Headphones & Mp3 Players forum

General discussion

edirol r1 thd numbers

by clasic / April 6, 2005 2:39 AM PDT

As I promised earlier I did some evaluation test to the edirol r1 concerning distortion levels and frequency response ,I was realy surprised by the good results received ,the measurement of the thd was done
with and sr780 fft spectrum analizer with the help of the internal frequency generator .
In all the tests the input and output wave was monitored with a digital scope.
using the wavelab 4,I made an 1khz 16 bits
44.1khz -3db amplitude file and uploaded directly to the memory card via the usb link to the r1
1, I measured the distortion ( 2nd and 3rd harmonic) in playback mode and the result amazing 0.01% !!!!
2_ I recorded via the line imput an 1 khz signal with an amplitude of all recording bars less one.
the record/playback with an output signal of 1.5v ptp
was 0.035% !!!! (less than the pmd660)
3 the samne signal was injected at the mic input
to reach all record bars less one ,the result 0,04%
4 the frequency response was done recording various
frequencies from 20hrz to 20khz ,at 20hz -0.2db flat to 20khz with a drop of -1.1db !!!!
is amazing how good is this machine
when checking the frequency response i put also 5hrz
it was replayed without distortion with a moderate attenuation

Discussion is locked
You are posting a reply to: edirol r1 thd numbers
The posting of advertisements, profanity, or personal attacks is prohibited. Please refer to our CNET Forums policies for details. All submitted content is subject to our Terms of Use.
Track this discussion and email me when there are updates

If you're asking for technical help, please be sure to include all your system info, including operating system, model number, and any other specifics related to the problem. Also please exercise your best judgment when posting in the forums--revealing personal information such as your e-mail address, telephone number, and address is not recommended.

You are reporting the following post: edirol r1 thd numbers
This post has been flagged and will be reviewed by our staff. Thank you for helping us maintain CNET's great community.
Sorry, there was a problem flagging this post. Please try again now or at a later time.
If you believe this post is offensive or violates the CNET Forums' Usage policies, you can report it below (this will not automatically remove the post). Once reported, our moderators will be notified and the post will be reviewed.
Collapse -
Edirol R-1 SPL
by consuming / April 8, 2005 2:41 AM PDT
In reply to: edirol r1 thd numbers

Any idea what the SPL is for the internal mics? I've had zero success recording bands without clipping.

Collapse -
internal mikes?
by Artemiy / April 10, 2005 11:10 PM PDT
In reply to: edirol r1 thd numbers

Wow, thank you very much for these numbers. I am developing an R-1 FAQ now and I will include these.

I'd like to ask, can you measure the frequency response with the built-in mikes? That would be great! Thanks!

Popular Forums
Computer Newbies 10,686 discussions
Computer Help 54,365 discussions
Laptops 21,181 discussions
Networking & Wireless 16,313 discussions
Phones 17,137 discussions
Security 31,287 discussions
TVs & Home Theaters 22,101 discussions
Windows 7 8,164 discussions
Windows 10 2,657 discussions


Help, my PC with Windows 10 won't shut down properly

Since upgrading to Windows 10 my computer won't shut down properly. I use the menu button shutdown and the screen goes blank, but the system does not fully shut down. The only way to get it to shut down is to hold the physical power button down till it shuts down. Any suggestions?