Intercom hiss


Technical information and Q&A applicable to all years and models of Goldwings
  • Sponsored Links
User avatar
dtrider
Posts: 185
Joined: Tue Sep 23, 2014 12:44 am
Location: Meridian, Id
Motorcycle: 2012 GL1800

Intercom hiss

Postby dtrider » Sat Jul 11, 2015 9:39 am



Ever since I got my bike (2012 Gl1800) I've noticed a hiss when the intercom was turned on. When I'm riding solo I turn the intercom off and the hiss goes away. I always figured that it was because of an open mic and was just something that I would have to live with. However since I recently got some molded ear buds, I also picked up an adapter that lets me plug them into the bike without the headset cable (lets me use them with my non-headset helmet). The hiss is still there even with no mic attached.

The hiss is only present when the intercom is turned on, and it doesn't change with engine speed or anything else. I wouldn't think that this would be a ground-loop problem, but what do I know. It's not a really big deal, but it might be nice if I could get rid of it. Any thoughts?


Every day is a good day for a bike ride. Some days are just better than others.
Image

User avatar
eagle1wing
Posts: 17
Joined: Wed Nov 19, 2014 12:56 pm
Location: Conway, SC
Motorcycle: 2012 CL1800 Gold Wing

Re: Intercom hiss

Postby eagle1wing » Sun Jul 12, 2015 9:23 am

I had the same problem on my 2012 GL 1800. It was more noticeable when the iPod was playing. My wife and I wear modular helmets and air comes up from around the neck. I put a second wind sock over the mic and turned to Intercom Mute down so only 1 bar was showing. That took care of it. Hope it works for you.

User avatar
dtrider
Posts: 185
Joined: Tue Sep 23, 2014 12:44 am
Location: Meridian, Id
Motorcycle: 2012 GL1800

Re: Intercom hiss

Postby dtrider » Sun Jul 12, 2015 9:57 am

I've thought about trying different socks since I do hear a little wind noise when my wife is on the bike, but in this situation I'm talking about a hiss that is there regardless of if the mic is even connected. If I turn the intercom off the hiss goes away, but if the intercom is on, the hiss is there even with no mic.
Every day is a good day for a bike ride. Some days are just better than others.
Image

User avatar
WingAdmin
Site Admin
Posts: 17046
Joined: Fri Oct 03, 2008 4:16 pm
Location: Strongsville, OH
Motorcycle: 2000 GL1500 SE
1982 GL1100A Aspencade (sold)
1989 PC800 (wife's!)
1998 XV250 Virago (sold)
2007 Aspen Sentry Trailer

Re: Intercom hiss

Postby WingAdmin » Mon Jul 13, 2015 8:13 am

For whatever reason, Honda decided that the microphone Goldwing's intercom should be open (hot) at all times. There is no muting circuitry. WHY they would not put a voice-activated muting system on it, so that the headsets don't continually pump amplified road and wind noise into your ears, is beyond me. Why does Honda do a lot of things?

You might want to look into the Mic Mutes product, which is an aftermarket microphone muting system.

Wayne
Posts: 139
Joined: Thu Nov 05, 2009 10:52 am
Location: Troy, Oh, & The Villages, Fl.
Motorcycle: 2000 Valkyrie Tourer
2008 GL1800 Level 3 White
2015 GL1800 Level 3 Red/Black Anniversary

Re: Intercom hiss

Postby Wayne » Mon Jul 13, 2015 12:18 pm

OP says the noise is there without a mic, using earbuds without mic. MicMutes will do nothing for him. What is being heard is more than probably amplifier white noise. All Honda intercoms have this problem to some degree. Due to mic amplifier being on all the time when using intercom, unlike a vox circuit which is turned on by the mic audio. When people switch from inefficient headset speakers to anything better I hear a lot of complaints about the white noise, especially from passengers who generally have better hearing than their partners. Wearing earbuds and using very efficient speakers really enhances the problem. No cure except going bluetooth or trade for M/C with vox system.

User avatar
WingAdmin
Site Admin
Posts: 17046
Joined: Fri Oct 03, 2008 4:16 pm
Location: Strongsville, OH
Motorcycle: 2000 GL1500 SE
1982 GL1100A Aspencade (sold)
1989 PC800 (wife's!)
1998 XV250 Virago (sold)
2007 Aspen Sentry Trailer

Re: Intercom hiss

Postby WingAdmin » Mon Jul 13, 2015 12:24 pm

Wayne wrote:OP says the noise is there without a mic, using earbuds without mic. MicMutes will do nothing for him. What is being heard is more than probably amplifier white noise. All Honda intercoms have this problem to some degree. Due to mic amplifier being on all the time when using intercom, unlike a vox circuit which is turned on by the mic audio. When people switch from inefficient headset speakers to anything better I hear a lot of complaints about the white noise, especially from passengers who generally have better hearing than their partners. Wearing earbuds and using very efficient speakers really enhances the problem. No cure except going bluetooth or trade for M/C with vox system.


Yeah, I had wondered if that was what he was talking about, but I figured with headphones attached, he more than likely also had a microphone attached.

The intercom amp is quite noisy, and is not well shielded from external noise either. Honda could really have done a much better job with the intercom on the Goldwing.

User avatar
PastoT
Posts: 294
Joined: Sun Jul 01, 2012 9:20 pm
Location: Mt Home, Idaho
Motorcycle: 2002 GL1800 (107k)

Re: Intercom hiss

Postby PastoT » Mon Jul 13, 2015 4:51 pm

DT, my 02 has the same white noise regardless of what I connect, even with nothing. Might help to turn down the treble a bit (makes it tolerable for me) but the noise is there regardless from the moment you turn on the intercom circuit. I chose to reroute my injected sources (radar detector/GPS) to the input on my GL2Way CB aux input that has less white noise. The intercom circuit is full of noise in our radios; have you noticed the horrid noises when you tap on the shelter (or drop the fuel door shut) with the intercom on?
Tom, in Mountain Home, Idaho
2002 GL1800 (Illusion Red) Non-ABS, 108k miles
Retired Air Force

"Audentes Fortuna Juvat"
Image

User avatar
dtrider
Posts: 185
Joined: Tue Sep 23, 2014 12:44 am
Location: Meridian, Id
Motorcycle: 2012 GL1800

Re: Intercom hiss

Postby dtrider » Mon Jul 13, 2015 8:51 pm

It's not horrible, but it is noticible. However I can pretty much ignore it after a few minutes of music. I was hoping that there would be an easy fix without having to tear into the electrical system and re-route everything. From what WA mentions, it sounds like even re-routing wouldn't be a guaranteed fix. I'll probably just learn to live with it.
Every day is a good day for a bike ride. Some days are just better than others.
Image

User avatar
Steve F
Posts: 381
Joined: Thu Apr 07, 2011 8:25 pm
Location: suburban Chicago
Motorcycle: 1976 Honda CB750F Cafe' (sold :>( )
'03 GL1800

Re: Intercom hiss

Postby Steve F » Tue Jul 14, 2015 11:46 am

PastoT wrote:DT, my 02 has the same white noise regardless of what I connect, even with nothing. Might help to turn down the treble a bit (makes it tolerable for me) but the noise is there regardless from the moment you turn on the intercom circuit. I chose to reroute my injected sources (radar detector/GPS) to the input on my GL2Way CB aux input that has less white noise. The intercom circuit is full of noise in our radios; have you noticed the horrid noises when you tap on the shelter (or drop the fuel door shut) with the intercom on?

LarryM operates Wingconnect and specializes in GL1800 audio systems repairs and upgrades. He calls this problem "microphonics" and is something he fixed on my system along with an audio upgrade. Not sure if he has found a fix for the "hiss" though. Email him about it and see if there is something he can do.
http://www.wingconnect.com/
"To ride is the reason, the destination the excuse."

Wayne
Posts: 139
Joined: Thu Nov 05, 2009 10:52 am
Location: Troy, Oh, & The Villages, Fl.
Motorcycle: 2000 Valkyrie Tourer
2008 GL1800 Level 3 White
2015 GL1800 Level 3 Red/Black Anniversary

Re: Intercom hiss

Postby Wayne » Tue Jul 14, 2015 3:12 pm

2012 does not have the microphonics or whatever you want to call it, only 2003 and older had it. the Hiss goes back to the 1980 intercom and has always been an aggravation.

User avatar
WingAdmin
Site Admin
Posts: 17046
Joined: Fri Oct 03, 2008 4:16 pm
Location: Strongsville, OH
Motorcycle: 2000 GL1500 SE
1982 GL1100A Aspencade (sold)
1989 PC800 (wife's!)
1998 XV250 Virago (sold)
2007 Aspen Sentry Trailer

Re: Intercom hiss

Postby WingAdmin » Tue Jul 14, 2015 3:17 pm

Microphonics refers to the result of very poor design practice where electronic parts that can transduce mechanical energy into electrical energy (i.e. inductors/coils) are used in the preamp section of an amplifier. These components certainly perform their intended design purpose, but have the unwanted side effect of translating mechanical vibration into electrical signals, which is then amplified by the preamp.

User avatar
redial
Posts: 1993
Joined: Mon Jan 03, 2011 1:17 am
Location: Kapunda, SouthAustralia
Motorcycle: 1997 GL1500 Spectre Red Aspencade

Re: Intercom hiss

Postby redial » Tue Jul 14, 2015 8:23 pm

And here I was thinking that I had tinnitus (ringing in the ears) :!:


Len in Kapunda

The world is not going to finish today, as it is already tomorrow in Australia and New Zealand, and other islands of foreign nations such as Guam and Samoa.


Return to “Tech Talk”




Who is online

Users browsing this forum: No registered users and 2 guests