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Gear / Technical Help => Recording Gear => Topic started by: hobbes4444 on November 16, 2015, 06:02:07 PM

Title: Sony PCM-M10 AC adapter causes hum in recordings?
Post by: hobbes4444 on November 16, 2015, 06:02:07 PM
Just wondering if others have noticed the introduction of a hum in recordings when using the AC adapter with the M10.  I'm doing some vinyl transfers, and decided to use AC rather than batteries, and a low hum was loud and clear on the recordings.  Sigh. . .
Title: Re: Sony PCM-M10 AC adapter causes hum in recordings?
Post by: nulldogmas on November 16, 2015, 11:18:40 PM
The hum definitely doesn't appear when transferring from vinyl with batteries in?
Title: Re: Sony PCM-M10 AC adapter causes hum in recordings?
Post by: 2manyrocks on November 17, 2015, 12:43:10 AM
I have never used an AC adapter with an M10.  FWIW, I had an offbrand laptop power supply that introduced hum onto my laptop when I was recording via firewire from a Focusrite interface.  the hum went away when I switched to a factory power supply. 
Title: Re: Sony PCM-M10 AC adapter causes hum in recordings?
Post by: ScoobieKW on November 17, 2015, 11:41:54 AM
is your power adapter on the same circuit as the playback system?
Title: Re: Sony PCM-M10 AC adapter causes hum in recordings?
Post by: adrianb on November 17, 2015, 12:28:14 PM
My M10 power adapter is still in the box that it came in, where it has been since day one. If I was using the M10 to transfer 100 vinyl's I'd still use batteries.
Title: Re: Sony PCM-M10 AC adapter causes hum in recordings?
Post by: nulldogmas on November 17, 2015, 01:29:01 PM
I honestly forgot that the M10 even came with a power adapter until I saw this post.

But anyway, testing to see if the problem recurs while running with batteries seems like the necessary first step.
Title: Re: Sony PCM-M10 AC adapter causes hum in recordings?
Post by: morst on November 17, 2015, 05:53:56 PM
Just wondering if others have noticed the introduction of a hum in recordings when using the AC adapter with the M10.  I'm doing some vinyl transfers, and decided to use AC rather than batteries, and a low hum was loud and clear on the recordings.  Sigh. . .
Absolutely not. I prefer to use the AC adaptor when transferring vinyl, hate to have to do a side over if the batteries croak!

Never had a problem like that with the M10.