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Gear / Technical Help => Recording Gear => Topic started by: Will_S on September 28, 2011, 10:09:51 PM

Title: Tascam DR-2D frequency response
Post by: Will_S on September 28, 2011, 10:09:51 PM

Inspired by this thread:

http://taperssection.com/index.php?topic=149215.0

I decided to test the frequency response of the mic-in and line-in inputs of my Tascam DR-2D.

First I generated white noise (in a 24 bit / 48khz aiff file) in Sound Studio, and ran a Fourier spectrum analysis on it:

(http://homepage.mac.com/satterwill/Source.jpg)

I then played this signal back through USB out > Lyrix Headstage > Tascam DR-2D at 24/44.1, either mic-in or line-in.

Both mic-in:
(http://homepage.mac.com/satterwill/MicIn.jpg)
And line-in:
(http://homepage.mac.com/satterwill/LineIn.jpg)
Appear to have pretty flat frequency response.

Please let me know if you see any flaws in this methodology.

Edit:  Low cut set to OFF, of course.

Title: Re: Tascam DR-2D frequency response
Post by: page on September 29, 2011, 01:10:26 AM

Can you zoom in? The DR-07 test was done with a very fine grain scale. I don't expect it to change much/anything, but it's something to consider.

Title: Re: Tascam DR-2D frequency response
Post by: Gutbucket on September 29, 2011, 02:09:54 AM

Looks good to me.  Thanks for the test, I can sleep better tonight.

Title: Re: Tascam DR-2D frequency response
Post by: sasa999 on September 29, 2011, 02:51:38 AM

can you make some tests with low cut filters?

Title: Re: Tascam DR-2D frequency response
Post by: Will_S on September 29, 2011, 09:06:17 AM

Quote from: page on September 29, 2011, 01:10:26 AM

Can you zoom in? The DR-07 test was done with a very fine grain scale. I don't expect it to change much/anything, but it's something to consider.

I don't think I can change the scale with the software I'm using, but note that the grid lines are 5 dB apart, same as the DR-07 test. 

I'll run a test with roll-off engaged tonight.

Title: Re: Tascam DR-2D frequency response
Post by: Todd R on September 29, 2011, 10:48:06 AM

Quote from: Gutbucket on September 29, 2011, 02:09:54 AM

Looks good to me.  Thanks for the test, I can sleep better tonight.

And record better tomorrow.  Ditto, thanks for the test. +T

Title: Re: Tascam DR-2D frequency response
Post by: zowie on October 02, 2011, 12:42:52 AM

Thanks.  This recorder has become rather appealing now that the price has dropped well below that of the M10.

Title: Re: Tascam DR-2D frequency response
Post by: flintstone on October 02, 2011, 04:53:55 PM

Thanks for the note about price.  B&H Photo Video has the DR-2D for $147.

Title: Re: Tascam DR-2D frequency response
Post by: Will_S on October 02, 2011, 06:25:27 PM

Quote from: sasa999 on September 29, 2011, 02:51:38 AM

can you make some tests with low cut filters?

Here you go:

(http://homepage.mac.com/satterwill/LowCut.jpg)

Title: Re: Tascam DR-2D frequency response
Post by: zowie on October 04, 2011, 01:44:03 PM

Thank you Will_S !

Title: Re: Tascam DR-2D frequency response
Post by: sasa999 on October 09, 2011, 05:12:11 PM

Tnx Will_S!