Recently launched a wireless lavalier microphone module solution. Support one-to-one/one-to-two functions, 20 meters transmission distance, the low noise floor of the module, with intelligent noise reduction algorithm and dynamic gain algorithm, the near wheat is clear, and the far wheat is also clear~ https://bjbjaudio.com/

Lavalier microphones, also known as lapel microphones, clip microphones, collar microphones, and neck microphones. Performers wearing lavalier mics can move freely without disturbing the pickup of vocals, rather than having to stay positive and not far from the front of the device like directional set-top mics. Therefore, lavalier microphones are widely used in Vlogs, TV shows, interviews, public speaking, and even film production. https://bjbjaudio.com/

While the market demand is increasing sharply, the product performance of the wireless lavalier microphone needs to be improved. First of all, in terms of signal stability, high-end products are guaranteed by a variety of chips, but the cost increases and low-end and mid-end products experience stuttering and unstable vocals in long-distance and real scenes. Secondly, from the perspective of the noise reduction effect, whether it is a mid-to-high-end or entry-level model, the noise reduction effect is not obvious during the actual measurement, and it is difficult to meet the balance between noise reduction and vocal fidelity in different scenarios. https://bjbjaudio.com/

Support high-fidelity, strong noise reduction, and weak noise reduction in three modes to switch freely.

The module transmitter and receiver are connected through Bluetooth, and the receiver and recording terminal can be connected by a UAC/3.5mm wired interface, which improves the compatibility of hardware use; supports 48K sampling rate audio; automatically aligns the noise reduction of the two microphones when using one for two Mode; 3 modes of high fidelity, strong noise reduction, and weak noise reduction can be switched at will. https://bjbjaudio.com/

1. The transmitter module receives single-channel raw audio data (48K) from the microphone without signal processing;

2. The transmitter module sends the audio through the AISPEECH noise reduction algorithm to the receiver module, where the transmitter module can realize dynamic mode switching (high fidelity, strong noise reduction, weak noise reduction);

3. The receiving module receives the data processed by the algorithm. Devices such as SLRs or mobile phones can record the noise-reduced audio through the UAC/3.5mm hole; the receiving module can also directly output (monitor) the noise-reduced audio through line out. ;

4. The receiving module can do other audio processing appropriately, such as reverberation, howling suppression, etc. https://bjbjaudio.com/

Intelligent noise reduction, sound field restoration

 
The technology enables intelligent noise reduction and restores a high-fidelity sound field. Complete end-to-end testing guarantees subjective hearing and stability. The noise reduction algorithm empowerment of the wireless lavalier microphone module solution is mainly reflected in the following five aspects:

1. Traditional + AI smart noise reduction:

The noise reduction mode is adaptively matched according to the characteristics, complexity, and energy of the ambient noise to achieve an excellent balance between noise reduction and vocal fidelity.

2. Highly robust noise reduction performance:

The performance is based on the nuances of the hardware structure & the difference in the wearing angle of different wearers, etc., and automatically matches the best noise reduction performance to ensure stable performance and good user experience.

3. Presence:

Automatically match the best gain, allowing users to "immerse" the atmosphere of detail.

4. High third-party software compatibility:

Used with different mobile phones and software, the noise reduction performance has been stable and strong.

5. Small resource usage:

The use of chip hardware acceleration instructions greatly reduces the amount of software calculation and consumes less power. https://bjbjaudio.com/

In addition, the module solution also has four advantages: high integration, perfect acoustic guidance and cooperation, personalized functions and high maturity:

1. The solution supports the direct loading of voice algorithms, no need for external DSP, high integration and cost reduction (including hardware cost, algorithm transplant workload, etc.);

2. Perfect acoustic guidance, suggestions and cooperation, can provide mature and complete wireless microphone cavity ID design, including pre-acoustic cavity simulation review to prototype acoustic performance test, to help customers achieve optimal performance with the least labor & time cost ;

3. Personalized functions are two-way transmission, reverberation and howling suppression;

4. Finally, the solution has achieved dynamic switching of voice modes (high fidelity/strong noise reduction/no noise reduction) and hardware display demo, with a high degree of maturity. https://bjbjaudio.com/