. Background of the appearance of lavalier microphone
As we all know, the closer the microphone is to the sound source, the less loss of recorded sound. The camera-top microphone is actually a directional microphone installed on the camera. When shooting with the wide-angle lens , you should be as close to the person as possible. When shooting with the medium and telephoto end, you can only use the microphone stand as far as possible. Record from a position that is close to the person without being intrusive. However, in some shooting situations, there is no such Bumei space, such as theater performances, and the people to be photographed are far and sometimes close to the camera. In this kind of shooting environment, traditional directional microphones cannot complete the recording work well. A small and compact wearable microphone with a fixed distance from the character's mouth is needed, that is, a lavalier microphone. The microphone head of the
lavalier microphone is relatively small, and it is not noticeable when pinned on the collar (as shown in the picture below). In vlog short video shooting and news interviews, it is often seen that this type of lavalier microphone is placed on the collar of the subject. During the filming of movies (including short films), lavalier microphones, also known as boomai, are usually hidden. The location of the hidden lavalier microphone is usually behind the tie, behind the bow tie, inside the T-shirt, under the collar of the shirt, on the chest of men, and at the heart of women's underwear.
Lavalier microphones are usually omnidirectional. When installed at the neckline, small left and right rotations of the head will not have much impact on the sound pickup effect. Since the lavalier microphone is very close to the character's mouth, the actual recording content is mainly clear human voices, and only a small amount of surrounding ambient sound can be recorded. This feature is very suitable for outdoor recording. Even when recording sound in a noisy environment, the recorded voice of the subject will be clearer and the background sound will be smaller. Lavalier microphones are also suitable for recording in rooms that have not been acoustically optimized. The echo in such rooms is relatively large, and the effect of using directional microphones will be very bad. In this case, using lavalier microphones can achieve better results (and directivity). microphone in comparison). Of course, the best solution is to use sound-absorbing treatments in the room.
2. Classification of lavalier microphones
Lavalier microphones are divided into two types: wired and wireless. The wired lavalier microphone can be directly connected to the camera for recording, or it can record audio on the recorder and mobile phone, post-production and camera The video in the track is aligned (as shown in the picture below).
rod smartLav+ is a lavalier microphone that can be used directly on , apple, devices and some Android devices. This microphone can record broadcast-quality sound and is widely used in TV program recording and movie shooting. When connecting RODE smartLav+ to an Apple iOS device, the "RODE Reporter" App specially developed by RODE for Apple iOS devices is very simple to use. It can record audio files in 48kHz24bitWAV format, as well as 320kbps, 256kbps, and 128kbps. Bitrate audio files in AAC or MP3 format.
The connector of Rhodes smartLav+ lavalier microphone is TRRS specification, and the camera and recorder can be connected through an SC3TRRS to TRS conversion cable. Two Rohde smartLav+ lavalier microphones can be connected to Apple iOs devices at the same time through one SC6-L plug. The
wireless lavalier microphone can get rid of the constraints of cables. The subject can be photographed in motion. The trajectory of the person's movement and the way the camera moves the lens will not affect the recording effect. Wireless lavalier microphones suitable for shooting Vlog short videos include Rode WirelessGO and RODELink Filmmaker Kit microphones.
Rode WirelessGO may be the world's smallest wireless microphone set (as shown in the picture below). The transmitter and receiver each weigh 31 grams. They are connected through 2.4G wireless transmission technology. The Rode WirelessGO transmitter has a built-in omnidirectional The microphone can be used by clipping it to your collar, or you can connect other microphones through the TRS jack on the transmitter. For example, use a Lavalier GO lavalier microphone or connect a Rohde smartLav+ lavalier microphone through an SC3 TRRS to TRS conversion cable.The receiving end of Rhodes Wireless GO can adjust the recording level, and you can also view the transmitter's real-time signal strength, recording level and other information through the OLED display. Barrier-free 70m transmission distance and 7 hours of working time are enough for Vlog short video shooters to meet most vocal recording needs. Rode Wireless GO wireless microphone set is specially prepared for Vlog short video shooters. It can be easily matched whether using a camera, mobile phone or action camera.
RODELink Filmmaker Kit is a professional wireless lavalier microphone set (as shown in the picture below). The transmitter and receiver can be customized to set the pairing channel and provide barrier-free 100m transmission. The kit contains a lavalier microphone and a TRS audio cable with security screw. RODELink Filmmaker Kit can adjust the recording level gain to +10dB or +20dB through the transmitter, and can also adjust the recording day level gain to -10dB or -20dB through the receiver. Both the receiver and transmitter have an LED window, which makes it easy to read the current channel, battery power, volume level and other information. RODELink Filmmaker Kit is very suitable for use in film and television productions, TV shows and personal Vlog short video shooting (as shown in the picture below).
