Become a Site Supporter and Never see Ads again!

Author Topic: How to test a homemade battery box?  (Read 1426 times)

0 Members and 1 Guest are viewing this topic.

Offline attheshow

  • Trade Count: (0)
  • Taperssection Regular
  • **
  • Posts: 180
How to test a homemade battery box?
« on: September 16, 2007, 08:28:06 PM »
I recently built a version of the greenmachine DIY battery box (seen on the Live Recording section of forums.minidisc.org). I know that it "works" in the sense that I get a stereo signal from the mics through it and into my recorder. Now I'd like to test it to see if it is adding or taking away anything from the recordings I make using it (i.e. unintended bass rolloff, crosstalk, noise). Is there a reliable way that I can check this? Any other sorts of tests that are recommended before I record an "important" show with it?
Mics: MM-HLSC-1, ECM-737, ECM-719
Recorders: R09, MZ-RH1, MZ-R70, MBP
BBox: Greenmachine DIY, CA-UBB (on the way!)

Offline boojum

  • Trade Count: (1)
  • Needs to get out more...
  • *****
  • Posts: 3633
  • Gender: Male
Re: How to test a homemade battery box?
« Reply #1 on: September 16, 2007, 09:12:18 PM »
Other than listening and closely examining in a good audio editor I can think of no way that does not involve expensive gear.    :(
Nov schmoz kapop.

Offline SmokinJoe

  • Trade Count: (63)
  • Needs to get out more...
  • *****
  • Posts: 4203
  • Gender: Male
  • "75 and sunny"... life is so much simpler.
    • uploads to archive.org
Re: How to test a homemade battery box?
« Reply #2 on: October 08, 2007, 07:01:13 PM »
Not an expert here... but a suggestion... what I would do.

- Find a cheap expendable CD player... like the old generic diskman at the bottom of the kids toybox...
- play a CD out from that into your battery box, like it was mics, and record into your recorder.  Yes, you are feeding 9V into the output of the CD player... which isn't a good idea, but I don't THINK it will fry the CD player short term.  If I'm wrong, that's why I said use a cheap expendable CD player. ;D
- take your recording and compare to the original looking for artifacts.
Mics: Schoeps MK4 & CMC5's / Gefell M200's & M210's / ADK-TL / DPA4061's
Pres: V3 / ST9100
Decks: Oade Concert Mod R4Pro / R09 / R05
Big Rig: split snake > Focusrite & Presonus Pres > ADAT > Alesis HD-24 > Protools 11
Daughter's rig:  AT4050ST > Busman Hybrid R4
Photo: Nikon D700's, 2.8 Zooms, and Zeiss primes
Playback: Raspberry Pi > Modi2 Uber > Magni2 > HD650

Offline attheshow

  • Trade Count: (0)
  • Taperssection Regular
  • **
  • Posts: 180
Re: How to test a homemade battery box?
« Reply #3 on: October 08, 2007, 11:14:15 PM »
+T SmokinJoe I'll give that a try!
Mics: MM-HLSC-1, ECM-737, ECM-719
Recorders: R09, MZ-RH1, MZ-R70, MBP
BBox: Greenmachine DIY, CA-UBB (on the way!)

Offline beefstew

  • Trade Count: (0)
  • Taperssection Member
  • ***
  • Posts: 675
  • Gender: Male
  • 18
Re: How to test a homemade battery box?
« Reply #4 on: December 25, 2007, 10:23:35 PM »
how did u make it? i tried using the greenmachine DIY and it didnt work for me  :(
do you have pics of the process?
*Audio*
Mics:
SP-CMC-19
Panasonic WM61a

Recorders:
MZ-RH910 (Hi-MD)
Sony TC-WE435 (CASS)

*Video*
Canon ZR-500 [Mini DV]
54" Tripod

I spend most of my money on gambling, booze, and women. The rest i spend foolishly.

 

RSS | Mobile
Page created in 0.094 seconds with 46 queries.
© 2002-2020 Taperssection.com
Powered by SMF