Can't get any output using REW Please HELP!!

[Julien43]

You guys must get tired of troubleshooting a bad set-up!!

I can not get any output when I try to set the Measurement Level in REW

I'm trying to get the signal to my pre amp so I can get a measurement of my mains speaker bass response

What is strange is that when I shut down the computer with everything set to do this, the system "shut down" wave is heard through the correct mains speaker

I know I have something wrong, but can't figure out what it is

I have chose "Speaker" for output. I have also left it at the default
"choose output"

I have no idea where to look next

Thanks much
Julien

[brucek]

I have also left it at the default "choose output"

Why? Choose your soundcard from the selection given.

Like this:




brucek

[Julien43]

Bruce "Choose your soundcard from the selection given."

Yes Bruce, That is what I have done. I just meant to state that I had tried both "Speaker" and "choose output" from the drop down underneath where I had selected my soundcard

Julien

[brucek]

Can you post a picture of REW like I have done and also a picture of your mixer settings...

[Julien43]

Here they are

[brucek]

And when you get to the final step in the Set Measurement Level do you see the picture below with the VU meter showing green, and the Wave at 1.000 and Output at 0.500 and able to adjust the level to something like -12dB as shown? Yet there is no signal going to your receiver?



brucek

[Julien43]

Bruce Writes: And when you get to the final step in the Set Measurement Level do you see the picture below with the VU meter showing green, and the Wave at 1.000 and Output at 0.500 and able to adjust the level to something like -12dB as shown? Yet there is no signal going to your receiver?

The one thing that is different is that the output goes to 0.501. No test signal is sent to my pre-amp
If I shut down the computer I do hear the "System Shut-down" tones through the proper speaker

[brucek]

If I shut down the computer I do hear the "System Shut-down" tones through the proper speaker

Which sure tells us that the cable is correct...

How about the Windows mixer when REW is running. Does the playback mixer look like this for Volume and Wave (unmuted and with the same Volume shown in REW)? In fact, raising and lowering the slider should reflect on the REW picture I showed before. Clicking the Mutes will reflect in REW too?



brucek

[Julien43]

Does the playback mixer look like this for Volume and Wave

The settings are the same and they are reflected (when altered) in REW
There are some minor differences

[brucek]

I have no more ideas. makes no sense. Everything seems OK.

I'll send John a note and see if he has any ideas.....

brucek

[JohnM]

Does the Indigo mixer panel look any different when REW has exited? Does it make any difference if you unmute Analog Out 1?

[muse77]

I noticed on Julien's post that he has his signal set to sign wave. Shouldn't he set it for pink noise to test? I have had mine on accidently on sine and found you won't hear anything by hitting green arrow until you manually adjust signal with cursor or the blue line in graph area.

To walk a mile takes a step at a time.

Bryan

[brucek]

Shouldn't he set it for pink noise to test?

When entering the Set Measurement Level routine, the Pink Noise is automatically selected..

brucek

[Julien43]

Thanks, folks, for all your help

I installed the card in another laptop and couldn't even get a card cal

I'm just going to get the SoundBlaster Live 24. Just 23 more minutes and I'll have won one on E-Pay

There is a ton of (that) model specific troubleshooting information for the SB here

It looks like, even I, can get it right with all those post covering the SB Live

Thanks again for all your help
It is most appreciated!!!

Julien

I should have read this thread before buying a Indigo IO card I can't get REW to work on my IBM Thinkpad with the Indigo card. The Indigo works fine with other applications.

The symptoms are (I'm using REW 4.00 built 673) :

• no sound output at all
• I can press the green arrow only once on the generator, after that it won't stay pressed.

I have an other computer with an Aardvark Q10 and REW doesn't like it too : I have to restart REW for each measurment.

Is there a reason why REW fails with quality sound devices ?

[JohnM]

REW accesses the soundcard via JavaSound, which in turn (on a Windows machine) uses the windows drivers. Many professional/semi-professional soundcards and audio applications bypass the Windows drivers and instead use ALSA drivers, which provide additional capabilities and lower latency - pro cards may not install Windows drivers by default, or may only include a minimal Windows driver with limited functionality. You may find WDM drivers for the card on the manufacturer's website and installing them may allow REW to properly access the card.

Thanks John for the quick reply, it makes a lot of sense.

I tried the internal sound card on the Thinkpad, going though the (well needed) "Calibrating the Soundcard " procedure. That went ok. But when trying an actual measurment I got the "data corrupted" message. I suppose the quality of the internal sound board is just not good enough ?

[brucek]

I suppose the quality of the internal sound board is just not good enough ?

No problem with internal soundcards, it's just that they usually don't have a line-in available in a laptop... mic-in will not suffice.

brucek

Thanks, that's the reason then.