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Voice coil bone conduction headsets contain three parts. These are the voice coil, magnetic drive, and an external magnetic shield. The shield prevents the system's magnetic field from affecting the parts nearby. There are several such headphones, each with strengths and weaknesses. Here are some examples with their pros and cons.
These are the most common headsets today and contain a coil, magnet, and a diaphragm. The music signal passes through the coil and generates a magnetic field. This, in turn, moves the diaphragm and produces sound. They are easier to use and cheap. Hence, ideal for those who are just starting with bone conduction headsets. The sound quality is good enough for average use. However, they are not suitable for high audio quality.
A balanced armature headset uses a rod system. The armature is composed of a thin metallic wire that generates a magnetic field. The auditor then vibrates a diaphragm to produce sound. This type is often used in hearing aids. They are small and efficient, providing clear sound even at low volumes. They also offer great audio quality. However, they are more expensive and harder to find than dynamic headsets.
These headsets use an electrostatic field instead of magnets to produce sound. They have a much thinner diaphragm than other headsets. The sound quality is potentially even better than the balanced armature models. Unfortunately, electrostatic headsets require a special amplifier to work. This makes them more expensive and less accessible than other models.
The bone conduction headset is a special device. It can simultaneously hear sound and send sound to another device. They work by picking up vibrations through bones and transmitting them as sound waves. The sound can be sent out via an integrated speaker. This helps the user listen to it while talking. This means one can communicate effectively even in noisy environments or with hearing impairment.
These headsets send voice through bone conduction. This means they deliver sound vibrations directly through the bones of the skull. These sound waves bypass the outer and middle ear and travel to the inner ear. The inner ear then picks up these sound waves and processes them. This makes it easier for people with hearing problems to communicate within noisy surroundings.
Hearing aid bone conduction headsets are designed to ensure optimal performance. Their structure often features an open-ear design that allows sound to travel through both air and bone. The electroacoustic transducer is within the headset and converts electrical signals into vibrations. These vibrations are then transmitted to the bones of the skull. The headset is built from lightweight, durable materials. This includes premium metals and plastics. The ergonomic shape ensures a comfortable fit.
A1. One of the improvements is the inclusion of wireless technology in bone conduction. More and more devices of all types are becoming wireless. So, naturally, bone conduction headsets wanted to keep up with the trend. Hence, they have started adopting wireless capabilities. It allows for easy pairing with smartphones.
A2. Yes! There are many setups for audiophiles where bone conduction transducers are used with traditional speakers. This is called dual audition systems. Such systems provide a fuller range of sound. It would allow people with hearing impairments to enjoy the advantages of bone conduction while still experiencing speaker-based audio. This is how normal hearing individuals listen to sound.
A3. Yes! The headset enables differently-abled individuals to hear sound directly through the bones. This means that those individuals with damage to their eardrums but normal inner ears will be able to hear everything clearly. Hearing aids can further amplify the sound for those individuals with hearing loss in the inner ear, thus providing a clearer signal.
A4. Individuals participating in biking, running, and other outdoor are the normal customers of a bone conduction headset. Users can remain aware of their surroundings while enjoying music or taking calls. This is why they have become so popular among athletes and outdoor adventurers.
A5. While bone conduction headsets effectively communicate by directly transmitting vibrations through the bones, background noise might interfere with this clarity. However, many models are equipped with noise-canceling microphones. It helps mitigate background sounds and enhances users' voices during conversations, making them clearer even in challenging conditions.