Hi, Dave: Yes, it does have to do with TRS terminations. Why is, of course, a business/philosophical question I can't answer. How is also something I can't describe off the top of my head, but I did find this web link:
https://www.reddit.com/r/headphones/comments/4bxjn8/whats_the_deal_with_ios_vs_android_inline_controls/ And yet more detailed info here, including some history of how we got here in these links: https://www.headphonesty.com/2019/04/headphone-jacks-plugs-explained/ https://www.provideocoalition.com/ts-trs-trrs-trrrs-combating-the-misconnection-epidemic/ And here possibly an even more clearly articulated explanation: http://wiki.robotz.com/index.php/TRRS_Phono_Plug This last article notes the existence of plugs that will remedy the problem our friend has experienced, i.e. swap the terminations--but one would need to find the appropriate converter plug. Personal note on this -- I first ran into this issue over a decade ago when I bought a Bose Quiet Comfort 3 noise cancelling headset. Many is the flight I took with those Bose playing no music, simply cancelling much of the jet engine noise while I tried to sleep. The Quiet Comfort came with two cables. One was for use with Apple devices, the other for use with PCs and Android. This is where I became experientially aware of the discrepencies. hth Janina Dave Carlson writes: > Janina > > Do you have any way to describe specifically why there are differences in > Apple’s implementation of the headphone jacks versus Windows and others? I > am guessing it’s in the electrical connection to the T-R-S contacts on the > jacks and plugs, correct? > In other words, why are they different? > > Dave Carlson > Woodworker, Oregonian, Pioneer, Musician, Engineer, and Farfar > > > On Nov 16, 2020, at 11:28 PM, 'Janina Sajka' via MacVisionaries > > <[email protected]> wrote: > > > > Janina > > -- > The following information is important for all members of the Mac Visionaries > list. > > If you have any questions or concerns about the running of this list, or if > you feel that a member's post is inappropriate, please contact the owners or > moderators directly rather than posting on the list itself. > > Your Mac Visionaries list moderator is Mark Taylor. You can reach mark at: > [email protected] and your owner is Cara Quinn - you can reach Cara at > [email protected] > > The archives for this list can be searched at: > http://www.mail-archive.com/[email protected]/ > --- > You received this message because you are subscribed to the Google Groups > "MacVisionaries" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/macvisionaries/B93D65AC-25ED-40C3-B3B6-E39F17F2C479%40gmail.com. -- Janina Sajka https://linkedin.com/in/jsajka Linux Foundation Fellow Executive Chair, Accessibility Workgroup: http://a11y.org The World Wide Web Consortium (W3C), Web Accessibility Initiative (WAI) Co-Chair, Accessible Platform Architectures http://www.w3.org/wai/apa -- The following information is important for all members of the Mac Visionaries list. If you have any questions or concerns about the running of this list, or if you feel that a member's post is inappropriate, please contact the owners or moderators directly rather than posting on the list itself. Your Mac Visionaries list moderator is Mark Taylor. You can reach mark at: [email protected] and your owner is Cara Quinn - you can reach Cara at [email protected] The archives for this list can be searched at: http://www.mail-archive.com/[email protected]/ --- You received this message because you are subscribed to the Google Groups "MacVisionaries" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/macvisionaries/20201118092922.GH2531%40rednote.net.
