Newbie - Hi and please help with REW measurements

[HT_GUY999]

Hi All

I am newbie on the forum, so firstly Hello to all.

I have the following setup in my Cinema/Stereo room (7.2.4 setup):

• Marantz SR8015 AVR
• Klipsch RP8000F MKII as L/R Channels
• Klipsch RP404C as the Centre
• 4 x Klipsch RP240D for Surrounds and Surround Back Speaker
• 2 x Definitive D12 Subwoofers connected via SVS Soundpath due to cable lengths
• 4 x Klipsch CDT 180 in ceiling speakers
• Michi X5 which powers the Front Speakers L/R in HT Bypass mode. *Klipsch RP8000F MKII* when I do stereo listening I move them out and use KEF R3 Meta's. So essentially this is a dual purpose room. No REW measurements have been take for stereo listening with the KEF and Michi X5 yet
• Room Size 4x5m
• Wooden floor with a centred Carpet.
• The walls have acoustic foam pads from Amazon.

I am using REW with a UMIK1, i have calibrated the SPL levels to 75/76db, measure the distance from the speaker with a laser measure and inputted those values into the Marantz.

I have taken measurements for the 7 channels thus far (not the subwoofers)

I need help analyzing the REW measurements I have taken thus far, and any recommendations criticism are welcome, end of the day I am trying to get the most out of the room. I am also considering putting a wall to wall carpet and removing the wooden floors and eventually maybe doing some acoustic panels and removing the foam pads from the walls

Here are measurements I have taken (screenshots)

Below are for Front Left and Right speakers 1/6 smoothing

Waterfall for Front Left speaker

Spectrogram for Front Left Speaker

Waterfall for Front Right speaker

Spectrogram for Front Right Speaker

Centre Speaker SPL Reading 1/6 smoothing

The Surround speaker and Rear Surround speakers 1/6 smoothing

And just 1 x spectrogram for the Surround Right speaker (don't want to over complicate this post)

Lastly some room pics to give you guys an idea of the what room actually looks like.

Thanks for reading and looking forward to replies, happy to share mdat files if needed.

 

[AnalogSteph]

While I would take in-room measurements >500 Hz with a giant pinch of salt unless window size is reduced dramatically (try <1 ms for the higher ranges if need be and reduce measurement distance), it would appear your setup is a tad bright up top.

Also, your vertical axis range is huuuge. Try something a little more sensible like 50 dB. I wouldn't apply 1/6 oct smoothing right away either, but maybe 1/12 to 1/21 oct.

For the sub-500 Hz range, try the moving microphone method or at least average a few measurements. I'll generally be averaging 3-4 measurements or so per speaker in general.

 

[HT_GUY999]

While I would take in-room measurements >500 Hz with a giant pinch of salt unless window size is reduced dramatically (try <1 ms for the higher ranges if need be and reduce measurement distance), it would appear your setup is a tad bright up top.

Also, your vertical axis range is huuuge. Try something a little more sensible like 50 dB. I wouldn't apply 1/6 oct smoothing right away either, but maybe 1/12 to 1/21 oct.

For the sub-500 Hz range, try the moving microphone method or at least average a few measurements. I'll generally be averaging 3-4 measurements or so per speaker in general.

Thanks you kindly for the above, I do see a dramatic improvement when the mic is move closer to the speakers about 1.5 metre away