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Thread: Digital noise on a sound recorder

  1. #11
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    I agree that the MP3 is bad. Would like to have the original file as a 24-bit WAV copied off the SD card.

    The level is low, but I'm assuming you recorded nothing with the mics on, so the noise level on the left channel is the kind of self-noise I'd expect with the record level actually set pretty high. That's why I'd like to hear it in relation to a spoken voice, The right channel is clearly faulty.

    But, if the unit is faulty, send it back to Zoom. If it's been like that for a long time and you're past the warranty date, you'll need to replace it. They don't sound like that normally.
    "... I know in the mornin' that it's gonna be good
    when I stick out my elbows and they don't bump wood." - Bill Kirchen

  2. #12
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    OK, this is what Zoom recommends you do with your recorder. You can find the info here.

    1. Make sure you are running the latest firmware.

    2. Make sure that you have the play back set at the same rate as you have the recording format set to.

    3. Set the record mode on "Auto" and do a test. If the meter peaks than back it off a hair or two till it stays within the green/yellow.

    If you do all of this and it still does the same as before, you really need to contact Zoom directly and see what your next step should be. Good luck and I hope it is a simple fix!

    My Wife Has A Home ~ I have a 2 Room Studio.

  3. #13
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    It's true you can't hear it when recording outdoors above ambient level, but it really does show up when recording indoors. Anyway it's crap - it shouldn't do it!

  4. #14
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    Quote Originally Posted by timtimtim View Post
    It's true you can't hear it when recording outdoors above ambient level, but it really does show up when recording indoors.
    Being indoors or out doors has no bearing on your problem when it comes to "ambient levels".

    {In atmospheric sounding and noise pollution, ambient noise level (sometimes called background noise level, reference sound level, or room noise level) is the background sound pressure level at a given location, normally specified as a reference level to study a new intrusive sound source}

    Anyway it's crap - it shouldn't do it!
    EVERY electronic device will create its own noise floor! From micro motors to digital recorders, regardless of how much money you spend. If it has an electric power supply than it has a noise floor. It is mathematically impossible not to do so. If you have tried every suggestion in this thread and you still are not happy with the results, than you will at least have gained a little knowledge for your next purchase.

    Honestly, Zoom makes different models of the H1. Which one do you own? You must also be aware that the H1 is absolutely the "Bottom of the Rung" digital recorders. Here is a video that may help you.


    Also, are you mounting this on a tripod, or your video recorder? If you are using it via hand held, that will also effect your audio. What mic are you trying to use? Is the mic cable balanced or UN-balanced? Are you going from a 1/4 inch mic cable into a 1/8 inch reducer? Is your mic cable going from mono to a stereo reducer? At this point, I really have run out of ideas to help you out. Like I said, if all else fails, contact Zoom directly. I am quite sure they have spent millions on R&D for this product as well as their other recorders.

    My Wife Has A Home ~ I have a 2 Room Studio.

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    Quote Originally Posted by timtimtim View Post
    It's true you can't hear it when recording outdoors above ambient level, but it really does show up when recording indoors. Anyway it's crap - it shouldn't do it!
    Did you buy it new? Has it always done this or is it something it started to do later? Stating the obvious, but if it always did it, it should have been returned/exchanged when new.

    While it's a $99 recorder, I've got the original Zoom H2 that is over 7 years old now and it still works. But, it's a consumer electronics piece, so pretty much a BIC when it comes to durability. If you bought it at someplace like Sweetwater with a 2-yr warranty, get it fixed/replaced. Otherwise, buy something new there.
    "... I know in the mornin' that it's gonna be good
    when I stick out my elbows and they don't bump wood." - Bill Kirchen

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  7. #16
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    Thanks to all for your help. I just bought a Tascam DR22WL and its great, absolutely no digital noise.

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    Quote Originally Posted by timtimtim View Post
    Thanks to all for your help. I just bought a Tascam DR22WL and its great, absolutely no digital noise.
    Great choice! Maybe you can give us a link to one of your projects after using you new recorder.

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    A post script to this: when I connected the Tascam to the power supply from my mic pre-amp, digital noise re-appeared. After days of experimenting I eventually cured it by adding three series 3.3 ohm resistors in the power line to the Tascam and three .1uF capacitors to ground, so blocking digital noise from getting from the Tascam into the mic pre-amp. What a relief. So the poor old Zoom H1 wasn't to blame. So now I've got two sound recorders.

  10. #19
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    Though the H1 did have digital noise when using it's own mics, so it wasn't so good really, though probably OK on ext mic?

  11. #20
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    Quote Originally Posted by timtimtim View Post
    A post script to this: when I connected the Tascam to the power supply from my mic pre-amp, digital noise re-appeared. After days of experimenting I eventually cured it by adding three series 3.3 ohm resistors in the power line to the Tascam and three .1uF capacitors to ground, so blocking digital noise from getting from the Tascam into the mic pre-amp. What a relief. So the poor old Zoom H1 wasn't to blame. So now I've got two sound recorders.
    Do you have the same problem if you just use the battery power?

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