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| REW Forum Sound Card CalibrationDiscuss Sound Card Calibration in the Equalization | Calibration forum; Sound Card Calibration I want to use REW for Sub tuning. I have a Toshiba Tablet with a Realtek audio card built in. ... |
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Views: 2041 - Replies: 99
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| Sound Card Calibration I want to use REW for Sub tuning. I have a Toshiba Tablet with a Realtek audio card built in. I downloaded the latest version (4.0) of REW. I ran the calibration, and the test afteward, and I get the attached graphs. The raw test shows the freq response rolling off pretty high, and the compensated test still shows a curve that looks unusable for sub testing. Am I doing something wrong, or do I have a soundcard? | ||||
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| Re: Sound Card Calibration Quote:
You're right, the soundcard ain't great, but the soundcard calibration file (dotted line) compensates and gives a flat response ready for testing. Many people use an external USB soundcard when they have a laptop for REW. Once you take a measurement, be sure to post measurement graphs for subs using a vertical scale of 45dB to 105dB and a horizontal scale of 15Hz to 200hz. ![]() brucek | |||||
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| | #4 | ||||
| Re: Sound Card Calibration bruchek, I am still trying to calibrate my Sound Blaster Live 24 I hooked up the line from my mike in to the speaker out and ran a sound card calibration and this is what I got any ideas. Thanks, Leon | ||||
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| | #5 | ||||
| Re: Sound Card Calibration I'm sure brucek will have a definitive answer, but I believe the problem might be related to software that "enhances" the sound. Look in your system tray (bottom right) and see if there is any icons related to the sound card other than the volume control, if so turn it/them off, or exit it/them, and try again. Paul | ||||
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| | #6 | |||||
| Re: Sound Card Calibration Quote:
Hi Leon, You want to use "line in" rather than "mic in" on your soundcard. -- Otto | |||||
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| | #8 | ||||
| Re: Sound Card Calibration otto, When I use the line in I don't have enough power to attain a reading. | ||||
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| | #9 | |||||
| Re: Sound Card Calibration Quote:
Thanks, Leon | |||||
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| | #10 | ||||
| Re: Sound Card Calibration Hi there koiman, Well, you generally want to use line in for the way we have things set up here. If you are using speaker out to line in, you should definitely be able to get a reading. Check your sound card settings via the speaker icon in the task tray. Are all levels up (both the speaker output as well as the line in knob)? Nothing muted (probably not, else I'd expect you to get nothing). Similarly, in REW's "Settings", you can control the levels for the soundcard on the appropriately-named "Soundcard" tab. Make sure you have selected the correct inputs and outputs for the soundcard being used, and then ensure that the levels are at max (you can adjust them down later, if need be). After all that, redo the soundcard cal and see what happens. You should definitely be able to get correct levels using speaker out and line in with a loopback cable. What's the rest of your setup like? Specifically, during normal measurements, how will you feed the input of your soundcard? Radio Shack SPL meter? Other SPL meter? Mic and preamp? Mic only? Thanks! Good luck! -- Otto | ||||
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| | #11 | ||||
| Re: Sound Card Calibration Otto, I checked all setting that you told me to check.. Sound card input set to 1.000 surround mixer master control set to 100% and when running the line in to speaker out I get a maxium reading on input of -64.3 way to low to run the sound card cal. Thanks, Leon | ||||
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| Re: Sound Card Calibration brucek, I am using the stereo to mono plugs like you told me to... I don't know how to post a picture of the Surround Mixer but here is my readings. Master Control .. Volume 100% Wave.. 100% MIDI.. Cancel CD Audio.. Cancel Line in/ Mike.. Cancel What U Hear.. 100% (Record) This set up is just like the one in the tertorial. Thanks, Leon | ||||
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| | #14 | |||||
| Re: Sound Card Calibration Quote:
In my case, I need line in... -- Otto | |||||
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| | #15 | ||||
| Re: Sound Card Calibration In the source box there is a line in / Mike setting.. the speaker at the bottom of the line has a X in it just like the the original picture in the set up section of the instructions for the Sound Blaster Live 24 Thanks, Leon | ||||
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| | #16 | ||||
| Re: Sound Card Calibration OK. Gotcha. I found that thread about SB 24 setup. Did you see this post? I see that you listed "What U Hear", but they're saying to find the Line In in that box. I don't have that soundcard, so I'm not sure how it works, but that might be part of it. -- Otto | ||||
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| | #18 | ||||
| Re: Sound Card Calibration Yep. Now can you select that little "ear" icon by the "REC" and drop it down to select "Line In"? -- Otto | ||||
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| | #19 | ||||
| Re: Sound Card Calibration Otto, Ok.. I finely got it to work instead of having the Input Device on the Sound Card set to line in/Mic in, I changed it to What U Hear and it ran a perfect line. Thanks for all the help I have been fighting this for a week now. Thanks, Leon ![]() | ||||
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| | #20 | ||||
| Re: Sound Card Calibration Hmmm, that's interesting. So where is that "Input Device" setting actually located? You said it's on the Sound Card, but I'm not sure what you mean -- on the hardware device itself? You changed it from "line in/mic in" toWhat U Hear? Is that telling us that there are two places that must match for this thing to work? And the previous post I liked to just happened to have it the other way around? What if you set them both to "line in/mic in"? Or am I missing something? -- Otto | ||||
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| | #21 | |||||
| Re: Sound Card Calibration Quote:
Return the settings to mic/line in as shown in the sticky thread... Re-read that entire thread and set it up the way it describes and it will work.. brucek | |||||
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| | #22 | ||||
| Re: Sound Card Calibration The easiest way to capture a single Windows panel is to hold down the "Alt" and press "Print Screen", open Paint, or your prefered graphics program, and paste (ctrl-v) the image. This should display only the "Active" panel. You can then save the image as a jpg, and post it. Paul | ||||
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| | #23 | ||||
| Re: Sound Card Calibration brucek, I have read all the information that you wanted me to changes the surround card setting to Line in and still cant get it to work. I can't believe that calibrating the sound card is so difficult. Here is some pictures of my set up, Thanks, Leon ![]() ![]() | ||||
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| | #25 | |||||
| Re: Sound Card Calibration Quote:
It sure seems like you have everything correct. I really don't know what else to say. It should just work. I guess you are using the two jacks shown below? ![]() brucek | |||||
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