Soundcard calibration - Does this look right? Link fixed

[spl_nut]

http://webcity.net/rew.htm



Thank you


Jason

[brucek]

Page not found...............

Simply go to out post padding page and make five dummy posts and then come back and show your graph. You'll get a lot more play that way.

brucek

[spl_nut]

Any ideas?

Honestly I've tried every option & level setting possible, always with the same results. I can find no option (save SPDIF) for loopback recording.



Jason

[brucek]

I can find no option (save SPDIF) for loopback recording.

You have the line-in enabled in playback. That's a no-no. It's called monitor mode and causes feedback.
Mute the line-in and all other Playback Mixer options except Master and Wave.
The line-in is only enabled in the Record Mixer - not the Playback Mixer (which you show in your jpg).
To select the Record Mixer - select Options - Properties - Recording

brucek

[spl_nut]

brucek wrote:

You have the line-in enabled in playback. That's a no-no. It's called monitor mode and causes feedback.
Mute the line-in and all other Playback Mixer options except Master and Wave.
The line-in is only enabled in the Record Mixer - not the Playback Mixer (which you show in your jpg).
To select the Record Mixer - select Options - Properties - Recording

brucek

Thanks for the help, and the patience, brucek.

I muted line-in playback.
Selected line-in in the recording mixer.

http://webcity.net/rew.htm

Same results

I'm beginning to feal one of those "uninstall the software and forget about it because you're not smart enough to use it" moments coming on...

[brucek]

I muted line-in playback.

But your Playback Mixer jpg should look like this below then with all these muted with checkmarks, and the Wave and master enabled as shown?



brucek

[spl_nut]

Yes, muted as shown (new images at link).


Jason

[brucek]

Yes, muted as shown (new images at link)

Below is what I see? It's incorrect.



brucek

[spl_nut]

See below.

[spl_nut]

[brucek]

OK, that looks good.

Let's now discuss why both left and right line-in channel VU meters show a signal, when you should only have a single loopback cable on the right hand channel?

brucek

[spl_nut]

brucek wrote:

OK, that looks good.

Let's now discuss why both left and right line-in channel VU meters show a signal, when you should only have a single loopback cable on the right hand channel?

brucek

My sound card has only 3.5mm inputs and outputs - I am using a stereo 3.5mm cable, from line-out to line-in.

I assumed (incorrectly?) that REW would be generating a signal on the right channel only.


Jason

[brucek]

My sound card has only 3.5mm inputs and outputs

You require 2 stereo splitter adapters so as to 'break-out' the left and right channels. I've seen the incorrect use of both channels in the soundcard cal cause feedback (as you have).

Hook a single cable from the right line-out to right line-in.

The adapters are also required (once you have the soundcard cal complete) when you plug the SPL meter into the calibrated right channel, and also to use the right channel line-out to your receiver.

This adapter or better this adapter, from this thread.

brucek

[spl_nut]

I think I'm actually seeing the light here... 3.5mm Line-out to L & R splitter, R to R of L & R splitter to 3.5mm line-in.

[spl_nut]

Wow, guess we were typing at the same time

Got it brucek, thanks for all your help!


Jason

[brucek]

Yep, leave the left channel open for all your REW use. It isn't used (since you have selected right). That will be the calibrated channel.

brucek