Many people have been quick to embrace a wireless microphone for filming, especially those outside the realm of major films, such as budding content creators, videographers, video streamers, and journalists. The primary reason for this shift is clear: wired options can be distracting when positioned in front of a person’s face. If you need to mic up a subject closely but don’t want bulky audio gear in the frame or cables getting in the way, these wireless models are the ideal solution. In today’s blog, we’ll explain how they work, why they’re essential, and how to choose the best one for your filmmaking.
How does a wireless microphone for filming work?
Wireless microphone systems for filming consist of three key components: the microphone, the transmitter, and the receiver. The microphone captures the audio, while the transmitter sends the signal wirelessly to the receiver, which is connected to recording devices, such as cameras and smartphones. Together, these units work seamlessly to deliver high-quality, cable-free audio during filming. Let’s take a closer look at each component.
Microphone: Capture a sound for filming with lavalier, handle, or headset type
The wireless microphone for filming typically comes in three types: lavalier, handheld, and headset.
Lavalier: Also known as “lav” or “lapel” mics, this type is small and discreet, designed to clip onto the subject’s clothing. Positioned close to the mouth, they provide a good signal-to-noise ratio and avoid many of the audio issues associated with shotgun or on-camera options. These are most commonly used in filming production, where visible audio gear isn’t ideal, or when the subject needs to keep their hands free.
Lavalier mics connect to a transmitter pack, typically worn on the subject’s belt. While they offer excellent sound quality, they can take time to set up and must be positioned carefully for optimal results. These audio devices can be delicate, making them less suited for fast-paced shooting situations. A good example of the best wireless lavalier microphone for filmmaking is our SYNCO G2 Max.
Handheld: Handheld options are the traditional stage mics, often dynamic or condenser types, with the transmitter integrated into the body. They are quick to set up and ideal for on-the-go use, commonly used by performers, reporters, and educators.
Headset: Headset style, worn over the ear, has a small arm that positions the mic close to the mouth. These are perfect for noisy environments or when the subject is moving around, keeping the mic at a consistent distance from the mouth while allowing complete hands-free use. Headsets often use the same belt pack transmitters as lavalier mics.
Transmitter: Convert the sound into a digital signal and wirelessly send it to the receiver
The transmitter’s role is to convert the audio signal from the mic into a digital signal that can be sent wirelessly to the receiver. In digital wireless systems, the transmitter converts the analog signal into a series of 1s and 0s, which are then transmitted over a radio frequency. Modern manufacturers like SYNCO now integrate the transmitter and microphone into a single unit, offering a more compact and convenient solution without compromising audio quality.
Receiver: Receive the digital signal and deliver clear audio to your filming device
The receiver is the counterpart to the transmitter, receiving the digital signal and converting it back into an audio signal. Receivers can be single or multi-channel and come in various sizes, from larger desktop units to smaller, portable units like the SYNCO G2 Max and G3 Pro, which can be mounted on cameras or worn on a belt. More convenient and compact options like SYNCO P1S can even directly be plugged into the phone’s charging port. You can check out this article to explore more wireless microphones for video recording at SYNCO.
What are its benefits?
Wireless microphones for filming offer several benefits over traditional wired options:
- They are wire-free, eliminating trip hazards and the mess of tangled cables.
- They allow for much greater freedom of movement during recordings or performances.
- Many wireless systems offer long-range capabilities, allowing for larger distances between the transmitter and receiver.
- They provide a discreet solution, ensuring a clean and professional look whether shooting video or performing on stage.
- They are more durable, as cables tend to wear out over time, but radio waves are not subject to physical damage.
- Wireless filming audio gears can also be hands-free, offering more flexibility.
While there are some downsides to consider, such as latency, interference, and signal issues in certain environments (e.g., “dead spots”), in many cases, wireless audio devices are the optimal or only choice for filming.
What to look for when choosing the best wireless microphone for filming?
The wireless microphone you select will largely depend on your specific filming needs. There are numerous options available, each tailored to a specific application. Some are versatile, while others are designed for particular purposes, such as portable filmmaking or large-scale stage performances. Here are a few factors to consider when making a purchase:
Type of the wireless microphone for filming: Consider the type of mic you need based on your filming scenario. Would you prefer a wireless lavalier, handheld, or headset option? Each type is suited to different needs, so the right choice will often be clear based on your requirements.
Range: Think about how far you will typically be from your subject. Wireless systems vary in their transmission range, from short distances to several hundred feet. A good rule of thumb is to estimate the usual distance from your subject and then double it for safety. Range is often linked to the price of the system, so avoid overspending on a system with more range than you need (though having extra range can be beneficial).
Size: These wireless audio gears come in various sizes, from the mini wireless microphone for filming like the SYNCO G2 Max to larger desktop units. If you frequently conduct remote interviews or shoot on the move, a smaller system may be more suitable. For stationary setups, like in a classroom or venue, a larger system with bigger controls and a display may be easier to handle.
Battery life: Battery life is a crucial factor when choosing a wireless filming audio device, but keep in mind that size, range, and battery life often go hand in hand. If portability is essential, you may need to sacrifice some battery life. Alternatively, if range is more important, you may need to opt for a larger unit. Consider your top priorities when making a selection.
Latency: Even the best digital wireless microphone pack for film can’t avoid some latency. This occurs due to the time required to convert an analog audio signal into digital data during transmission. You’ll want to check the maximum latency in the specifications. For instance, SYNCO G2 Max features a maximum latency of 20ms, which is virtually undetectable.