Hey Richard, the MR-1000 has some issues regarding HD vibration  
sensitivity which could have been the origin of the pop. Not placing  
gear that might need to be adjusted on the fly in direct contact with  
the recorder and a stable platform (rather than over the shoulder  
use) seems to eliminate this problem. Another issue is a relatively  
sensitive mic preamp which can overload. Here's a link to some self  
noise comparisons with other solid state recorders;
http://www.avisoft.com/recordertests.htm
The newer SD702 is a lower priced version of the 722 and uses SD  
cards and/or an external firewire HD rather than the internal HD.  
With the SD cards, battery life should be greatly improved also.
Steve Koto
On Aug 27, 2008, at 10:32 AM, Richard L. Hess wrote:

> At 11:01 AM 2008-08-27, Craig Breaden wrote:
>> Hi all,
>>
>> One of our donors, a collector of traditional songs, has just
>> purchased a Korg MR-1000 1-bit recorder to do his field recording.
> ...
>> I created  44.1/16-
>> and 24-bit versions using Audiogate, trying to get an idea of what a
>> user copy would sound like, and noticed some digital artifacts thrown
>> in around what had been, on the original file, a very soft pop in the
>> background.  This was not encouraging, although I realize I could
>> render at a higher resolution using Audiogate then create the user
>> copy using WaveLab.  He's on the fence, wondering if he should go  
>> back
>> to his Tascam, and from some of the discussion last year on the list
>> regarding 1-bit, I'm not certain he shouldn't.  Any thoughts?
>
> Hello, Craig,
>
> This is indeed an interesting question.
>
> The first question I have for you, is can't he capture in 96/24 on  
> the Korg instead of1 bit DSD?
>
> I would like you to evaluate all of the following transfer modes of  
> the audio surrounding this click and report back to us, if you can:
>
> MR-1000DSD------------analog-----------studio 96/24 converter
> MR-1000DSD file-------audiogate----------------96/24 file
> MR-1000DSD-----------SPDIF/AES--------------96/24 file
> (I don't know if this is possible since the original was DSD and I
> don't know if the Korg can do the conversion inside before
> outputting SPDIF/AES)
>
> I'm trying to isolate the problem to the Audiogate software with  
> these tests. We have waaay too many variables.
>
> Of course, then downsampling all three in Wavelab to 44.1/16 would  
> need to be tried.
>
> I would be willing to downsample all three in Sampitude to 44.1/16  
> if you wish as one colleague says he can hear a difference between  
> Wavelab and Samplitude, but I have not with the limited use I've  
> put Wavelab to (he's used it a lot more). This is an echo of our  
> thread last week <sigh>!
>
> More tests can present themselves, like comparing the Korg in DSD  
> mode vs. 96/24 mode, then comparing the Korg to the Tascam and  
> perhaps a rented Sound Devices 702/722. I selected the SD722 for  
> field recording with a pair of DPA 4006 TL mics--actually I got the  
> SD after I got the mics as I wanted something that would truly do  
> justice to the mics.
>
> Cheers,
>
> Richard
>
> Richard L. Hess                   email: [log in to unmask]
> Aurora, Ontario, Canada       (905) 713 6733     1-877-TAPE-FIX
> Detailed contact information: http://www.richardhess.com/tape/ 
> contact.htm
> Quality tape transfers -- even from hard-to-play tapes.