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Noise-Cancelling Speakers: Who uses them?

Not to revive an old post, but I wanted to add my 2 cents....

I have one of the GAP Hear it speakers, such as the one in this link: HEAR IT Speaker - GAP Noise Canceling Speaker

What some have said is true....you can roll away all of the hiss of white noise, even with the squelch wide open.... which is nice.

However I do want to point out one thing I do not like....on mine you can roll away all the white noise, but then it makes people sound like they're talking underwater. Turn it off and you can understand them.

When no ones talking, it sounds kind of like droplets of water trickling into a large body of water. Not sure why.

So is it worth it? I think so, but they need to improve so there's no underwater sound going on.

Also on the speaker I have it gives you the option to plug another (bigger) speaker into it.
 
A very rough/simple way of explaining that popping or bubbling noise is that it's produced when the DSP circuit 'turns off' the speaker when an unwanted (defined) noise is encountered, then turns it back on when that noise is over. That's not a very accurate way of describing what's happening, but it's sort of 'close' and easy to understand. All that 'on/off' thingy is fast but still takes time and our ears can't keep up with it (which is good). It also means that while trying to 'filter out' noise during speech, that speech is going to be affected resulting in the 'garbled' sound. The only way I've ever found to get rid of the 'garble' is to decrease the amount of filtering being done. And naturally, that means having to put up with a little more noise.
The whole thing with DSP is defining what's noise and what's not. That's done by the use of algorithms. The more algorithms there are the longer it takes for that DSP to go through all of them to find out if what it's hearing is noise or not. The longer that 'list' of defined noises, the longer it takes, and will result in some distortion of the desired sounds. The faster that DSP thingy can do that sorting the more 'natural' things will sound. And the faster the sorting the more expensive it get's. You can see how that will go, and who can afford it??
- 'Doc
 
Not to revive an old post, but I wanted to add my 2 cents....

I have one of the GAP Hear it speakers, such as the one in this link: HEAR IT Speaker - GAP Noise Canceling Speaker

What some have said is true....you can roll away all of the hiss of white noise, even with the squelch wide open.... which is nice.

However I do want to point out one thing I do not like....on mine you can roll away all the white noise, but then it makes people sound like they're talking underwater. Turn it off and you can understand them.

When no ones talking, it sounds kind of like droplets of water trickling into a large body of water. Not sure why.

So is it worth it? I think so, but they need to improve so there's no underwater sound going on.

Also on the speaker I have it gives you the option to plug another (bigger) speaker into it.

Reminds me of the famous 'Galaxy GNF(Galaxy noise filter)' on my 959
 
1177AE10-EBE2-46CA-B44C-4A4D290E7926.jpeg
Uniden 885, RK56, and DSP Speaker in overhead console of a 579 Peterbilt

As I always enjoy looking through older threads, this one was revived again as I’ve lately been recommending to other drivers that a mobile DSP Speaker is “the missing ingredient”. Don’t leave home without it.

Given:

1). Fleet-spec Class 8 composite-body tractor.
2). No changes allowed to factory-supplied coax or power leads.
3). The use of factory antenna mount.
4). Must install in provided location (small case radio), usually in overhead console.

Thus: THE START-UP CB RIG THAT WORKS IN ANY BIG TRUCK

A). A Uniden 880/980 radio ($120)

B). An RM Italy KL203 amp (size of a cigarette pack; 70-100W; $75)

C). Change to American-made top load SKIPSHOOTER antennas to get near 13’5” height (Pair $60)

And:

D). Add the WEST MOUNTAIN CLRSPKR (or BHI Mobile) Digital Signal Processing speaker to complement the little amp ($225).

Heard, and you shall Receive. Hay-soose can’t answer that prayer if he can’t hear it. And heaven (or Guadalajara) is a long ways away. Sabe?

While the overall $500 cost of the above isn’t the figure most drivers perceive as “the cost of a CB”, it sure beats making a turn onto Super Whack Pack Road for a guy who wants better performance, but is hampered by truck companies (understandably) wanting to avoid problems with these highly computerized vehicles thus their issuance of modification bans.

Don’t touch any of these. Not for now. Install, set SWR and go.

These trucks are noisy. Not just the sounds from operation at speed. Add the inverters, refrigerator compressors, electronics chargers, etc, prevalent nowadays and, IMO, one needs to Build The Wall. Keep those noisy, pesky critters out.

Now, with the DSP Speaker a radio transmission doesn’t need to move the meter for me to pick it up. Didn’t know some stuff was out there. Some even say you can pick up that moving mystery cult down south of the San Luis Valley.

And though these devices may not kill all the noise, noise is modified enough (so to speak) that I can hear around it.

I keep my Garmin Dezl 760 GPS moving map updated annually. Was into & out of Atlanta from the west with both construction & wrecks on arrival and at next day’s departure. This made leaving either IH20 or IH285 to get to the other desirable. Versus losing up to an hour. Maybe more.

The GPS routed me around. But in a big truck (especially when loaded) alternate routing can backfire. I’d like confirmation. Boy, does this tool do that!

I was able both times to get ahold of locals to check that I’d be alright. Worked well. Partly because next to no other drivers used those routes. (I guess no map updates, or just resigned to sitting).

Given that there are regional speech dialect differences, plus the tendency for folks to speak too quickly, and other potential problems, the DSP speakers break up the logjam (Ha, take that!). No drop-off of half a sentence as we haul tail. Info request supplied in full.

Saturday morning I was routed three miles north from IH20 onto old US-78. Had to run more about 25 miles. A few stoplights. No big trucks. Thirty minutes for me. Well over an hour for some of them I heard.

Do the math. If this happens even once every six weeks, consider income loss, morale (which is momentum) and timely delivery. Fuel burn. Extended idle. Etc. Its a long damn list for which brokers, shippers, receivers and your dispatcher will have penalized you. Maybe even bye bye that quarters fuel bonus. This’ll pay for itself, is the point.

As to aftermarket speakers I’ve no complaints about the Cobra 500 and Uniden BC20 I’ve used. Those are better than the speaker built into the radio, or the speaker built into the truck. Worth the small cost.

But the DSP speaker is from another universe.

You’ll know about that road problem ahead before most anyone around you. The infamous unannounced rolling road crew that has a major three lane Interstate down to one lane and a fast growing backup. Will be miles deep in minutes. You can pull over and put experience and an Atlas to work on whether alternate routing is a good idea (“No, alls good, driver. Thanks for checking. Just pulled off on shoulder to change routing. DOT is on the side roads and is running them over the portable scales”. [Sow confusion. Keep the alternate fast & clear] ).

I bought mine four years ago when running the oilfield. Had an overall outstanding rig in a large car. Remote areas of Texas, New Mexico and Oklahoma. Impressive distances to hear, and to transmit. I’ve got about 200k miles on it now, and not just baby-butt smooth Interstate.

Sure, there may be no end to trying to clean up noise from all the possible sources. Fairly enjoyable to try. I’ve had real success there. Same for all other details pertaining. Only improves radio performance as we all know (as now the speaker will clarify transmissions from Aldebaran).

On the 15A factory binding post pair I can run the (stock) radio, DSP speaker and KL203. (I had Rays CB replace the KL203 power wiring with a heavier gauge and mate it to the CB power line with a quick disconnect).

Got that? A 100W foot warmer on a digital radio with custom digital filtration. Run off the factory’s dirty, low-power connection.

Give that pair of cattle haulers a few miles behind you and coming up some bull rap about their Connex radio and StarRay antenna. Too much echo and mike gain. All of it from Bobby Lee’s Chevy Astro Van CB Emporium.

Ha! Now CR England or Swift has better ears. Gets out farther. (“Speak up, Hand. No, I bought mine off Amazon and just stuck it in here. Sound okay?”).

Procedure:

1). Velcro the amp to the radio.
2). Find a place to Velcro the speaker.
3). Install longer antenna(s).
4). Make up a power harness from a Wilson HD with soldered ends to fit into binding posts. Join all power leads into it behind the fuse.

Done.

Turn her over and grab a gear. The other details of noise abatement will wait till you get to them.

.
 
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Kenwood SP-230 with a RS DSP-40 in it . Hid a clean , linear 13.8V supply in it as well.Cheap , effective , matches the TS-830.
 
I own & use several ClearSpeech DSP Base Modules & a ClearSpeech DSP Speaker & I use them on every radio I use with AM or SSB because they are Awesome at removing noise.I have also used & owned the GAP/BHI models & they work great as well but I prefer the ClearSpeech models.I had a HEIL DSP Speaker as well but it was far from impressive & even Bob Heil himself did not want into a discussion about it and we are friends.Obvious why he parted ways with that adventure.I can't imagine going back to operating without these filters & I find them so good that I even use one on my ICOM 7600 & it makes it better as well & it is already great.

SIX-SHOOTER
 
I own & use several ClearSpeech DSP Base Modules & a ClearSpeech DSP Speaker & I use them on every radio I use with AM or SSB because they are Awesome at removing noise.I have also used & owned the GAP/BHI models & they work great as well but I prefer the ClearSpeech models.I had a HEIL DSP Speaker as well but it was far from impressive & even Bob Heil himself did not want into a discussion about it and we are friends.Obvious why he parted ways with that adventure.I can't imagine going back to operating without these filters & I find them so good that I even use one on my ICOM 7600 & it makes it better as well & it is already great.

SIX-SHOOTER

It was your earlier comment of the same made me realize I feel the same way. Thx. Time for me to ante up, as I’ve been using one for years. No point to a mobile unit without one, is also my opinion.

HAM quality equipment for the truck driving business tool, the lowly CB. But one that as a friend of mine likes to say: “Buy one. Try it. You won’t want your money back”.

Now, if only it featured Nitro Knobs for those 0330 starts. Think the boys at West Mountain will go for that? (Ha!).

Note: I’ve gone back and edited that long post for clarity.

.
 
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This is an old thread but … how does the West Mountain Radio Clear Speaker perform on AM? I have read some article that SSB seems to fair better on SSB vs AM. Thanks
Good old threads never die…

I use the West mountain spkr. The DSP noise reduction is smoother and more effective at low settings than my Icom 7000.

Whether SSB or AM, it'll take out or reduce the white noise during receive. At high settings, it'll eliminate it all but the audio will sound watery.

The audio quality may not be HI-FI if that's what you're looking for. I use it for a mobile rig because the audio amp can get loud which I need inside a semi truck. It is voice quality audio and it's very good at that.

I tried the Gap speaker but the overall volume wasn't good enough for a mobile environment.

You can get just the audio amp version with DSP and plug in your favorite speaker.
 
Good old threads never die…

I use the West mountain spkr. The DSP noise reduction is smoother and more effective at low settings than my Icom 7000.

Whether SSB or AM, it'll take out or reduce the white noise during receive. At high settings, it'll eliminate it all but the audio will sound watery.

The audio quality may not be HI-FI if that's what you're looking for. I use it for a mobile rig because the audio amp can get loud which I need inside a semi truck. It is voice quality audio and it's very good at that.

I tried the Gap speaker but the overall volume wasn't good enough for a mobile environment.

You can get just the audio amp version with DSP and plug in your favorite speaker.


Thanks … I am looking at Mobile use …
 
I use a Cobra High Gear S-300. It's a mobile 4" speaker, I use on my base. It has a great sound, and cuts out about 75% of the noise when the button is pushed. Four years ago I paid around $35.00 for it on ebay. [photo=large]5382[/photo][photo=large]5379[/photo]

Nice setup. (y)
 

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