection component, and the output terminal of the power conversion circuit is connected to the power supply terminal of the audio processing chip.

[0011] Preferably, the headphone assembly includes a left earphone and a right earphone, which are respectively connected to the audio processing chip.

[0012] Preferably, the connection component uses a USB interface, and the audio processing chip is connected to the host via the USB interface.

[0013] Preferably, the power supply of the host is connected to the input terminal of the power conversion circuit via the USB interface.

[0014] Preferably, the power conversion circuit is a DC-DC circuit.

[0015] Preferably, a sound effect indicator light is also provided, which includes multiple LEDs, and the multiple LEDs are respectively connected to the audio processing chip.

[0016] Preferably, the number of LEDs is four.

[0017] This utility model has the following advantages and beneficial effects:

[0018] This utility model features a compact and reasonable hardware layout, achieving the goal of small size design. It is easy to integrate into wired headphone microphone devices, improving the portability and integration of the device, and getting rid of the high power consumption and large size problems caused by traditional complex audio algorithms.

[0019] This utility model is equipped with a sound effect switching button and switch, allowing users to freely select sound effect modes or turn reverb on / off. The audio processing chip can respond quickly, improving the flexibility of the device's operation.

[0020] This utility model also allows for adjustment of algorithm parameters or switching of preset modes via buttons, making operation simple and intuitive;

[0021] This invention, combined with real-time feedback from sound effect indicator lights, achieves efficient human-computer interaction and meets the diverse needs of different users. Attached Figure Description

[0022] Figure 1A schematic diagram of the structure of the simulated room reverberation device for wired headphone microphones provided by this utility model;

[0023] Figure 2 This is a flowchart of an example of a method for running a simulated room reverberation algorithm provided in Example 1. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0026] Example 1

[0027] This embodiment provides a simulated room reverberation device suitable for wired headphone microphones, such as... Figure 1 As shown, it includes an audio processing chip, headphone assembly, microphone, sound effect switch, sound effect switching button, power conversion circuit and connection components;

[0028] The headphone assembly, the microphone, the sound effect switch, and the sound effect switching button are respectively connected to the audio processing chip;

[0029] The audio processing chip is connected to the host via the connection component;

[0030] The input terminal of the power conversion circuit is connected to the input power supply through the connection component, and the output terminal of the power conversion circuit is connected to the power supply terminal of the audio processing chip.

[0031] In this embodiment, the headphone assembly includes a left earphone and a right earphone, which are respectively connected to the audio processing chip.

[0032] On the other hand, the connection component preferably uses a USB interface, and the audio processing chip is connected to the host through the USB interface.

[0033] Furthermore, the power supply of the host is connected to the input terminal of the power conversion circuit via the USB interface.

[0034] Specifically, the power conversion circuit is preferably a DC-DC circuit.

[0035] In addition, a sound effect indicator light is preferably provided, which includes multiple LEDs, and the multiple LEDs are respectively connected to the audio processing chip.

[0036] Based on this, the number of LED lights is 4.

[0037] The working principle of this embodiment is as follows:

[0038] After the device receives power from the host via the USB interface, the DC-DC circuit starts working, converting the input voltage into the operating voltage required by the various components in the device. The microphone is used to capture sound signals and then transmits the analog audio signals to the audio processing chip. The audio processing chip converts the received analog audio signals into digital signals for further processing. Specifically, the audio processing chip can run an analog room reverberation algorithm to process the digital audio signals. Users can select different sound effect modes or turn the reverberation effect on / off using sound effect switching buttons and a sound effect switch. The audio processing chip can adjust the parameters of the reverberation algorithm or switch to different preset sound effect modes according to user operation. Based on the current sound effect mode and switch status, the audio processing chip can control the on / off state or lights of the sound effect indicator lights (LED1, LED2, LED3, LED4) to provide feedback to the user on the current sound effect status. Then, before outputting the audio signal to the headphones, the digital audio signal, after reverberation processing and sound effect adjustment, is first transmitted back to the host via the USB interface. The host then performs further processing on the returned audio signal, such as mixing with other audio signals. After the host computer completes its processing, the digital audio signal is transmitted back to the audio processing chip via the USB interface. Finally, the audio processing chip converts the digital audio signal back into an analog signal and sends it to the left and right earbuds respectively for the user to listen to.

[0039] When running the simulated room reverberation algorithm inside the audio processing chip, refer to... Figure 2 You can refer to the following methods:

[0040] When processing mono audio:

[0041] Negative gain adjustment: First, the input mono audio signal is negatively gained to prevent clipping distortion and ensure that subsequent processing can be carried out normally and with high quality.

[0042] Channel duplication: The mono audio signal after negative gain adjustment is copied into left and right channel audio signals to prepare for subsequent different processing in the left and right channels.

[0043] Comb filter processing: The audio signals of the left and right channels each pass through a corresponding set of comb filters. The characteristics of the comb filters are used to create an echo effect, giving the audio a richer auditory experience.

[0044] Full-pass filter processing: The audio signals of the left and right channels then pass through their respective sets of full-pass filters, which enhance and diffuse the reverberation effect by changing the signal phase, further improving the spatial sense and atmosphere of the audio;

[0045] Dry and wet signal mixing: Based on the set dry and wet ratio, the dry signal (original audio signal) and the wet signal (signal after reverberation and other processing) are mixed to achieve the ideal reverberation effect.

[0046] When processing stereo audio:

[0047] Merging and Negative Gain Adjustment: First, merge the input stereo audio signal into a mono signal, and at the same time, perform negative gain adjustment to prevent clipping distortion and ensure that it can smoothly enter the subsequent processing stage.

[0048] Channel duplication: The mono audio signal processed above is copied into left and right channel audio signals, laying the foundation for further processing.

[0049] Comb filter processing: The audio signals of the left and right channels are respectively passed through a set of corresponding comb filters to create an echo effect and enrich the auditory performance of the audio.

[0050] Full-pass filter processing: The audio signals of the left and right channels are then passed through a set of corresponding full-pass filters to change the signal phase, enhance and diffuse the reverberation effect, and create a better spatial reverberation atmosphere;

[0051] Dry and wet signal mixing: Mix dry and wet signals according to the set dry and wet ratio to achieve the desired reverberation effect.

[0052] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An analog room reverberation device suitable for use with a wired earphone microphone, characterized by The audio processing chip, the earphone assembly, the microphone, the sound effect switch, the sound effect switching button, the power conversion circuit and the connecting assembly are included. The earphone assembly, the microphone, the sound effect switch and the sound effect switching button are connected to the audio processing chip respectively. The audio processing chip is connected to the host computer through the connecting assembly. The input end of the power conversion circuit is connected to the input power through the connecting assembly, and the output end of the power conversion circuit is connected to the power supply end of the audio processing chip.

2. An analog room reverb device for use with a wired earphone microphone as defined in claim 1, wherein: The earphone assembly includes left earphone and right earphone, and the left earphone and the right earphone are connected to the audio processing chip respectively.

3. A simulated room reverb device for a wired earphone microphone as defined in claim 1, wherein: The connecting assembly adopts USB interface, and the audio processing chip is connected to the host computer through the USB interface.

4. An analog room reverberation device for a headset microphone according to claim 3, characterized in that: The power supply of the host computer is connected to the input end of the power conversion circuit through the USB interface.

5. An analog room reverberation device for a headset microphone according to claim 4, characterized in that: The power conversion circuit adopts DC-DC circuit.

6. An analog room reverberation device for a headset microphone according to claim 1, wherein: An audio effect indicator lamp is further provided, which includes a plurality of LED lamps, and the plurality of LED lamps are connected to the audio processing chip respectively.

7. An analog room reverberation device for a headset microphone according to claim 6, characterized in that: The number of the LED lamps is four.

Images