Can not load both Left tweeter SPL and the house curve after clicking on EQ

[muctau191]

Hello
I created Tweeter house curve for both Left and right Tweeter speakers.
Now I want to EQ the left tweeter. What I do:
- Select Left tweeter speaker from left-side bar
- From All SPL screen, I check on Left Tweeter SPL and the Tweeter house curve
- Finally click on EQ button.
However, after that, it shows up the Left tweeter SPL only, without the Tweeter house curve, I can not do further process.
From this video

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, socket do just the same as me, but his thing works.
I have been with this issue for the whole day, and still can not figure out.
Would you help?

 

[muctau191]

Another question is I have 31 EQ bands with my Rainbow dsp, but Rew provides us with only 20 bands. And it seems there is no way to add more. Do you have a comment on this?

 

[John Mulcahy]

This is where you load the house curve:

 

[muctau191]

This is where you load the house curve:

View attachment 85262

I created the SPL before, how do I export it into .txt file? From sockets video, He just selected both SPL (speaker and house curve), and click on EQ button.

 

[muctau191]

Actually, I did select the tweeter house curve from left side bar > File > export to get .txt file. But the point is adding the .txt file into House curve, and then which button to click on?

 

[John Mulcahy]

Match response to target in the Filter Tasks pane will generate filter settings, but they won't be any use for a graphic equaliser. Easiest way to set up a graphic EQ is to play pink periodic noise through the driver and look at the result on the RTA in 1/3 octave mode. If you select your target in the main window it will appear on the RTA as the first trace to act as a reference. You may need to shift its level using the SPL offset control in the main window. You can then manually adjust the graphic to get the response onto the target.

 

[muctau191]

Match response to target in the Filter Tasks pane will generate filter settings, but they won't be any use for a graphic equaliser. Easiest way to set up a graphic EQ is to play pink periodic noise through the driver and look at the result on the RTA in 1/3 octave mode. If you select your target in the main window it will appear on the RTA as the first trace to act as a reference. You may need to shift its level using the SPL offset control in the main window. You can then manually adjust the graphic to get the response onto the target.

Please take a look on 8: 37 of the following tutorial:

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Socket firstly play sweep to get all speaker's SPL, and then I created house curve for tweeter, mid, woofer, and sub. And he just select specific speaker SPL and the house curve, then click on EQ. Things really work.

 

[John Mulcahy]

The target match is for parametric equalisers. You implied that you have a 31-band graphic EQ. If those are 31 parametric filters then you can use them.

 

[muctau191]

The target match is for parametric equalisers. You implied that you have a 31-band graphic EQ. If those are 31 parametric filters then you can use them.

It does not matter how many EQ bands I have in my DSP, I can use just 20, 18,15 or just 14. The matter is I played sweep just like socket, I created house curve via REW just like him to have both SPL lines. I wonder why I can't not select both from All SPL line windows, and then click on EQ just like socket.

 

[John Mulcahy]

Because you are misunderstanding what he has done. The target shapes on the All SPL graph are there as a convenience when viewing the responses. Whether they are selected or not has no effect at all on the EQ window. The EQ window acts on the current individual measurement selection. He even says in the video at about 8:40 that he has previously set up the target to the desired shape and shows the target settings panel for that target.