Digital hearing aids are hearing instruments designed for amplifying sounds. Unlike analog or traditional hearing aids, they produce digital sounds. However, contrary to popular belief, they cannot re-establish normal hearing; they only help people hear and communicate better.
Like most hearing instruments, digital hearing aids are placed behind the ear. They consist of a microphone for detecting sound, an amplifier for increasing sound volume, a speaker for delivering loud sounds into the ear, and batteries for powering them. They also have volume control and multi-channel settings for enhancing sound quality and noise reduction features.
They are more flexible than the adjustable models.
They can be completely automatic, although they can allow the user to control the volume or the listening program according to his preferences.
They are usually capable of reducing or totally eliminating feedback or whistling sound.
They can be built with sensors that detect sounds exceeding a particular loudness level, allowing them to automatically adjust to reduce loudness of the sound.
The more advanced models have multiple microphones and multi-band compressions that enhance digital sound quality in noisy environments.
Advanced signal processing: Choose a digital hearing aid with an advanced signal processing that automatically adjusts the amplification amount according to the volume of the sound that reaches the microphone. With this feature, you can hear softer sounds better as they are amplified more than the louder sounds.
Multi-memory capability: Look for a digital hearing aid with a multi-memory that allows you to store several frequency responses and programs to suit your hearing ability and match your needs. Noise reduction: Choose a digital hearing aid with a noise reduction feature for increased sound quality.
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