How to choose the best hearing aids for your ears?

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    saleena john


    Due to the good response to the post of What would be the best screen resolution for the human eye ?, this time we gave …




    Due to the good response to the post of What would be the best screen resolution for the human eye ?, this time we took on the task of investigating what would be the best hearing aids for our ears. But unlike the view in the ear more elements intervene making it a little more complex, so we will list the main characteristics that you should take into account when purchasing hearing aids.


    First of all we must look at the characteristics of the equipment, any pair of hearing aids that are proud of being so must include in their packaging information on the specifications of the equipment. Example:


    Response frequency

    The Response Frequency is described as a range that is measured in Hertz (Hz). The human ear can usually perceive ranges from 20 to 20 000 Hz, outside of those ranges the difference in practice is almost negligible for the general population, although there are low frequencies that although not heard can be felt.


    This is a parameter that we can not worry about a bit since in terms of what strictly refers to the sound to the Chinese hearing aids that we sell on the sidewalk have this frequency, but it should be mentioned that the wider the frequency range the better your response will be to reproduce high or low frequencies to such an extent that we can experience some physical sensation.


    Currently high-end hearing aids can be found with ranges of 2 to 30,000 Hz. But the problem of transmitting these frequencies is that most gaming headphones use the same transducer (the part that vibrates to produce the sound) for both bass and high, which results in a poorer sound. This is mainly due to the reduced size of the headset, but the higher quality ones try to solve this by increasing the size of the transducer or by adding several transducers for the tweeter, woofer and subwoofer.



    This refers to the power output, that is, how loud it is heard. This is measured in decibels (dB). For our hearing it is recommended as a maximum of 100 dB, since higher could make us lose progressively the ear. Although if you are already half deaf it may suit you above 100 dB.


    To give you an idea, a normal conversation goes from 60 to 70 dB. The sound of a restaurant full of people is 85 dB. The barking of a dog 100 dB. A chainsaw, 110 dB. The sound of an airplane taking off 140 dB which could leave you deaf for a while. As a rule, starting at 125 dB, pain starts to be felt, so you have to bear in mind that the damage to your ears is irreversible. If you want to know more about the damage to your ears and how to prevent it, we recommend the post. Did you know why your ears die slowly?



    The impedance is the resistance to the passage of an electric current. This is measured in Ohms (Ω). And when it comes to audio, the lower the impedance, the greater the volume of the same, but it should be clarified that with a higher volume does not necessarily increase the quality of the sound. For example, hearing aids that have a level greater than 300Ω will be heard very low on an iPod or mobile device, since they require more power and this type of gadget can not be granted. For optimum performance in these devices, the correct impedance should be less than 100Ω, the lower the better.

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