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 Post subject: high pitched hum on mic
PostPosted: Wed Feb 02, 2011 6:16 pm 
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Joined: Mon Oct 27, 2008 6:53 pm
Posts: 140
Location: Almost Canada
I know someone had a problem with a high pitched hum on the outs but mine seems to have this problem with the built in mic. When I record from the mic the hum is pretty loud. I don't have the power supply-so it might just be that
Anyone have this problem when running on batteries? Does the power supply correct it?
Any fix?

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 Post subject: Re: high pitched hum on mic
PostPosted: Wed Feb 02, 2011 10:52 pm 
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Joined: Fri Sep 24, 2010 5:30 pm
Posts: 48
Location: CA&CO
I think I have this same problem on my sp202, I can run some experiments tonight.
do you mean using the mic to record sounds from the room, or the mic-in ?

i suppose the different variables to test would be:
rca in vs mic in vs built-in mic recording live sound
battery power vs power supply
live out vs headphone out
hi-fi mode vs standard mode vs lo-fi mode 1 vs lo-fi mode 2

any others i'm missing?


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 Post subject: Re: high pitched hum on mic
PostPosted: Thu Feb 03, 2011 1:30 am 
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Joined: Mon Oct 27, 2008 6:53 pm
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Location: Almost Canada
It's just the built in mic-the rca ins are fine. I'm going to try the 1/4 in as well. I haven't used it in a long time so I'm not sure if it has the same problem. I have a 9v power supply but it's 400ma and the 202 is 200ma-I'm not clear on the ma stuff so I don't want to fry it. Thanks for the help.

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 Post subject: Re: high pitched hum on mic
PostPosted: Thu Feb 10, 2011 4:44 am 
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solved. It's just hi-fi mode. Fine in other modes.

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