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Author Topic: Earphone sound quality checking  (Read 418 times)

Offline DulindaN

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Earphone sound quality checking
« on: October 25, 2017, 05:34:14 pm »
Hi Guys,

As topic mention is there is a good and reliable method or a software to check sound quality on earphones?

Appreciate you help.
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Offline Chayan4400

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Re: Earphone sound quality checking
« Reply #1 on: October 25, 2017, 06:54:18 pm »
Plug 'em in to whatever you store your music on and give them a listen playing whatever you normally play. If you like them, they're good. If not, time to look for a new pair.
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Offline DulindaN

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Re: Earphone sound quality checking
« Reply #2 on: October 25, 2017, 11:31:03 pm »
Let me elaborate.

What I'm seeking is not just to select a good earphone by listening.

Listening and judging the quality will be differ from person to person. One quality level might good enough for a person but the same might not good enough for another person or might exceed their expectation. It is matter of personal preferences.

What I'm asking is that other than just glisten and judging, is there as way to or any technical method check the sound quality?

As an example, is there a way to check that the "bass should be this much on a good earphone" or "if the earphone is good enough this sound should produce". 

Thanks.
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Re: Earphone sound quality checking
« Reply #3 on: October 26, 2017, 07:22:08 am »
You could draw up a frequency response diagram like the one below. It'll give you a good idea of the sound profile of the cans.

As for saying quantitatively how much amplitude at a specified frequency is "good"; simply put, how can you? Who would specify the ranges for what is good and what is not? All you can conclude is the characteristics of cans, nothing more.
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Re: Earphone sound quality checking
« Reply #4 on: October 27, 2017, 01:03:41 am »
As topic mention is there is a good and reliable method or a software to check sound quality on earphones?
That is impossible.

This is what basically happens when you use any form of speakers,
Your device will generate a digital audio signal ---> using that digital signal, speakers generate analog audio signal (pressure waves in air)


You can check that digital signal with software. Things like Bass levels (low frequency waves), treble (high frequency) etc.

But what the speakers actually generate from these digital signals, cannot be checked by any software. You'll have to use your ear. You can use audio sensors if you really want, but even if you did, it will still be based on personal preference.

What you can do is check reviews for the specific earphone you have in mind. They'll tell you a great deal about sound reproduction quality.
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Offline DulindaN

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Re: Earphone sound quality checking
« Reply #5 on: November 02, 2017, 10:39:25 pm »

You can check that digital signal with software. Things like Bass levels (low frequency waves), treble (high frequency) etc.

But what the speakers actually generate from these digital signals, cannot be checked by any software. You'll have to use your ear. You can use audio sensors if you really want, but even if you did, it will still be based on personal preference.

What you can do is check reviews for the specific earphone you have in mind. They'll tell you a great deal about sound reproduction quality.

Agreed with you point.

Basically my main requirement is to get a rating for the sound quality.

Forget about the personal preferences. If we take 5 different earphones in different price ranges, the sound that produce will also be different with each other. In a situation like that, is there is a device which can test the sound quality in each earphone and give rating base on the frequency range that they were producing. 

With such device I can quantify sound quality.
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Re: Earphone sound quality checking
« Reply #6 on: November 02, 2017, 10:55:39 pm »
Agreed with you point.

Basically my main requirement is to get a rating for the sound quality.

Forget about the personal preferences. If we take 5 different earphones in different price ranges, the sound that produce will also be different with each other. In a situation like that, is there is a device which can test the sound quality in each earphone and give rating base on the frequency range that they were producing. 

With such device I can quantify sound quality.
You can't quantify a subjective quality. Therefore, such a device is impossible.

Imagine you have a dozen types of cakes and you want to see which tastes the best. How would you go about it? You get it analysed by a device or do you simply taste every one? And if 10 people did the same, do you think all 10 would agree on the exact same?

Just like you can't get a rating for taste, you can't get a rating for sound quality.
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Offline DulindaN

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Re: Earphone sound quality checking
« Reply #7 on: November 03, 2017, 12:48:16 am »
You can't quantify a subjective quality. Therefore, such a device is impossible.

Imagine you have a dozen types of cakes and you want to see which tastes the best. How would you go about it? You get it analysed by a device or do you simply taste every one? And if 10 people did the same, do you think all 10 would agree on the exact same?

Just like you can't get a rating for taste, you can't get a rating for sound quality.

Okay.

What I have learn so far is that I cannot quantify the "sound quality" because it is highly subjective.

But any earphone or a headphone produce a certain range of frequency. Like low(bass), mid and high(treble). What can be different from product to product is the combination of these ranges in higher or lower levels.

By only listening to the sound level, we cannot specifically tell that the earphone is producing this range of frequencies. We can tell only whether its good or bad according to personal preference.

As per your "cake" example, 10 people taste in 10 different ways and their personal rating will be also different. 100% agreed. But what if I say if I measure the amount sugar content in each cake some how (consider it is the only factor for the taste and don't ask me how i'm gonna check the sugar content :D)
and obviously we might get different values of sugar content. And that information is not qualitative. It is quantitative.

Same as I want to capture that actual frequency range which I think also can quantify.

What do you think? Appreciate your help. (Y)



       
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