Audyssey Curve (copy) 16khz

Hi, I've just copied the curve into manual EQ (for a look) and noticed that the curve is setting 16khz to +6? -- I find this strange as all these speakers are brand new from the store, all 8 of them are identicale and all are considered "bright" --- my room is also considered bright (reflective surfaces, wood, leather, bare Walls etc... --- why has/would Audyssey set that particular frequency so high? Is that normal?
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7 Comments

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    Chris Kyriakakis

    Hi Paddy, no that's not normal.  Combined with the symptoms you described for DSX in your other message I am beginning to suspect that there is something wrong with your mic.  Static electricity or humidity can damage the mic and diminish its high frequency response significantly.  That would cause the filters to boost more than necessary in the high frequency range.  Can you send us the mic to check it?  Please email me at chris@audyssey.com to arrange for a replacement to be sent to you.

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    Paddy

    Thanks Chris,

    Email sent :)

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    John Dauphinee

    Hi Chris,

    I am having the same problem as Paddy. 16K boosted +6 on all speakers. However my speakers are not brand new but are all the same type. I too have a bright sounding room with lots of wood, plaster and leather furniture. I am a live audio engineer and I am use to measuring rooms for frequency response. I have measured the room around 8 times. So I find these reading to be unusual.

    I been looking forward to using your system for some time. 

    I am using a brand new Marantz AV7701. Coming from a 7 year old B&K Reference 50 that had simple bass and treble controls. The speaker configuration is the same.

    Thank you for your time,

    John

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    Chris Kyriakakis

    Hi John,

    It's not unusual for some speakers to have a steep roll off in the 15-20 kHz region.  It really depends on the tweeters and how the measurements are taken (hopefully not too far from the main axis of the speakers). 

    I would normally suspect a mic problem (static or humidity can damage the capsule), but in that case the high frequency problems would start much lower.

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    John Dauphinee

    Chris,

    Thanks For the quick response.

    According to what I have read my speaker placement isn't ideal. My room doesn't offer much flexibility for speaker placement 

    The main L, R & Center are all mounted up high on my front wall angled down. I am not able to toe in the L & R because of the mounting. With a hard wall on one side, window blinds on one side and a plaster ceiling on top. Thee surrounds are at ear level on stands and I'm able to focus them properly.

    Thanks again,

    John

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    Chris Kyriakakis

    Hi John,

    That is the most likely cause of the high frequency boost.  The tweeters have a roll off as you go off axis and that is causing MultEQ to apply a boost.

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    John Dauphinee

    Thanks Chris,

    That makes sense.

    Even though I'm stuck with my speaker placement. I've got things tweaked in pretty well. 

    Thanks,

    John

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