Issues with Emu tracker and THD measurements - Page 17

Salas · 20th April 2010, 05:12 PM

He, he nice performance manual.

ikoflexer · 20th April 2010, 05:29 PM

Good report, thanks for the link.

Stefanoo · 20th April 2010, 08:02 PM

Nice article.
As you guys know I have been using the EMU Tracker with SpectraPlus.

Unfortunately as far as numbers are concerned the problem with this system is basically the high frequency noise at the output of the generator.
Also, the problem is that the measuraments are level and frequency dependant, meaning, you won't get the same results if the output of your DUT and/or the output of the soundcard that feeds the input of the DUT will change in amplitude and/or frequency.

Not to talk about the distortion above 7-8KHz and the higher the worse.

My self, I have decided to switch to a more professional distortion measurement system and bought a nice working SoundTechnology 1710A and external generator 1410A because I was going nuts trying to make reliable measurements.

I will probably keep using the soundcard as spectrum analyzer as I think it is preatty reliable, thusu running a FFT of the Distortion.

PB2 · 16th July 2011, 06:46 PM

Has anyone seen online reports of how the Juli@ card works in practice for measurement purposes?

There is this report but I'm wondering if anything else has been reported online - I thought they once provided some spectra plots but don't see them now:
ESI and AUDIOTRAK SOUNDCARDS for PRAXIS

sameerdhiman · 3rd August 2011, 11:50 AM

Hi,

I am also planning to purchase a sound card for measurement purpose. The sound card in my mind is ESI's Juli@ which is available around 8,000/- Rs (INR).

Bob: Could you please post noise floor and some loopback tests of your Juli@ using ARTA.

I want to be sure before investing because 8000/- Rs is a huge amount for me.

Regards,
Sameer

Salas · 4th May 2012, 01:20 AM

Does anybody have older than V1.3 Emu tracker/202 drivers to share for XP? Can't find my original CD.

20th April 2010, 08:02 PM	#163
Stefanoo diyAudio Member Join Date: Apr 2006 Location: italia - ora USA -WI	Nice article. As you guys know I have been using the EMU Tracker with SpectraPlus. Unfortunately as far as numbers are concerned the problem with this system is basically the high frequency noise at the output of the generator. Also, the problem is that the measuraments are level and frequency dependant, meaning, you won't get the same results if the output of your DUT and/or the output of the soundcard that feeds the input of the DUT will change in amplitude and/or frequency. Not to talk about the distortion above 7-8KHz and the higher the worse. My self, I have decided to switch to a more professional distortion measurement system and bought a nice working SoundTechnology 1710A and external generator 1410A because I was going nuts trying to make reliable measurements. I will probably keep using the soundcard as spectrum analyzer as I think it is preatty reliable, thusu running a FFT of the Distortion. __________________ Stefano

16th July 2011, 06:46 PM	#164
PB2 diyAudio Member Join Date: Sep 2004 Location: North East Blog Entries: 1	Has anyone seen online reports of how the Juli@ card works in practice for measurement purposes? There is this report but I'm wondering if anything else has been reported online - I thought they once provided some spectra plots but don't see them now: ESI and AUDIOTRAK SOUNDCARDS for PRAXIS __________________ Pete Basel http://www.linkedin.com/in/petebasel

3rd August 2011, 11:50 AM	#165
sameerdhiman diyAudio Member Join Date: Nov 2009 Location: Ghaziabad (Delhi NCR)	Hi, I am also planning to purchase a sound card for measurement purpose. The sound card in my mind is ESI's Juli@ which is available around 8,000/- Rs (INR). Bob: Could you please post noise floor and some loopback tests of your Juli@ using ARTA. I want to be sure before investing because 8000/- Rs is a huge amount for me. Regards, Sameer __________________ Regards, Sameer Dhiman

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20th April 2010, 05:29 PM	#162
ikoflexer diyAudio Moderator Join Date: May 2008 Location: Toronto	Good report, thanks for the link.

4th May 2012, 01:20 AM	#166
Salas diyAudio Chief Moderator Join Date: Oct 2002 Location: Athens-Greece	Does anybody have older than V1.3 Emu tracker/202 drivers to share for XP? Can't find my original CD.

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