How to Set Up a USB Noise Cancelling Microphone

PublishTime： 2022-02-09 Article Source：POROSVOC

With the rapid development of science and technology, the camera function of smartphones has become stronger and stronger, and mobile phones have gradually replaced professional camera equipment. In addition, if a high-pixel camera is applied to a mobile phone, the mobile phone can have functions such as shooting and video that are comparable to cameras. Therefore, in interviews, shootings, on-site recordings, and other scenes and scenes that require professional shooting, especially in the case of the increasing popularity of mobile offices and media, high-quality shooting tasks can be performed by operating mobile phones. Then, let’s learn how to Set up Microphone noise reduction!In this paper let POROSVOC tell you how to Set up microphone noise reduction!

However, mobile phones meet the shooting requirements of professional shooting scenes to some extent. For example, although professional devices such as external high-definition cameras are used to improve the shooting quality of mobile phones, due to the limitation of the trend of thinning mobile phones, these external professional devices cannot be directly installed on mobile phones. Therefore, a mobile phone case with external functions can easily install various external devices on the mobile phone, thereby greatly improving the functions of the mobile phone and fully satisfying various professional shooting tasks.

Now, there are many mobile phone cases with external functions on the market. Usually, a mobile phone case has a mobile phone fitting portion for stably fitting a mobile phone on one side, and an external fitting connector for a specific external device such as a camera and a flash on the other side. In particular, the mobile phone case is also provided with a holding part, and the user can hold the mobile phone case side by side horizontally to shoot in a relatively simple and easy-to-operate manner, which greatly improves the user's shooting experience.

Because in the process of shooting short videos and interview videos, it is not only necessary to shoot high-definition video information, but also need to obtain high-quality sound signals, so the mobile phone generally only has a built-in microphone, and the mobile phone and one-handed shell are tightly assembled, Therefore, the mobile phone, therefore, is provided with a microphone adaptive part in the mobile phone case for an adaptive external microphone, so as to obtain a higher-quality sound signal through the microphone in a scene that needs to be picked up.

At present, the microphones on the market are divided into omnidirectional microphones, unidirectional microphones, and bidirectional microphones according to their directivity. For example, omnidirectional microphones have the same sensitivity to sounds from different angles and can record the sound of the entire environment, but are susceptible to noise from the surrounding environment and are suitable for moving sound sources.

Unidirectional microphones (such as cardioid and superharmonic) are only suitable for sound coming from the front of the microphone, while sound from other directions is attenuated, so they are suitable for use in personal interviews. However, in the process of filming and recording, especially during the interview, the interviewee and the interviewee will have frequent conversations.

Therefore, an external omnidirectional microphone is usually installed to collect the voices of both the interviewee and the interviewee. However, the sound quality recorded by this omnidirectional microphone is not high and contains a lot of ambient noise. On the other hand, when using a unidirectional microphone, only the voice of either the interviewee or the interviewee can be recorded. Therefore, in order to obtain a high-quality sound signal, two unidirectional microphones must be provided.

However, due to the small size of the phone case itself, it is difficult to install two microphones on the phone case at the same time, so it cannot meet the needs of recording high-quality audio in both front and rear directions.

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