A perfect wireless microphone brings great convenience to users and also provides a creative space for sound engineers during live performances. Therefore, when setting up a sound system, wireless microphones are often included, whether in small or large-scale applications. There are various types of wireless microphones available, such as handheld, headset, lavalier, and bodypack systems. Though they may vary in design, they are generally easy to understand.
The history of wireless microphones is relatively short, with most developments occurring over the past two decades. In the 1980s, they were rare and mostly found in international concerts. Brands like Newman and Sennheiser were among the few that produced them. Over time, more brands such as Shure, Sony, and EV entered the market, especially in high-end audio systems.
With the advancement of electronic technology, wireless microphones have seen significant improvements in both performance and affordability. This has led to a wide variety of products on the market, including many from domestic manufacturers. In places like Enping, Guangdong, there are even distribution centers dedicated to wireless microphone production.
Compared to wired microphones, wireless models are more expensive and technically complex. However, their flexibility and mobility make them a popular choice. This article will guide you on how to choose and use wireless microphones effectively.
Wireless microphones have evolved through several technological stages. The first was simple FM transmission and reception, which had poor sound quality and stability. The second stage introduced quartz oscillation, improving frequency stability but limiting adjustability. The third and current stage uses PLL (Phase-Locked Loop) technology, allowing for channel switching and better interference resistance.
Another important feature in high-end models is diversity reception. This technology uses multiple receivers to select the strongest signal, reducing dead zones and improving reliability.
When choosing a wireless microphone, consider your budget and usage environment. For general use in conference rooms or small venues, quartz-based or single-receiver models may suffice. For larger performances or professional settings, PLL and diversity systems are recommended.
Proper handling is crucial for optimal performance. Avoid holding the microphone too close to your face, keep it away from speakers, and prevent interference by not placing multiple units together. For lavalier mics, ensure they are close to the mouth, and avoid direct airflow.
In summary, understanding the technology and using wireless microphones correctly can greatly enhance your audio experience. Whether for casual or professional use, selecting the right equipment and handling it properly ensures the best results.
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