How to Test Your Hearing

Argue about the sound quality - it's great fun. Let's test your own hearing and you will find out what frequencies must be addressed. Or, maybe it's time to chase not for the sound quality, and run to the doctor?

IN prodolzhenie Audio themes should also talk about human hearing more detail. How subjective our perception? Can I test your hearing? Today you will learn the easiest way to find out whether your hearing completely corresponds to the tabulated values.

It is known that an average person can perceive acoustic wave hearing organs in the range from 16 to 20 000 Hz (depending on the source - 16000 Hz). This range is called the audible range.

These figures are approximate. The fact is that in the process of growing up, and subsequently aging organs of hearing are changing. The result of these processes is not only a reduction in the audible range. Sometimes a person can not perceive not only the border frequency, but also the individual frequencies are inside the standard perceptual range. In addition, frequencies below 100 Hz can be perceived not hearing, and touch or sound resulting from refraction in the ear canal. These events can lead to the perception of sounds that are not audible to the human range.

In social networks and websites, distribute various musical content, can meet special test files. They were originally designed for fine-tuning of multi-channel speakers. They reproduce frequencies to find conflicting and subsequent cutting by means of hardware or software included in the speaker system (crossovers and EQ). Such sound files contain a sound recording at one frequency or a sequence of such records created by an audio frequency generator.

Individual test collections also contain additional information about the initial wave amplitude, which allows you to align the volume of multi-channel acoustic elements in the room. Typically, these files are edited in a special way: further changing the modulation signal is added to the noise amplitude varies. In our case it will be enough the simplest selections.

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This test is sufficient for a rough estimate, but if you can not hear sounds above 15 kHz, you should consult a doctor.

Please note that the problem of low-frequency hearing, most likely associated with audio.

Most often, the inscription on the box in the style of "The playable range: 1-25 000 Hz" - it is not even marketing, and outright lies from the manufacturer.

Unfortunately, companies are required to certify, not all audio, so to prove that it is a lie, it is practically impossible. Speakers or headphones can be, and reproduce the boundary frequency... The question is how and at what volume.

Problems range above 15 kHz - quite a common age-related phenomenon that users are likely to encounter. But 20 kHz (the ones for which the fighting so audiophiles) usually hear only children up to 8-10 years.

Consistently enough to listen to all the files. For a more detailed study of the samples can be played, starting from a minimum volume, gradually increasing it. This will provide a correct result in the case, if the rumor is a little spoiled (recall that for perception some frequencies is necessary to exceed a certain threshold, which is as it opens and helps hearing aid to hear it).

And you hear the entire frequency range that is capable of save MP3?