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Jeff DLB

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    Sony MZ-RH90 + SoundPro BMC3 mics on order

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  1. The noise seems to be much more broad-band than a pure 60Hz tone. Attached is a noise sample (17sec, 2.8MB, WAV) with some talking and instrument sounds. I could not find a period of pure noise when nobody was making other sound, which is part of the problem when trying to filter the noise with Audacity. (I should try to get a pure-noise sample at home, though I'm not sure whether my AC has the same noise profile.) -Jeff DLB line_noise.wav
  2. I have some recordings that have AC line noise. Is there a way to filter out the noise? I tried using Audacity, but got very poor results with the noise removal and equalization filters. In the future, I suppose I will use batteries (what a pain) or perhaps a battery box for the mics (would that help?). -Jeff DLB
  3. Will, in fact I did do it myself. I found a pair of eyeglass retainers that are made of some sort of cloth tubes, somewhat like thick shoelaces. After some surgery I was able to slide the mics through. It works, and is very stealthy, but I need to add something to clasp the croakies & mics more tightly to the glasses so they keep their position. -Jeff DLB
  4. The parabolic mic reminds me of the 1974 movie "The Conversation" by Francis Ford Coppola, starring Gene Hackman and featuring a very young Harrison Ford. Has anybody else ever seen that film? It's one of my favorites. -Jeff DLB
  5. While searching unsuccessfully for Croakie-type eyeglass retainers at the local pharmacy, I found a very useful item. Amidst the sunglasses were a pair that had UV-shielded glass but were otherwise completely undarkened. These seem ideal for indoors stealth recording, where sunglasses would be out of place. I do not wear corrective lenses and previously had only found reading glasses with at least some amount of magnification. -Jeff DLB
  6. Many thanks for that information! I had not realized Sound Professionals sold croakies and had instructions for inserting the mics. This is very helpful. -Jeff DLB
  7. SoundPros builds them from scratch, I assume, so they can thread the wires through before attaching the capsules and jack. I am wondering whether I can take my already-assembled BMC3s and shove them through the croakies. So far I have not been able to find a local store that sells Croakies in order to inspect them myself.
  8. Argh! I was posting from my Treo, and my submission kept coming back with an HTTP error message, so I thought I had posted zero threads. Sorry! Now, about my original question...
  9. Is it possible to put SP-BMC2 mics into Croakies, or would I need to assemble separate capsules and wires in orde to make them fit? -Jeff DLB
  10. Jeff DLB


    Is there a simple remote that at minimum tells Rec/Pause status? I have the RH10 and the only problem is that you can't tell if you're actually recording when the unit is not visible. I recorded 5min of garbage this weekend when I thought I was paused; the opposite--not recording when desired--would have been worse.
  11. I recorded our basement jam session the other day. Thanks to the advice on this forum, I was able to get a faithful rendition of what we played without overloading by the drums or bass. I used SP-BMC3 mics -> radio shack attenuator -> MZ-RH10 minidisc mic in. I set the levels conservatively, and as a result got rather low amplitudes throughout. The good news is that using Audacity (outrageously great free! software) I can quickly boost the levels, and there is no noise that I can discern. The bad news is that I must do that for each track individually, and for each channel because one mic was getting lower volume. My two questions are: (1) is there a shortcut way in Audacity to have Effect: Amplify normalize each channel independently? I am splitting the stereo tracks, boosting each one, and then recombining. (2) Is there a program that would take a bunch of tracks and normalize each one, without me having to individually edit each song? Thanks for any info, Jeff DLB
  12. The other thread was interesting, but it did not answer ryst's question: "would the difference between 0.25 mV and 0.13 mV mean anything to the recording quality?" -Jeff DLB
  13. I think your ecording levels are much too low (13-15, you said). Try 25 the next night, and then go up or down based on the results. Make sure you are not set to "loud noises" or "low sensitivity". I have the SP-BMC3 mics and find them extremely sensitive. -Jeff DLB
  14. Agreed. However, thanks to those samples I just now discovered (I gotta get out more) that Robert Plant plays Morning Dew, one of my favorite tunes. Definitely a cover of Tim Rose's 1967 version, rather than the Grateful Dead (or Bonnie Dobson), but it's still nice that song is getting played. -Jeff DLB
  15. To play my MD in the car, I bought a cassette adapter that plugs into the headphone jack. I am surprised that there is so much hiss. I had always thought that hiss was a feature of the magnetic tape. Is it intrinsic to the magnetic encoding technique itself? How can I reduce it? Lowering the treble with the MD's equalizer has no effect on hiss. Turning on Dolby NR on the cassette player reduces hiss and all the other high frequencies, not surprisingly. Is there an easy way to get decent sound (no worse than a regular cassette or FM radio) from MD in the car? Thanks, Jeff DLB
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