Sweep Generator random bug during measurements - Home Theater Forum and Systems - HomeTheaterShack.com

 
Thread Tools
post #1 of 3 Old 07-15-12, 10:38 AM Thread Starter
Shackster
Andrea Tarasconi
 
Join Date: Jan 2012
Location: Italy
Posts: 48
My System
Sweep Generator random bug during measurements

Hello Folks, I am using ver 5 beta9 and I am having some random problems when measuring small sweep at low frequency.

I am basically measuring freq resp between 5 to 500 Hz and sometime, randomly, the sweep generator or the metering routins goes crazy reporting absourd low levels and unatural response.

When this happen, I change a bit the sweep paramenters (start freq from 5 to 10Hz) and I run again a couple of measures (usually are these new good), then I set back start to 5Hz and I keep going with my previous wanted measures (usually all goes well as expected).

I suppose this to be a sw bug.

Regards,
Andrea
AndreaT is offline  
Sponsored Links
Advertisement
 
post #2 of 3 Old 07-15-12, 03:27 PM
REW Author
 
JohnM's Avatar
John
 
Join Date: Apr 2006
Location: UK
Posts: 6,705
Re: Sweep Generator random bug during measurements

Possible some kind of synchronisation problem with the ASIO driver, assuming you are using ASIO (per your other post). Check the REW log files to see if any errors have been logged, their location is shown in the Help -> About REW dialog (usually your home directory in a subdirectory called REW).
JohnM is offline  
post #3 of 3 Old 07-16-12, 01:51 AM Thread Starter
Shackster
Andrea Tarasconi
 
Join Date: Jan 2012
Location: Italy
Posts: 48
My System
Re: Sweep Generator random bug during measurements

Hello Jonh, thanks for your quick reply.
I agree with you, it should be an ASIO driver issue, even because I have another strange problem: no Square Wave generation at 88.2kHz sampling rate, while I can get it at 44.1 kHz.
I will check the REW log as you suggest. If I will find anything of interest, I will update this thread, otherwise I will contact the MOTU support team reporting the problem with the ASIO driver.
Thanks and regards,
Andrea
AndreaT is offline  
Reply

Bookmarks

Tags
bug , generator , measurements , random , sweep

Quick Reply
Message:
Options

Register Now




PLEASE COMPLETE ALL REQUIRED FIELDS BELOW... THANKS!

REQUIRED FIELDS ON THIS PAGE
YOU MUST COMPLETE ALL OF THESE

Username
Password
Confirm Password
Email Address
Confirm Email Address
Random Question
Random Question #2




User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
PLEASE READ BELOW PRIOR TO ENTERING AN EMAIL ADDRESS!

ATTENTION!

YOU MUST ACTIVATE YOUR ACCOUNT!

Activation requires you reply to an email we will send you after you register... if you do not reply to this email, you will not be able to view certain areas of the forum or certain images... nor will you be able download software.

AN INVALID EMAIL ADDRESS WILL CAUSE YOUR ACCOUNT TO BE DELETED!

See our banned email list here: Banned Email List

We DO NOT respond to spamcop, boxtrapper and spamblocker emails... please add @hometheatershack DOT com to your whitelist prior to registering or you will get nowhere on your registration.


Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML is not allowed!
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

 


For the best viewing experience please update your browser to Google Chrome