Although programmable by a computer, basic hearing instruments typically have limited adjustments available for fine-tuning to fit unusual listening patterns. They are also less customization and automated than hearing aids with advanced technology.
Whenever hearing basic digital hearing aids requires making some manual adjustments to their positions such as turning the volume control up or down, or pushing a button on the aids to reduce noise coming from behind.
The following are examples of features that are commonly included in basic hearing aid technology.
Directional microphone systems
The directional microphone system is designed to increase the sounds coming from the front of the wearer and to reduce the sounds coming from other directions. Different system designs more or less block the sounds coming from behind the wearer. These systems improve speech comprehension in background noise. Satisfaction for hearing is greater with directional microphone systems with hearing devices without them.
Digital noise reduction
The digital noise reduction system analyzes the signal to determine if it is unwanted noise. If this unwanted noise is detected, this system reduces the noise level. This feature makes background or environmental noise less annoying and enhances your hearing. Digital noise reduction has been shown to be effective and preferred by hearing aid wearers.
Impulse noise reduction
Likewise for the purpose of digital noise reduction, noise reduction makes hearing easier. The system detects any momentary loud noises, such as tingling car keys, typing on keyboards or cooking utensils, and instantly softening them.
Wind noise reduction
Although quite specific in its application, reducing wind noise can make a world of difference for those who enjoy outdoor hobbies such as golf and sailors. Hearing aid detects the effect of air flowing in microphones to reduce wind noise and reduce or minimize the changes that occur.
Feedback management systems
The response management system encounters the inevitable response (whistling) in a hearing aid. These feedback loops create an annoying whistling sound that can get in the way of your comfort. Feedback management algorithms can be implemented separately for basic hearing aids or advanced hearing aids. Basic feedback management systems can reduce overall amplification to remove CT. Advanced feedback management systems reduce or eliminate CT without affecting the overall amplification of the hearing aid.
Telecoil is a wireless facility that picks up electromagnetic signals from compatible telephone or looped rooms. This technique has been available in hearing aids for a very long time. Because the signal of interest is directed to the hearing aid’s processor without using a microphone, telecalls can improve the signal-to-noise ratio, eliminating the ability for feedback. Public performance, tours, performances and worship services are usually made accessible to individuals with hearing loss through telescopes.
Frequency modulation (FM) compatibility is a wireless feature that enables hearing aids to connect to the FM system, sometimes called a boot through a special attachment to the hearing aid. FM systems can be used alone or with hearing aids. Like the telcoil, the FM system improves the signal to noise ratio without creating a feedback loop in the hearing aid. FM compatibility is especially important when selecting hearing aids for children because these systems are commonly used in educational settings to ensure that the teacher’s voice is heard above the clamor of the classroom.
Data logging is a feature that stores data about the listening environment in which you wear your preferences for your hearing aids and programs, volume levels, and other features.The information can be accessed by the hearing healthcare professional when you return for a follow-up appointment. Your physician can use this valuable information to further optimize your hearing aid fitting.
What are the real-world benefits of these features?
Imagine sitting in a very busy restaurant, having dinner with friends. There are voices coming from all directions, like chopping dishes, talking and people laughing and waiting at other tables. To wear your new hearing aids and listen to the friend who is sitting at the table near you.He said while telling a joke. Your hearing aids are simultaneously reducing impulse noise such as climbing silver utensils on a plate (reducing impulse), reducing the whistle (digital noise reduction) of the ventilation system above, the sound of people at the tables behind you Pressing (directional microphone system) and storing information about the listening environment for later fine-tuning (data logging). Trying to do all of this automatically while amplifying and shaping the speech signal from your friend.