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Nex 7 with External mic

Argomento aperto il Jul 23, 2012 10:08 PM , ultima risposta inviata il Aug 2, 2012 2:01 PM

in Cameras and Photo Frames > Alpha & NEX
outdoorjake
outdoorjake
1 post da
Jul 23, 2012

Hi,

 

I have recently tried to use a Rode videomic pro with my nex 7. The mic is working and sound is being recorded however there is a constant undertone hiss. I have tried recording in diferent places, so it is not a background noise. I have tried the mic out on my Mac and it works fine, which makes me think it is to do with the nex 7. I have fiddled with all of the settings on the mic, and it makes the noise regardless. Does anyone have any ideas of what this could be and how to fix it?

 

Thanks Jake.


  • Mick2011
    Mick2011
    1,104 post da
    Jun 15, 2011
    Scritto il Jul 24, 2012 1:27 PM

    Hi Jake, welcome to the Sony Forums

     

    I'm not sure (I've not used a Rode before) but I'd say this was a audio gain issue, rather than a bitrate problem. As such there's no setting on the mic for it, it's something the camera deals with.

     

    Unfortunately the NEX-7 (like all Sony alphas) only provides auto gain, so you basically have to deal with it in post-production. There are various tools you can use if you're interested.

     

    I do know manual gain is something many alpha users have requested and there's always a chance it will be included in a firmware update.

     

    As I say this is just a hunch, but it sounds like the most likely explanation.

     

    Cheers

    Mick


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  • cmosse
    cmosse
    312 post da
    Feb 24, 2012
    Scritto il Aug 2, 2012 2:01 PM

    Hi

    as already mentioned here you can not set a manual audio REC level or disable the auto gain from the camera.

     

    However there are some kind of adapters which will alloow to disable AGC and set the REC level manually. One of the most popular along "DSLR-filmakers" is the product from Beachtek:

     

    http://www.beachtek.com/products/hdslr/

     

    Another option is to use a high quality portable audio recorder. Sony offers some in their PRO lineup.

     

    http://pro.sony.com/bbsc/ssr/cat-audio/cat-recorders/product-PCMM10%2FR/

     

    Syncing the audio track to the video can be done in post processing; if you have advanced software like Premiere or Vegas Pro this can even be done automatically.

     

    Michael


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