Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

PC Based Computer music servers, crossovers, and equalization

USB Soundcard for measurement
USB Soundcard for measurement
Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 15th October 2012, 06:13 PM   #11
Bksabath is offline Bksabath  United Kingdom
Banned
 
Join Date: Dec 2007
Tanks for the link Dave
  Reply With Quote
Old 15th October 2012, 06:33 PM   #12
euro21 is offline euro21  Hungary
diyAudio Member
 
Join Date: Sep 2004
Location: Budapest
M-audio Transit.
Attached Images
File Type: jpg M-audio Transit spectrum.jpg (130.0 KB, 575 views)
  Reply With Quote
Old 15th October 2012, 06:39 PM   #13
CharlieLaub is online now CharlieLaub  United States
diyAudio Member
 
Join Date: Mar 2007
Location: California
USB Soundcard for measurement
I am currently using an M-Audio Firewire 410. It's an external box with Firewire connection to the computer and its own wall wart PS. Noise floor falls from -120 dBFS at the lowest frequencies to -140dB FS at the highest frequencies. Max sampling rate is 96k Hz. It also has a built in mic preamp with defeatable phantom power. They are discontinued, but you can pick them up on Ebay for easily under $100.

The newer option is the ProFire 610. Mostly the same, but sampling rate up to 192k Hz. This goes for about $250 I think.

See attached pic of noise floor. This is done using REW:
REW - Room EQ Wizard Home Page

-Charlie
Attached Images
File Type: jpg measurement noise floor.jpg (82.3 KB, 561 views)

Last edited by CharlieLaub; 15th October 2012 at 06:44 PM.
  Reply With Quote
Old 16th October 2012, 12:31 AM   #14
luvdunhill is offline luvdunhill  United States
diyAudio Member
 
luvdunhill's Avatar
 
Join Date: Jul 2006
Doug, I can loan you a EMU 0404 USB, which in my opinion is the best choice. How can you beat try before you buy?
  Reply With Quote
Old 16th October 2012, 01:27 AM   #15
ScreamingLordByron is offline ScreamingLordByron  United States
Banned
 
Join Date: Sep 2011
Some more EMU0204 and EMU16 measurements are here

Soundcard Noise Performance - QuantAsylum Home Page

Some Roland measurements are here:

http://www.spectraplus.com/Downloads...TestReport.pdf
  Reply With Quote
Old 18th October 2012, 12:59 AM   #16
skidave is offline skidave  United States
diyAudio Member
 
skidave's Avatar
 
Join Date: Jul 2006
Location: Pennsylvania
USB Soundcard for measurement
I'd like to try the Emu 0404 if you are willing. I'll cover return shipping.

Dave
  Reply With Quote
Old 18th October 2012, 10:09 AM   #17
triplej is offline triplej
diyAudio Member
 
Join Date: Jun 2011
Location: Sydney
I have an E-MU 0204 and MI software and can measure down to 0.0003% distortion (without notch filters). Must use the balanced input to avoid earth loop noise even tho earth lift switches are part of the unit. For $230 odd dollars all up its a very effective solution for relative measurements.
  Reply With Quote
Old 22nd October 2012, 09:19 PM   #18
dsavitsk is offline dsavitsk  United States
diyAudio Member
 
dsavitsk's Avatar
 
Join Date: Jan 2005
Location: Hartford
Quote:
Originally Posted by luvdunhill View Post
Doug, I can loan you a EMU 0404 USB, which in my opinion is the best choice. How can you beat try before you buy?
I may take you up on that. I actually owned one for a week or so before I returned it. I recall there being a driver issue with it -- something like asio being required for using the digital output, but the free version of RMAA not supporting asio. But, I could certainly try it again as my current computer setup uses a different spdif output allowing me to work around that.

In the meantime, I picked up an M-Audio "MobilePre" that was on a huge sale and thus pretty cheap. Even cheap, it was probably not worth what I paid for it.
  Reply With Quote
Old 23rd October 2012, 12:04 PM   #19
dgta is offline dgta  United States
diyAudio Member
 
Join Date: May 2011
Quote:
Originally Posted by triplej View Post
I have an E-MU 0204 and MI software and can measure down to 0.0003% distortion (without notch filters). Must use the balanced input to avoid earth loop noise even tho earth lift switches are part of the unit.
How do you use balanced input? Don't see that provision.
Just got my 0204 and haven't studied it yet.
  Reply With Quote
Old 23rd October 2012, 09:38 PM   #20
triplej is offline triplej
diyAudio Member
 
Join Date: Jun 2011
Location: Sydney
Ahh yes its disguised as a 1/4 inch socket at first glance. It’s actually a combo XLR / 1/4 inch. It's definitely there

Specs:
Combo Preamplifiers (2)

Type:
- (1) Ultra-low noise combo preamplifier with Mic/Hi-Z/line inputs

- (1) Combo preamplifier with Hi-Z/line balanced input

- (1) 1/8" condenser mic input with 5V power
  Reply With Quote

Reply


USB Soundcard for measurementHide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not 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 code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Test & Measurement interface for Soundcard pmillett Equipment & Tools 783 17th July 2017 06:07 AM
Balanced Soundcard Interface for Power Amplifier Distortion Measurement lhquam Pass Labs 34 11th December 2013 05:55 PM
USB soundcard that can drive a usb headset? petasis PC Based 5 23rd November 2009 08:35 AM
Request for advice / high performance soundcard for measurement Gordy Solid State 8 14th February 2008 04:14 PM
USB jac grounding and USB measurement Evan Shultz Digital Source 4 20th January 2007 01:55 PM


New To Site? Need Help?

All times are GMT. The time now is 12:26 AM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright ©1999-2017 diyAudio
Wiki