What is your experience with the K3's AFX?
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What is your experience with the K3's AFX?
 
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I have been amazed and fascinated at the AFX button feature on the K3 and how much it adds to listening. I have been reading about the effects feature with the AFX button. The QST 1999 article can be found here: http://ok1ike.c-a-v.com/soubory/binaural_IQ_RX.pdf I am sure it can be found other places too, but that was the first Google hit. What have your experience been with the AFX feature? Do you like the "stereo" with the delay from 5-1...or...do you like the Binaural IQ sound? How do any of them offer something in receiving comfort? What are your preferences? I think this is an interesting discussion. Lee - K0Wa In our day and age it seems that Common Sense is in short supply. If you don't have any Common Sense - get some Common Sense and use it. If you can't find any Common Sense, ask for help from somebody who has some Common Sense. Is Common Sense divine? _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
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I have recently begun experimenting with my K3's AFX feature. My understanding
is that AFX is supposed to spread cw signals across a virtual listening space in front of the operator (distributed according to pitch?). My experience, listening with stereo headphones and with AFX on, is that all of the sound seems to come from one side and slightly to the rear. With AFX off I hear a balanced sound from the headphones that seems to be in the center of my head. This is not what I expected. What am I doing wrong? 73, john, no8v _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
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John, that sounds like what I have experienced with AFX:BIN. Perhaps
we need to use the stereo output on the rear of the K3 for the real effect. AFX:DELAY5, on the other hand, does seem to lay out signals in a virtualized manner, spatially separated in front of the listener. In my experience, however, this "effect" takes time to materialze, for me, it was a number of hours in the seat before it happened. Don't get me wrong, AFX:DELAY5 is very comfortable to listen to, but the "virtual spatialization" seemed to take a while to happen (for me, anyway). I wonder what other people experience in terms of time before they notice the spatial separation? Jeff N6GQ On Mon, Jun 23, 2008 at 3:04 PM, John H Gibson <[hidden email]> wrote: > I have recently begun experimenting with my K3's AFX feature. My understanding > is that AFX is supposed to spread cw signals across a virtual listening space in > front of the operator (distributed according to pitch?). My experience, listening > with stereo headphones and with AFX on, is that all of the sound seems to come > from one side and slightly to the rear. With AFX off I hear a balanced sound from > the headphones that seems to be in the center of my head. > > This is not what I expected. What am I doing wrong? > > 73, > john, no8v > _______________________________________________ > Elecraft mailing list > Post to: [hidden email] > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com > > Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
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>> I have recently begun experimenting with my K3's AFX feature...
>> This is not what I expected. What am I doing wrong? The K3 does not provide a "space based on pitch" which is apparently what you were expecting. That effect is on the list of things to consider for the future. BIN provides a fixed phase shift between the two channels. DLY provides a fixed (but user selectable) time delay between the two channels. I use DLY 3. Wayne prefers DLY 5. This is *all* what we call psychoacoustics, mainly because we like to use 5 syllable words to impress :-) Different listeners react in different ways to these settings. There is no correct one; use what you prefer, including OFF. 73, Lyle KK7P _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
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I could swear that the audio was louder from the left speaker than from the
right with AFX turned on so I got out my trusty DB meter and measured each one. They are identical. I think this is caused by speaker location. Steve Ellington [hidden email] ----- Original Message ----- From: "Lyle Johnson" <[hidden email]> To: "Jeff Kinzli N6GQ" <[hidden email]> Cc: "Elecraft Reflector" <[hidden email]> Sent: Monday, June 23, 2008 7:41 PM Subject: Re: [Elecraft] [K3] AFX operation >>> I have recently begun experimenting with my K3's AFX feature... >>> This is not what I expected. What am I doing wrong? > > The K3 does not provide a "space based on pitch" which is apparently > what you were expecting. That effect is on the list of things to > consider for the future. > > BIN provides a fixed phase shift between the two channels. > > DLY provides a fixed (but user selectable) time delay between the two > channels. I use DLY 3. Wayne prefers DLY 5. > > This is *all* what we call psychoacoustics, mainly because we like to > use 5 syllable words to impress :-) Different listeners react in > different ways to these settings. There is no correct one; use what you > prefer, including OFF. > > 73, > > Lyle KK7P > > _______________________________________________ > Elecraft mailing list > Post to: [hidden email] > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com -------------------------------------------------------------------------------- No virus found in this incoming message. Checked by AVG. Version: 8.0.100 / Virus Database: 270.4.1/1515 - Release Date: 6/23/2008 7:16 PM _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
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In reply to this post by k0wa@swbell.net
I would like to hear what anybody that wears hearing aids thinks of AFX. I usually take at least one of my aids out since it tends to squeal under a headphone and that means having to turn the audio way up. I'm looking forward to trying AFX when my K3 arrives hoping it can help an old deaf guy.
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On Mon, 23 Jun 2008 19:12:11 -0700 (PDT), nz0t <[hidden email]> wrote:
> >I would like to hear what anybody that wears hearing aids thinks of AFX. I >usually take at least one of my aids out since it tends to squeal under a >headphone and that means having to turn the audio way up. I'm looking >forward to trying AFX when my K3 arrives hoping it can help an old deaf guy. > One deaf old geezer to another, I like AFX very much. I have the Oticon Synchro devices and these have four selectable settings. I work CW all the time, so I asked the audiologist to set the fourth setting to peak each ear at 500hz. It works great for CW! When listening to SSB that has a steady carrier QRM I will get just a little squeal. When that happens I just remove the hearing aides and put the head phones back on. The audiologist gave me the answer to the cause of the squealing by saying that they cannot fit this type of hearing aids for piano tuners, because the hearing aids will squeal when hearing a pure steady sine wave as you would hear on SSB with a carrier in the background. It all boils down to one thing (said tongue in cheek). It's Elecraft's fault for making such a good RX and the good sine wave audio it produces. Seriously though, I was just thinking about our situation a couple of days ago and decided that I really don't need the hearing devices when using the RX, since my hearing loss is in the parts of speech that effect the hearing of F's S's and the other hi pitched parts of sp each, so I tried not using the hearing aids when using the K3 for a couple of days. I found that as I suspected, that due to the way SSB is filtered to reduce bandwidth, the spectrum in which my hearing loss lies isn't produced by SSB RX's anyway. Next time I go to the audiologist I'm going to ask her to give me a graph of my hearing loss and see what adjusting the RX Equalizer to compensate will do for me. Maybe you could try the same thing. Tom, N5GE - SWOT 3537 - Grid EM12jq "Those who would give up Essential Liberty to purchase a little Temporary Safety deserve neither Liberty nor Safety" An excerpt from a letter written in 1755 from the Assembly to the Governor of Pennsylvania. Support the entire Constitution, not just the parts you like. http://www.n5ge.com http://www.eQSL.cc/Member.cfm?N5GE _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
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Re: What is your experience with the K3's AFX?
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In reply to this post by NZ0T
As far as I am concerned, headphones and hearing aids do not mix.
My hearing loss problems may be a bit unique in that I have normal hearing in the low frequency range (up to about 1800 Hz), so my ears without the aids act as good low pass filters. That is great for CW, but not so good for speech recognition on SSB. For those times when I must use headphones, I remove the aids - but I have purchased a pair of good quality computer speakers which are placed about 3 feet from either ear and firing toward my head. With the speakers in use, I can enjoy features such as AFX while wearing the aids. I cannot vouch for AFX in CW mode, but I can say that using AFX MD delay = 2 in SSB creates a nice full sound for me - other settings seem to annoy me, but as Lyle has pointed out, each user will have a different perception, so YMMV. BTW, my hearing aids have 3 stages of noise reduction available. I normally use the setting with no reduction in the aids ('music' setting) which just compensates for my frequency loss. I only use the noise reduction capability when I get into a crowd situation (crowded restaurant), and then I use the algorithm that works best for speech recognition in noise. Again, your situation may be different. For me, the speakers work best, but then, I have a tolerant spouse. 73, Don W3FPR nz0t wrote: > I would like to hear what anybody that wears hearing aids thinks of AFX. I > usually take at least one of my aids out since it tends to squeal under a > headphone and that means having to turn the audio way up. I'm looking > forward to trying AFX when my K3 arrives hoping it can help an old deaf guy. > > _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
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In reply to this post by KK7P
Hi Lyle,
Thank you for your explanation of how AFX works; I now better understand how AFX currently behaves. While listening to cw, I find that increasing DELAY shifts the apparent source of a cw signal further to the left, which makes me believe that AFX delays the right stereo channel. AFX does provide a nice spatial sense of the sound (albeit with sound sources shifted to the left of center). I know that your plate is full right now, but I was pleased to hear that you are thinking of a a future AFX with that spatially locates a sound source based on its pitch. Best Regard and 73, John, no8v ---- Original message ---- >Date: Mon, 23 Jun 2008 16:41:39 -0700 >From: Lyle Johnson <[hidden email]> >Subject: Re: [Elecraft] [K3] AFX operation >To: Jeff Kinzli N6GQ <[hidden email]> >Cc: [hidden email], Elecraft Reflector <[hidden email]> > >>> I have recently begun experimenting with my K3's AFX feature... >>> This is not what I expected. What am I doing wrong? > >The K3 does not provide a "space based on pitch" which is apparently >what you were expecting. That effect is on the list of things to >consider for the future. > >BIN provides a fixed phase shift between the two channels. > >DLY provides a fixed (but user selectable) time delay between the two >channels. I use DLY 3. Wayne prefers DLY 5. > >This is *all* what we call psychoacoustics, mainly because we like to >use 5 syllable words to impress :-) Different listeners react in >different ways to these settings. There is no correct one; use what you >prefer, including OFF. > >73, > >Lyle KK7P > Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
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