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Simplified REW Setup and Use (USB Mic & HDMI Connection) Including Measurement Techniques and How... - Page 5

post #121 of 9620
Quote:
Originally Posted by mogorf View Post

Why do you download a previous version when the latest one is on the same page? www.asio4all.com
No need to answer, just do it!! tongue.gif

Really don't know eek.gif, thanks feri.

Gear mentioned in this thread:

post #122 of 9620
Which of these SPL meters would work best to calibrate UMM-6 USB Mic?

$26.04 Scosche SPL1000F 60 to 130db SPL Decible Meter Reader work as SPL meter
$24.19 Mini Digital Sound Level Meter
$24.44 USB Digital Sound Level Meter
$22.86 HDE USB Digital Sound Level Meter
$15.87 Digital Sound Noise Level Meter Tester Decibel 40-130db
Edited by Stealth3si - 1/8/13 at 1:13pm
post #123 of 9620
Quote:
Originally Posted by JChin View Post

Really don't know eek.gif, thanks feri.

Not at all, what are friends for, eh? smile.gif
post #124 of 9620
Quote:
Originally Posted by mogorf View Post

Quote:
Originally Posted by kbarnes701 View Post

Feri, can you elaborate for me please?  Where do I set the test signal volume? WIth the discussion in Post 2 about using 100dB for the test signals (I think my house might fall down with 100dB from my two Submersives - LOL) I am cautious about the test tone volume. Any help you can give would be appreciated.

Keith, I really wouldn't like to go ahead of Jason, I'm sure he will include this part in his descriptions when time comes.

 

 

Understood.

 

Quote:
Nonetheless, here are some of my own thoughts:

1. Test level/volume can be set either in REW or on the MV of the AVR/AVP depending on the type of measurements one would like to conduct.

2. Volume/level for testing our rooms to find out anomalies prior to running room eq should not be critical, although REW will check and advise on too low (near the noise floor) or too high (near to clipping) volumes prior to measuring.

 

 

OK. Thanks.

 

Quote:
3. This will become interesting when we engage MultEQ and especially DEQ, because these twins will need calibrated SPLs vs. test signal levels. Remember the good old equation where -30 dBfs is supposed to render a 75 dB SPL at the MLP. Now if you feed 0 dBfs into the system the SPL at the MLP should be exactly 105 dB for satellites and with the +10 dB boost of the LFE the Submersives should deliver in your room a total of 115 dB SPL (flat). What did you say about rattling in your room? Yikes! With a 115 dB SPL at 10 Hz you will have one final rattle in your room before it falls down. Household insurance policy OK? Make sure REW tests are included in All Risks clause! tongue.gif

 

Hahaha - LOL (literally).

post #125 of 9620
I was finally able to download and install the correct beta version and load the mic file. But, with an HDMI cable plugged into my 80.2 and that input selected, When I select the ASIO control panel I was not able to find how to select either two channel or preferrably 8 channel audio output.

Here is what I get

post #126 of 9620
Quote:
Originally Posted by audioguy View Post

I was finally able to download and install the correct beta version and load the mic file. But, with an HDMI cable plugged into my 80.2 and that input selected, When I select the ASIO control panel I was not able to find how to select either two channel or preferrably 8 channel audio output.
Here is what I get

Did you try clicking on Advanced Options (the wrench symbol on the ASIO Control Panel), and then try checking the other options to see if they were active, and had 8 channels (I.e. High Definition Audio Device)?

Edit: if you've verified you have two or more channels active in the driver, see Feri's note below.
post #127 of 9620
Quote:
Originally Posted by audioguy View Post

I was finally able to download and install the correct beta version and load the mic file. But, with an HDMI cable plugged into my 80.2 and that input selected, When I select the ASIO control panel I was not able to find how to select either two channel or preferrably 8 channel audio output.
Here is what I get

Hi audioguy, channel selection is not done in the ASIO Control Panel, but in REW Preference, Soundcard tab. Please open up Output dropdown menu where now you should see all 8 selectable channels.
post #128 of 9620

I would like to add some comments about the purpose and direction of this thread.  These comments are prompted by Jason's answers to my list of questions.  While the answers are interesting, I am concerned that the information is too much, too soon.  There are many topics ahead of us, and we should discipline ourselves to focus on one important topic before we move on to the next.  Remember when you were taking those college courses?  On the first day of class, you received a syllabus which provided the list of topics to be covered, and the order in which they would be presented.  (I know, it's been over 45 years since I saw a college classroom, but I still remember...)

 

I think we should agree on an outline for the thread, focus on each item in order, and master it before proceeding.  An example of an outline:

 

- Assembling the hardware and software components comprising the REW kit, and mastering the techniques of configuring the components so REW is completely functional.

 

- Calibrating the mic and soundcard in preparation for taking accurate measurements.

 

- Generating and interpreting frequency response measurements.

 

- Generating and interpreting waterfall graphs.

 

- Generating and interpreting ETC graphs.

 

- Case studies:  Picking forum participants' measurements, identifying issues, and discussing approaches on resolving the issues as a team.

 

What I am trying to say is that if we try and discuss all these topics at the same time, we are going to get bogged down, and some of us may become discouraged and leave.  REW is an elephant, and we need to be the pygmies, eating it one bite at a time....  wink.gif

post #129 of 9620
Quote:
Originally Posted by AustinJerry View Post

I think we should agree on an outline for the thread, focus on each item in order, and master it before proceeding.  An example of an outline:

- Assembling the hardware and software components comprising the REW kit, and mastering the techniques of configuring the components so REW is completely functional.
...
What I am trying to say is that if we try and discuss all these topics at the same time, we are going to get bogged down, and some of us may become discouraged and leave.  REW is an elephant, and we need to be the pygmies, eating it one bite at a time....  wink.gif

Hi Jerry, totally agree with you on this. I was just going to post that I have the same 2 channel output as you until I did more clicking smile.gif. I now have all 8 channel and that log sweep for #4 output show a few things that need tighting down biggrin.gif.
post #130 of 9620
Quote:
Originally Posted by JChin View Post


Hi Jerry, totally agree with you on this. I was just going to post that I have the same 2 channel output as you until I did more clicking smile.gif. I now have all 8 channel and that log sweep for #4 output show a few things that need tighting down biggrin.gif.

 

Come on, don't tease me.  What do you mean by "until I did more clicking"?  Please provide the details of how you resolved the issue.

post #131 of 9620

I hate to say it but, for the time being, I am admitting defeat.  I can only output to two channels, front left and right.  And by virtue of bass management, the subs are receiving a signal as well.

 

This should not be a huge issue.  After all, I made a point to Feri that I wasn't very interested in testing the response to the surrounds and effect speakers anyway.  So, with the REW as currently configured, I will be able to test:

 

- Left speaker only (by setting it to Large to disable bass management, or simply powering the subs off)

- Right speaker only (same as above)

- Left + right speakers (leaving the bass powered off)

- Left + right + subs (by powering on the subs and using bass management)

- Subs only (by powering off the XPA-3)

- Center only (by driving left+right in PLII Cinema mode, subs powered off)

 

Being able to run these tests makes my setup fully functional, IMO, and will allow me to participate as a full citizen in any upcoming measurement exercises.  Now waiting on the UMM-6 mic......

post #132 of 9620
Quote:
Originally Posted by audioguy View Post


What if anything do I now need to do to generate a test signal? Do I need to change anything in the Windows sound area??

 

From the output drop-down menu, select "HD Audio Output 1".  This will configure REW to output to one channel only.  If you want to test the second channel as well, open the Timing Reference Output drop-down and select the other channel, i.e. "HD Audio Output 2".  Close the Preferences screen.

 

On the main REW screen, open the Generator tool located at the top of the screen.  Select a signal type, e.g. Sine Wave, Pink Noise, Linear Sweep, etc.  Make sure the RMS level at the bottom left is a reasonable value, try -20dB so as not to wake the neighbors.  The Play button should be enabled (colored green).  Click Play.  You should hear sound from your AVR.

 

Report back forthwith.

post #133 of 9620
And the mystery continues. The first screen dump shows the options that REW gives me (it appears to be 2 channels). I then went to the windows control panel to set the output to use the HDMI (versus the internal speakes) and got this surprise where I can select any of the speakers shown on the diagram and have it make a sound. But how do I tell REW which speaker to select since it only gives me two choices???



post #134 of 9620
Quote:
Originally Posted by AustinJerry View Post

Come on, don't tease me.  What do you mean by "until I did more clicking"?  Please provide the details of how you resolved the issue.

Sorry I had to, the devil made me do it tongue.gif


My Denon didn't show up in the Sound Settings either but it did show my laptop HDMI Ouput as AMD. So your RealTek HDMI Output should work.


- with laptop, tv and receiver turned off (and I then unplug the receiver power cord as well)

- connect your HDMI cable from laptop to receiver

- turned on tv and receiver (after I plugged the power cord back up)

- waited until both tv and receiver was completly on then turned on my laptop

- with nothing open

- click Control Panel and the Sound

- click RealTek HDMI Output and set it as default (make sure no green check mark is on the Speakers And Headphones)

- highlight and right click RealTek HDMI Output and click Configure Speakers (it should show options of Stereo, Quadraphonic, 5.1 Surround and 7.1 Surround - I try clicking 7.1 but it won't allow maybe because my setup is 5.1)

- click Test (should hear audio from each speaker)

- click Next (should show Optional Speakers)

- click Next (should show Full Range Speakers)

- click Next, Finish and the Ok

- close Control Panel

- restart laptop and wait until it boot back up

- open REW v5.0

- click Preference

- set Drivers as ASIO

- set ASIO Device as ASIO4ALL v2

- click ASIO Control Panel

- click RealTek HDMI Output and set as default (the parachute looking thing next to the wrench)

- take mouse pointer over RealTek HDMI Output and you should see Status as Active and not Ilde

- close ASIO Control Panel

- set Sample Rate as 48 kHz

- click Output and it should show a drop menu with 8 channel
post #135 of 9620
Quote:
Originally Posted by audioguy View Post

And the mystery continues. The first screen dump shows the options that REW gives me (it appears to be 2 channels). I then went to the windows control panel to set the output to use the HDMI (versus the internal speakes) and got this surprise where I can select any of the speakers shown on the diagram and have it make a sound. But how do I tell REW which speaker to select since it only gives me two choices???


Last time you posted, you couldn't get REW to output any sound. I responded with a procedure. Did you try the procedure? If yes, what was the result?
post #136 of 9620
Quote:
Originally Posted by JChin View Post


- highlight and right click RealTek HDMI Output and click Configure Speakers (it should show options of Stereo, Quadraphonic, 5.1 Surround and 7.1 Surround - I try clicking 7.1 but it won't allow maybe because my setup is 5.1)

-

Thanks for posting the procedure. However, on my system the only option shown is "Stereo".
post #137 of 9620
Quote:
Originally Posted by AustinJerry View Post

Thanks for posting the procedure. However, on my system the only option shown is "Stereo".

Same here, at first only Stereo and can't produce sound from either two speakers.

When clicking on ASIO Control Panel my AMD show up as Idle.

Does RealTek show Idle or active?
post #138 of 9620
I can now see 8 possible channels of output



but I now get the following message when I try to measure and I have no idea what it means



Also, what setting should I have for input device as it does not show the mic as an option on the usb port

post #139 of 9620
Thanks Jason for putting this thread together. I think in the future what would be fantastic is to create a youtube tutorial on how to use REW with a USB Microphone, showing people exactly how you go through with the set up process, step by step.
post #140 of 9620
Quote:
Originally Posted by AustinJerry View Post

I would like to add some comments about the purpose and direction of this thread.  These comments are prompted by Jason's answers to my list of questions.  While the answers are interesting, I am concerned that the information is too much, too soon.  There are many topics ahead of us, and we should discipline ourselves to focus on one important topic before we move on to the next.  Remember when you were taking those college courses?  On the first day of class, you received a syllabus which provided the list of topics to be covered, and the order in which they would be presented.  (I know, it's been over 45 years since I saw a college classroom, but I still remember...)

 

I think we should agree on an outline for the thread, focus on each item in order, and master it before proceeding.  An example of an outline:

 

- Assembling the hardware and software components comprising the REW kit, and mastering the techniques of configuring the components so REW is completely functional.

 

- Calibrating the mic and soundcard in preparation for taking accurate measurements.

 

- Generating and interpreting frequency response measurements.

 

- Generating and interpreting waterfall graphs.

 

- Generating and interpreting ETC graphs.

 

- Case studies:  Picking forum participants' measurements, identifying issues, and discussing approaches on resolving the issues as a team.

 

What I am trying to say is that if we try and discuss all these topics at the same time, we are going to get bogged down, and some of us may become discouraged and leave.  REW is an elephant, and we need to be the pygmies, eating it one bite at a time....  wink.gif

Agreed Jerry. By coincidence, your outline above is very similar to the one I have made for the FAQ.

 

I think many of us need a very basic, step by step setup guide, telling us how to connect, what to set in the REW program and the ASIO control panel, what to leave as defaults etc. So far, I seem to have got going by trial and error, but I am unsure about many of the settings in REW and whether I need to adjust them. I am also unsure about how to set the volume level (we apparently need to test at 100dB - that in itself gives me cause for a little concern) and various other things.

post #141 of 9620
Quote:
Originally Posted by audioguy View Post

And the mystery continues. The first screen dump shows the options that REW gives me (it appears to be 2 channels). I then went to the windows control panel to set the output to use the HDMI (versus the internal speakes) and got this surprise where I can select any of the speakers shown on the diagram and have it make a sound. But how do I tell REW which speaker to select since it only gives me two choices???



You got to the same place as I did. I made the Prepro my default choice in Windows and selected 7.1 in that other 'configure' dialog (although I don't think that matters).

 

Then when I went back to REW preferences and selected the dropdown box I can see 8 channels.

post #142 of 9620
Quote:
Originally Posted by kbarnes701 View Post

You got to the same place as I did. I made the Prepro my default choice in Windows and selected 7.1 in that other 'configure' dialog (although I don't think that matters).

Then when I went back to REW preferences and selected the dropdown box I can see 8 channels.

Were you able to generate any test signals. We are soooooooooooo close but yet sooooooooo far. This has been just like the typical struggles I have always had with REW. Not EXACTLY plug-n-play rolleyes.gif
post #143 of 9620
Quote:
Originally Posted by audioguy View Post

Quote:
Originally Posted by kbarnes701 View Post

You got to the same place as I did. I made the Prepro my default choice in Windows and selected 7.1 in that other 'configure' dialog (although I don't think that matters).

Then when I went back to REW preferences and selected the dropdown box I can see 8 channels.

Were you able to generate any test signals. We are soooooooooooo close but yet sooooooooo far. This has been just like the typical struggles I have always had with REW. Not EXACTLY plug-n-play rolleyes.gif

 

Yes - I could generate some feeble little test tones via that Windows config dialog and also, from REW, I could select any of the 8 channels shown and generate a proper test tone. By selecting a second speaker I could generate test tones through, eg, L and Subs or R and Subs etc.

 

I am sure you are very close. If you follow the steps in JChin's post above, that is the exact same procedure I used.

post #144 of 9620
Quote:
Originally Posted by kbarnes701 View Post

Quote:
Originally Posted by AustinJerry View Post

I would like to add some comments about the purpose and direction of this thread.  These comments are prompted by Jason's answers to my list of questions.  While the answers are interesting, I am concerned that the information is too much, too soon.  There are many topics ahead of us, and we should discipline ourselves to focus on one important topic before we move on to the next.  Remember when you were taking those college courses?  On the first day of class, you received a syllabus which provided the list of topics to be covered, and the order in which they would be presented.  (I know, it's been over 45 years since I saw a college classroom, but I still remember...)

I think we should agree on an outline for the thread, focus on each item in order, and master it before proceeding.  An example of an outline:

- Assembling the hardware and software components comprising the REW kit, and mastering the techniques of configuring the components so REW is completely functional.

- Calibrating the mic and soundcard in preparation for taking accurate measurements.

- Generating and interpreting frequency response measurements.

- Generating and interpreting waterfall graphs.

- Generating and interpreting ETC graphs.

- Case studies:  Picking forum participants' measurements, identifying issues, and discussing approaches on resolving the issues as a team.

What I am trying to say is that if we try and discuss all these topics at the same time, we are going to get bogged down, and some of us may become discouraged and leave.  REW is an elephant, and we need to be the pygmies, eating it one bite at a time....  wink.gif
Agreed Jerry. By coincidence, your outline above is very similar to the one I have made for the FAQ.

I think many of us need a very basic, step by step setup guide, telling us how to connect, what to set in the REW program and the ASIO control panel, what to leave as defaults etc. So far, I seem to have got going by trial and error, but I am unsure about many of the settings in REW and whether I need to adjust them. I am also unsure about how to set the volume level (we apparently need to test at 100dB - that in itself gives me cause for a little concern) and various other things.

Both you are aware there is a REW online help file by author JohnM that addresses many of the subjects listed above?
I've used it countless times in my ongoing REW usage past 4+ years.

Enjoy the acoustic journey! Just remember, it's a slippery slope, meaning you have to establish goals and objectives to know when you've reached them.
Measurements for sake of measuremehnt w/o a rational plan to guide you can leave open ended questions, that is why I posted the small room acoustics background info earlier in this thread.
http://www.hometheatershack.com/roomeq/wizardhelpv5/help_en-GB/html/index.html



BTW, even though REW is "free", I've used it so much I did donate a few $ towards the cause.
I have no affilication with REW, JohnM, etc. I just believe in giving back based on my experience and how it helped me.
Each of you should consider what to do, based on your own ethics.
http://www.hometheatershack.com/roomeq/#donations
Quote:
If you have found REW useful and would like to make a donation to support further development you can do so by clicking the donation button below.

Edited by mtbdudex - 1/9/13 at 5:14am
post #145 of 9620
Quote:
Originally Posted by mtbdudex View Post

Both you are aware there is a REW online help file by author JohnM that addresses many of the subjects listed above?
I've used it countless times in my ongoing REW usage past 4+ years.

Enjoy the acoustic journey! Just remember, it's a slippery slope, meaning you have to establish goals and objectives to know when you've reached them.
Measurements for sake of measuremehnt w/o a rational plan to guide you can leave open ended questions, that is why I posted the small room acoustics background info earlier in this thread.
http://www.hometheatershack.com/roomeq/wizardhelpv5/help_en-GB/html/index.html



BTW, even though REW is "free", I've used it so much I did donate a few $ towards the cause.
I have no affilication with REW, JohnM, etc. I just believe in giving back based on my experience and how it helped me.
Each of you should consider what to do, based on your own ethics.
http://www.hometheatershack.com/roomeq/#donations
Quote:
If you have found REW useful and would like to make a donation to support further development you can do so by clicking the donation button below.

 

Thanks for reminding me about that link to the online help - very useful.

 

I will certainly make a donation if I find the program as useful as I am hoping it will be.

post #146 of 9620
One step forward and two steps backwards.

I have not been able to have the mic available as an input option and now it is (not sure how I made that happen). But now, I can not the the HDMI output to be active (it shows idle). I tried clicking the umbrella thingie to no avail. Now what??

post #147 of 9620
Quote:
Originally Posted by audioguy View Post

One step forward and two steps backwards.
I have not been able to have the mic available as an input option and now it is (not sure how I made that happen). But now, I can not the the HDMI output to be active (it shows idle). I tried clicking the umbrella thingie to no avail. Now what??

Hi audioguy, try exit out REW completly and reopen.
post #148 of 9620
I have started REW multiple times. I have restarted my computer multiple times, I have made sure that both the mic and hdmi outputs are default and I can either get the mic to be recognized OR the 8 channels of output but not both and I have no idea why it partially works when it does.

I must say I am a bit ticked. The only reason I ordered the new USB mic and tried this all over again was because it was posted that with this new version of the software and the USB mic, it was now a plug-n-play solution, It is not one bit less complex and hard to set up than the original version where I had to screw around with the sound card and could never get consistent results.

I was a complete moron for buying into the plug-n-play concept and have now wasted hours and hours and hours and still (a) can't get the system to even setup consistently and (b) generate a single test signal. What a complete waste.

While I am sure, once running, REW is a fine tool but using the words REW and plug-n-play in the same sentence is a joke.
post #149 of 9620
Quote:
Originally Posted by audioguy View Post

I have started REW multiple times. I have restarted my computer multiple times, I have made sure that both the mic and hdmi outputs are default and I can either get the mic to be recognized OR the 8 channels of output but not both and I have no idea why it partially works when it does.
I must say I am a bit ticked. The only reason I ordered the new USB mic and tried this all over again was because it was posted that with this new version of the software and the USB mic, it was now a plug-n-play solution, It is not one bit less complex and hard to set up than the original version where I had to screw around with the sound card and could never get consistent results.
I was a complete moron for buying into the plug-n-play concept and have now wasted hours and hours and hours and still (a) can't get the system to even setup consistently and (b) generate a single test signal. What a complete waste.
While I am sure, once running, REW is a fine tool but using the words REW and plug-n-play in the same sentence is a joke.

If I were you, now I would take a break, a day maybe two. And then suddenly the light will come, you will see!! wink.gifwink.gif

BTW, IIRC nodoby said REW was plug-and-play, how could it be PNP anyway. It's the usb mic that is PNP compared to previous mics with pre-amps and complicated calibration routines. Now the new MiniDSP UMIK-1 usb mic once plugged in will be recognized immeditaley by REW and the built-in calibration file with automatically downoad itself into REW.

See Ya later. cool.gif
post #150 of 9620
Quote:
Originally Posted by audioguy View Post

I have started REW multiple times. I have restarted my computer multiple times, I have made sure that both the mic and hdmi outputs are default and I can either get the mic to be recognized OR the 8 channels of output but not both and I have no idea why it partially works when it does.

I must say I am a bit ticked. The only reason I ordered the new USB mic and tried this all over again was because it was posted that with this new version of the software and the USB mic, it was now a plug-n-play solution, It is not one bit less complex and hard to set up than the original version where I had to screw around with the sound card and could never get consistent results.

I was a complete moron for buying into the plug-n-play concept and have now wasted hours and hours and hours and still (a) can't get the system to even setup consistently and (b) generate a single test signal. What a complete waste.

While I am sure, once running, REW is a fine tool but using the words REW and plug-n-play in the same sentence is a joke.

 

Can you not return the mic for a refund if you have only had it a few days?

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