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  1. MiniDV is supposed to be digital. These results are unacceptable for me.
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  2. Member hech54's Avatar
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    Tapes are still mechanical, moving-parts objects after all.....just sayin'.
    That is something that you may have no choice accepting.
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  3. All of the tapes do this to at least some extent. I doubt that this is typical behavior.
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  4. Not hearing anything here that isn't typical of a microphone in crowded room being handled while a piano plays. What is the digital "distortion" you believe you are hearing?
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  5. Dinosaur Supervisor KarMa's Avatar
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    Could be radio interference if there were a lot of people there, with cell phones transmitting data or other sources of radio transmissions. Certainly sounds like some kind of data being transmitted. I'm still just guessing.
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    Originally Posted by Hypersonic1 View Post
    MiniDV is supposed to be digital.
    Digital is just a medium. You still input analog signals, sample them digitally at a given interval and given accuracy (bit depth), and then upon playback it comes out analog again. Feed digital a garbage signal, and it will output a garbage signal.
    Last edited by KarMa; 18th Apr 2018 at 09:12.
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  6. No, that wouldn't make sense. I have three MiniDV tapes, and they are all doing it to some extent. What are the chances that it's the camcorder?
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  7. Originally Posted by KarMa View Post
    Could be radio interference if there were a lot of people there, with cell phones transmitting data or other sources of radio transmissions. Certainly sounds like some kind of data being transmitted. I'm still just guessing.
    I saw those peaks -- they still seem to be just overmodulated high end like you would expect with a cheap mic eq'd to favor voice. Maybe another example in a different setting would help.
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  8. I saw those peaks -- they still seem to be just overmodulated high end like you would expect with a cheap mic eq'd to favor voice. Maybe another example in a different setting would help.
    It even does this when the audio levels are at -20dB for a while.
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  9. https://forum.videohelp.com/threads/220566-audio-distortion-when-capturing-mini-dv

    This person appeared to have a similar problem. I really don't know what the solution is.
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  10. I just connected my TV to the analog AV jack on the camcorder. Same problem. That tells me that it's not a problem with the digital transfer.
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  11. Dinosaur Supervisor KarMa's Avatar
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    Originally Posted by Hypersonic1 View Post
    No, that wouldn't make sense. I have three MiniDV tapes, and they are all doing it to some extent. What are the chances that it's the camcorder?
    I have no back story on where these tapes were recorded. Were they in a crowded place with lots of people or were they in a place with few people, like your house?
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  12. I have no back story on where these tapes were recorded. Were they in a crowded place with lots of people or were they in a place with few people, like your house?
    They were recorded in different places. Even in the house with few people does have a little of that distortion. Not all parts of the tapes are distorted like that, but a lot of them are. One tape (the one with the clip above) distorts the most.
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  13. That distortion sounds like the squeaking of metal folding chairs. You can reduce it a lot (without harming the piano much) with a low pass filter at around 4 KHz.
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    Last edited by jagabo; 18th Apr 2018 at 20:10.
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    I have heard similar distortion on 8 mm and DAT tapes. All these formats read audio from a helical scanner with extremely tight tolerances. I think it has to do with tension and tracking, and perhaps the tapes shrinking a bit over time.
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  15. Originally Posted by jagabo View Post
    That distortion sounds like the squeaking of metal folding chairs. You can reduce it a lot (without harming the piano much) with a low pass filter at around 5 KHz.
    It does it in a house in some sections, and there are no metal folding chairs, or anything like that there.
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