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post #171 of 191 Old 09-25-08, 08:41 PM
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Re: REW Noob


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JohnM wrote: View Post
You should be wary of applying filters at the top end of the frequency range if you have not had your mic calibrated, the cal file we have for download may not be (likely will not be) an accurate match for your particular mic at the top end.
Thanks for clarifying that, John. I was having a hard time swallowing such a severe rise up that high!

Regards,
Wayne



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post #172 of 191 Old 09-25-08, 08:57 PM
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Re: REW Noob

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I verified my levels and plotted a full range graph from 15-20kHz (see graph #3). Now another major dip appeared at the 200Hz mark. Being frustrated at this point, I plugged another filter in the mains eq at 195Hz with a +6.0 gain and 8.5Q.
That’s a pretty narrow filter. Make sure it’s giving an audible improvement (both with the pink noise test and with program material) before you commit to it. Often ultra-narrow depressions aren’t terribly audible.

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Well the result looks a little better (see graph #4), but the subs still look like they are maybe too hot still.
I’d agree.

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It sounds good, but just not as much "kick". Maybe I just need to give it time to sink in as this is how it should sound.
Have you tried the regular (non-hard-knee) house curve yet? You might like it better. Also, I presume you’ve followed the directions in the house curve article on how to determine the amount of slope you need?

Regards,
Wayne



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post #173 of 191 Old 09-26-08, 08:08 AM Thread Starter
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Re: REW Noob

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Wayne A. Pflughaupt wrote: View Post
Thatís a pretty narrow filter. Make sure itís giving an audible improvement (both with the pink noise test and with program material) before you commit to it. Often ultra-narrow depressions arenít terribly audible.

Have you tried the regular (non-hard-knee) house curve yet? You might like it better. Also, I presume youíve followed the directions in the house curve article on how to determine the amount of slope you need?
Now that I have had time to cool off a bit. I went back and did the pink noise test for my 195Hz filter and could not hear a difference. So I will be removing that one. Any other/more suggestions for the 330Hz dip?

I also went back and set-up a regular house curve on a different memory setting. This way I can try both. In addition, I revisited the house curve technique. I played a 150Hz sine wave (pretty loud) and then played a 30Hz sine wave. I did see a 11-12dB difference on the RS meter to get them to sound at the same level. I also played a 80Hz sine wave compared to a 40Hz sine wave. Once again there was about a 6dB difference to get them to sound the same in volume.

What does that all mean.....looks like my lows might not be off that much. I think I have reached a point now where I just need to sit and listen to a bunch of different material and start judging with my ears.
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post #174 of 191 Old 09-27-08, 02:10 PM
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Re: REW Noob

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I think I have reached a point now where I just need to sit and listen to a bunch of different material and start judging with my ears.

Hello weverb, I have reach this point several times in the last five months and I agree with your advice.
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post #175 of 191 Old 09-27-08, 07:33 PM Thread Starter
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Re: REW Noob

What's the story/difference of this ECM8000 cal file (the first one) versus the one on the download page (the second one)? I found it in one of brucek's postings. There looks to be a very big difference in the upper Hz.
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post #176 of 191 Old 09-27-08, 07:59 PM
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Re: REW Noob

Use the newecm file on the download site. It is the one professionally calibrated and certified by West Caldwell Calibration Laboratories. The other is an old one we used before the professional calibration was carried out.

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post #177 of 191 Old 09-27-08, 08:20 PM Thread Starter
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Re: REW Noob

Thanks brucek. I am just wondering what could be causing my top end of the graphs to go up so much. Nothing sounds overly bright to me.
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post #178 of 191 Old 10-15-08, 08:00 AM Thread Starter
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Re: REW Noob

Well , I have started to work on my center channel now. I am using a YDP2006 to eq it and the mains. Here are some graphs for your review....

1. Center with no filters.
2. Center with filters.
3. Center compared to mains.
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post #179 of 191 Old 10-15-08, 08:51 AM
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Re: REW Noob


You've certainly got the right idea.

The graphs for both mains and center show an overall sag in response between about 2 kHz and 10 kHz. It would probably make a noticible improvement in SQ to shore that area up a bit with a broad filter.

Looking at your center baseline graph, it looks like the Target Curve should have been lowered to maybe 72-73 dB before you started equalizing. That way less severe filters could be used.

Regards,
Wayne



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post #180 of 191 Old 10-15-08, 09:02 AM Thread Starter
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Re: REW Noob

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Wayne A. Pflughaupt wrote: View Post

You've certainly got the right idea.

The graphs for both mains and center show an overall sag in response between about 2 kHz and 10 kHz. It would probably make a noticible improvement in SQ to shore that area up a bit with a broad filter.

Looking at your center baseline graph, it looks like the Target Curve should have been lowered to maybe 72-73 dB before you started equalizing. That way less severe filters could be used.

Regards,
Wayne
Thanks Wayne, none of the filters were more than +/-6.0dB. I try and take your guidelines to heart when eq'ing. There are only four filters being applied to the center. The first being a high pass filter (obviously), the second is a shelving filter to help with that 200-500Hz. area. The last two are a boost at about 3.0kHz. and a small cut of the very high end to get it to match the mains. I must say, so far the center has been easier than the subs.
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