There are two different ways that phone mic/earbuds are wired to a TRRS plug. All Apple products should be wired the same way. The two standards are AHJ/CTIA and OMTP. Most modern phones use the AHJ/CTIA spec. See: https://help.longtailproducts.com/hc/en-us/articles/207970396-Smartphone-Headset-Standards-Apple-iPhone-AHJ-CTIA-OMTP
A clever way to adjust compression is to use the two voice memories and play back different settings to compare them. Turn the power down to zero first! That was a suggestion from Lyle, KK7P. Also, it is probably best to set TX EQ before setting compression, because the frequency content of your voice will probably interact with the compressor. I compiled audio setup steps gleaned from this list in a blog post. https://observer.wunderwood.org/2015/09/09/transmit-audio-and-compression-with-the-elecraft-kx3/ wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Jul 2, 2018, at 5:23 PM, Wayne Burdick <[email protected]> wrote: > > >> On Jul 2, 2018, at 5:20 PM, Phil Hystad <[email protected]> wrote: >> >> Do you recommend speech >> compression set to max or was that just a test of audio quality check. > > I generally leave TX CMP at 20, but even at 30, the audio is very clean. The > extra punch can help with QRP and/or small antennas. > > >> >> I still have all my iPhone headsets from my original iPhone 1 through my >> current 6s. Actually, >> still have all those iPhones too. I may test each one to see how they work >> — now, I need to >> find them all though. Just ordered the Y-adapter cable from Amazon. > > Just be sure to listen to your signal on another receiver (well attenuated) > before going on the air. > > 73, > Wayne > N6KR > > >> >> 73, phil, K7PEH >> >>> On Jul 2, 2018, at 5:09 PM, Wayne Burdick <[email protected]> wrote: >>> >>> Several KX2/KX3 users have asked what I use as an adapter to go from an >>> iPhone headset to the rig’s headphone and mic jacks. >>> >>> Here it is: >>> >>> https://www.amazon.com/gp/product/B00PYZ2BT4/ref=oh_aui_bia_detailpage_o02_s00?ie=UTF8&psc=1 >>> >>> This unit works beautifully with both my old and new iPhone headsets. The >>> combination of the headset and this adapter take a tiny amount of space in >>> my go-bag. Audio reports are great, even with speech compression set to max >>> (MENU:TX CMP). >>> >>> You’ll need to set MENU:MIC BIAS to ON, and I also recommend setting MIC >>> BTN to OFF. >>> >>> You can tap the XMIT button to start voice-mode transmit, or use VOX. See >>> VOX menu entries in the owner’s manual. >>> >>> Note: There’s a rumor that one legacy version of the iPhone headset was >>> different from the others. I don’t have any info on this, but it means >>> there’s a slight risk that this $6 adapter won’t work in your case. But it >>> certainly works with the earpods I bought a couple of months ago. >>> >>> 73, >>> Wayne >>> N6KR >>> >>> >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:[email protected] >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to [email protected] >> > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [email protected] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
