As a brand-new high-tech product, the recording shielder has gradually entered people's field of vision. It can prevent illegal recording and protect the privacy and safety of your conversations in many occasions! The principle is: the recording shield sends out a The interference signal makes the pickup (microphone) of the sound acquisition device fail, so that it can only pick up the interference signal, but not the normal voice signal, thus achieving the purpose of voice shielding. After the jammer is turned on, the files recorded by the recording equipment are played with a "humming" sound and the content of the conversation at that time cannot be heard. This product is widely used in confidential meetings, high-end business talks, military meetings and other places to prevent illegal recording. There are many types and forms of recording shielding products on the market. How to choose a good recording shielding product has become a problem that needs to be solved.
So, what constitutes a useful and practical anti recording blocker product? According to the author's many years of investigation, a qualified product should follow the following points:
1. La primera cuestión a considerar es si el último modelo de equipo de grabación puede protegerse. Por ejemplo, los últimos modelos de iphone, iphoneX/XR/XS/max, etc. Como todos sabemos, los equipos de grabación actuales han sido diseñados con reducción y filtrado de ruido tanto en software como en hardware, lo que requiere que el escudo de grabación se integre técnicamente. estos últimos equipos de grabación. También puede estar bien protegido para ser considerado un producto calificado, lo que debe tenerse en cuenta al elegir un producto.
2. Whether the audio recording jammer will cause discomfort to the human body after it is turned on is a very important issue. The recording shielding device realizes shielding by emitting shielding signals. The frequency and algorithm used by different manufacturers of the shielding signal are very different. The frequency and algorithm determine people's feelings and shielding effect. According to the author's investigation, after many products start working There will be sharp or harsh sounds, which will make people feel uncomfortable. Such products should be avoided as much as possible.
3. ¿Se puede proteger desde todos los ángulos? Muchos bloqueadores en el mercado tienen una desventaja obvia, es decir, el efecto de protección solo se puede lograr cuando el bloqueador de grabación está frente a la captación del dispositivo de grabación (como un teléfono móvil, grabadora de voz, etc.), una vez que la captación y el bloqueador de grabación forma un ángulo. Y aumente gradualmente, el efecto de protección se debilitará gradualmente. Cuando alcanza los 180 grados, la mayoría de los escudos de grabación no tienen efecto de protección. Este es un problema relativamente detallado y relativamente profesional. Es difícil para aquellos que no tienen experiencia entenderlo. Usamos el siguiente diagrama para ilustrar:
As long as you keep the above three points in mind, and then choose a Audio jammer /noise generator that suits your usage habits according to your own situation, especially the characteristics of easy portability and flexible placement, for example, it can be placed in the car, on the desk, or Conference table, etc., you can refer to AL ASAR TECH's recording jammer products. Their products have the inspection report of the Ministry of Public Security and are regular manufacturers. You can pay attention to it, I believe that some people who have the need for conversation confidentiality should really choose a convenient, easy-to-use and practical recording shield to protect your conversation privacy.
