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Frequency responce question

spwath
By spwath
in Audio
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I have a question after reading some things in a thread.

 

Is it possible for 2 headphones that have the same fr graph to sound different? Are there other factors?

n0ah1897, on 05 Mar 2014 - 2:08 PM, said:  "Computers are like girls. It's whats in the inside that matters.  I don't know about you, but I like my girls like I like my cases. Just as beautiful on the inside as the outside."

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https://linustechtips.com/topic/583815-frequency-responce-question/
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Do you mean a graph of the sound coming from the headphones or a graph of the source sound?

Ideally no, but after you factor in emi and ohms, speaker size and variation, shape of the headphones(over ear or in ear), the different types of speaker set-ups in different headphones, and the crap quality vs Bose; it is not only possible but very likely the headphones will sound different even if slightly. 

If you meant the graphs of the sound coming from the headphones were the same, there are some factors such as recording error, shape/padding, and the layout of the speakers that could change how we hear them. frenquency is only part of sound and most graphs wont cover every step. 

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An important thing to keep in mind when looking at frequency response graphs is how they were made.  How many points (frequencies) did the company sample volume at to make it?  10?  30?  more, less?  How much have they smoothed the curve once they got those numbers?  Those factors can make a huge difference in the appearance of the curve, and can cover up some pretty significant shortcomings if they do it "right" (ie, evil-ly) :P 

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3 hours ago, RedWulf said:

Do you mean a graph of the sound coming from the headphones or a graph of the source sound?

Ideally no, but after you factor in emi and ohms, speaker size and variation, shape of the headphones(over ear or in ear), the different types of speaker set-ups in different headphones, and the crap quality vs Bose; it is not only possible but very likely the headphones will sound different even if slightly. 

If you meant the graphs of the sound coming from the headphones were the same, there are some factors such as recording error, shape/padding, and the layout of the speakers that could change how we hear them. frenquency is only part of sound and most graphs wont cover every step.

 

Well lets say that these two lines on the graph are the same. They are not, but lets say they are

same.png

Would it be possible for two headphones to have these same FR graphs but sound differently?
Or wouldent they have to sound the same?

 

3 hours ago, Ryan_Vickers said:

An important thing to keep in mind when looking at frequency response graphs is how they were made.  How many points (frequencies) did the company sample volume at to make it?  10?  30?  more, less?  How much have they smoothed the curve once they got those numbers?  Those factors can make a huge difference in the appearance of the curve, and can cover up some pretty significant shortcomings if they do it "right" (ie, evil-ly) :P 

True, like the difference in the graphs for this headphone from the companys page and headphone.com. ew...

plattan.pnggraphCompare.php?graphType=0&graphID[]=2

n0ah1897, on 05 Mar 2014 - 2:08 PM, said:  "Computers are like girls. It's whats in the inside that matters.  I don't know about you, but I like my girls like I like my cases. Just as beautiful on the inside as the outside."

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