Did you consider trying a clean box or hum filter like you would use with guitar amplifiers? You run it into your mixer and plug your radio into that! Art and Behrenger make them. I was going to say you could get an isolation ground loop filter from Radio Shack but they aren't in business any more, and I doubt most of the sales people wouldn't know what you are talking about.

-----Original Message----- From: Danny Miles
Sent: Tuesday, August 29, 2017 8:49 AM
To: PC Audio Discussion List
Subject: Re: Issue with Buzz in Radio Recordings

Thanks.  I often have to move the wires around, which is why I thought
a new wire might solve the trick.  However, I can't get a completely
non-existent buzz without holding the middle of it up in the air,
which obviously isn't feasible.  I just find it odd that it does it
with the digital radio but not with the iPhone, as they're both
digital appliances and I don't move the wire when swapping over
devices (obviously I have to take the jack out of one and put it in
the other but the cable itself stays flat rather than up in the air
while attached to the iPhone and it remains in the same position).  Is
it possible that the iPhone is simply better designed for this sort of
thing than both of my other devices and, although I appreciate that
it's probably quite technical, I'd be grateful for any info on how to
identify suitable equipment for the future if that's the case.


On 8/29/17, Smiling? <bli...@sbcglobal.net> wrote:
If you seem to not get this buzz as you put it when you are recording
whatever from your iPhone, it must be something specifically with either the digital radio or some routing of the cables involved. Try moving the cables
around and see what comes of it because sometimes certain cables crossing
paths can cause noise depending on the quality of the shielding or lack

-----Original Message-----
From: Pc-audio [mailto:pc-audio-boun...@pc-audio.org] On Behalf Of Danny
Sent: Tuesday, August 29, 2017 05:19 AM
To: PC Audio Discussion List
Subject: Issue with Buzz in Radio Recordings

Hi.  For a long time now, I have noticed that I get buzzing in
recordings from my digital radio and tape recorder, even though using
the same set-up (2x RCA phono connectors in my mixer to 1x 3.5 mm jack
in the audio device in question) works perfectly when using my iPhone
to record.  I'm using GoldWave 5.65 (I know it's not the latest
version) and, although I've tried all of the hiss/hum removal options,
I can't seem to get rid of all of it.  The best result that I got was
when I used Stereo Center to keep just the channel with the least
(almost hardly any) buzz and then put that channel into a mono mix.
However, it still didn't remove the whole hiss and, of course, it lost
a lot of the bass as a result of removing the other channel.  I've
also tried buying a brand new lead but I'm still getting the same
results (at least, I've trialled it with the digital radio and am
still getting a lot of buzz, which I knew was going to happen as soon
as I plugged it in because I could hear it in my headphones via the

So, does anybody please know why this might be happening with two
devices but not with my phone, even though the radio is digital (so
it's not a matter of using a mono device)?  Also, does anyone know of
settings/processes that I can run with GoldWave or another piece of
software to successfully remove everything, or am I just going to have
to accept things as they are?

Many thanks in advance for any help, Danny

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