CHANGSTAR: Audiophile Headphone Reviews and Early 90s Style BBS

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Author Topic: Sennheiser Orpheus HE90 Frequency Response and CSD Waterfall Plot Measurements  (Read 17789 times)

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Tyll Hertsens

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Re: Sennheiser Orpheus HE90 Frequency Response and CSD Waterfall Plot Measurements
« Reply #40 on: August 24, 2012, 03:01:03 PM »
I do still measure headphones for HeadRoom.

I decided long before moving over to InnerFidelity that the 50 and 500Hz square waves were too short, and the DF HRTF wasn't as correct as the ID HRTF.  But since all the data in the HeadRoom database was taken at these settings you really can't just change horses mid-stream. You'd have to remeasure all the cans.

So when I started measuring for InnerFidelity I made the changes.
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Cheers,

Tyll (like on the floor only spelled different)

arnaud

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Re: Sennheiser Orpheus HE90 Frequency Response and CSD Waterfall Plot Measurements
« Reply #41 on: August 25, 2012, 12:49:17 AM »
BTW Tyll,

The only picture I saw of your dummy head had funny shaped ears (like realistic molds) yet you reference a standard dummy head for which the pics I have seen show a simplified ear geometry. Which is it really in your rig?

I am asking that because I have been playing with simulation of ear shape / impedance effects on headphone measurements and it's rather significant above a few kHz. As such, beyond using a DF or FF or ID equalization, what matters the most is that this target curve corresponds to your actual measuring apparatus.
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purk

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Re: Sennheiser Orpheus HE90 Frequency Response and CSD Waterfall Plot Measurements
« Reply #42 on: October 02, 2012, 06:50:58 PM »
Just found this site....amazing work purrin.
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jeffreyfranz

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Re: Sennheiser Orpheus HE90 Frequency Response and CSD Waterfall Plot Measurements
« Reply #43 on: February 28, 2013, 02:51:09 PM »
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wink

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Re: Sennheiser Orpheus HE90 Frequency Response and CSD Waterfall Plot Measurements
« Reply #44 on: February 28, 2013, 03:28:25 PM »
"everybody can say they'd heard the Orpheus ;) :
"

I just did, and it sounded just like my HD600 through an Asus Xonar STX card.
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shipsupt

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Re: Sennheiser Orpheus HE90 Frequency Response and CSD Waterfall Plot Measurements
« Reply #45 on: February 28, 2013, 03:47:48 PM »
We just got confirmation that Sennheiser will bring a working unit to the London Head-Fi meet... so I'll get to hear one again.  I'm looking forward to it. 
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Yeah, well, you know, that's just, like, your opinion, man.

jeffreyfranz

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Re: Sennheiser Orpheus HE90 Frequency Response and CSD Waterfall Plot Measurements
« Reply #46 on: March 02, 2013, 05:42:34 AM »
Quote from: ihasmario on August 16, 2012, 01:00:19 PM
Just chipping in; you will find that the direction from which a sound is coming is of less significance the longer the wavelength (for speed v, the lower the frequency). In other words; the low and even midbass should be about flat for any reasonable equalisation curve, possibly with the exception of paying upwards to your crotch from between your knees--What is meant by this?. Similarly, this means that treble is much more affected by where the sound is coming from, because of the shorter wavelength.

Quote from: maverickronin on July 03, 2012, 08:42:24 PM
Actually the HE90 is much closer to DF.  Here's an old Headroom graph of the HE90 and they normalize to DF.
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