Exactly. And, it could be as stunning as 48Khz sampling, though probably still 16bit.
Now when it gets that good, and the technology is in place to add high def video to the equation, why are we still making mono connections over audio? Where's my stereo phone? Heck, where's my Dolby Atmos phone connection! <grin> Janina 'Chris Blouch' via MacVisionaries writes: > Makes sense. So in the case where I'm calling from iPhone 6 to iPhone 6 on > Verizon, the gating factor sounds like whether we're both on LTE at that > moment in time. When it works, the audio quality is startling. > > CB > > On 4/21/17 11:27 AM, Scott Granados wrote: > > I had a nice long detailed message for Chris on this topic and I crashed my > > mail program. > > > > You’re exactly right. To get more specific to his questions. Why does it > > work sometimes and not others. Being a verizon user I can speak directly > > to this because you’re using the network I helped build. When I talk of my > > time at verizon it was working on the very thing you’re asking about among > > others. SO here’s the drill as Janina correctly stated there are all > > different codecs that support different qualities. The old phone network > > used 8KHz or 64K channels. (56K of payload and 8 K of framing for old > > networks advanced to 64K channels with only 8 K of framing for every 24 > > combined channels and so forth. More recently everything on the phone > > networks are moving to data networks with IP backbones. This means you > > don’t have fixed channel sizes any more and you can use more data per call > > and we do. As mentioned there are really clean high bandwidth audio > > specifications but the one we use tries to find a balance between bandwidth > > usage and quality. > > In verizon’s case, only LTE supports this new standard. When you’re on > > 3G with Verizon and you place a call your 3G session disconnects and you > > establish an old 1X voice only channel. This channel supports at most > > about 128K which means you have enough head room for one 3 way call > > initiated form the handset. When you’re on LTE and Voice over LTE is > > enabled you can leave the LTE channel up and use that facility with a lot > > more bandwidth to carry the call. This means we can have calls with 128, > > 384, 1024 and more K bandwidth. Video calling is also included in the > > VOLTE spec so it’s possible to send voice and data natively through the > > phone network not using FaceTime or Skype or some other third party > > software. > > Why does it work sometimes and not others? Could be several things. > > In your case you need to both be on LTE if you’re placing a verizon to > > verizon call. If you’re calling another network you your self need to be > > on LTE and the far end carrier needs to not only support HD calling but > > needs to exchange HD calls with Verizon. T-Mobile does this as an example > > so if you called a T-Mobile customer and you’re on LTE you should get this > > quality audio. > > Does it work between brands of phones? Yes, this is an open standard > > so Android devices can talk to iPhones and both can talk to Microsoft > > phones if the wide band calling is enabled on all accounts involved and all > > devices are on the appropriate networks for HD calling. > > > > Let me know if I can expand on anything further or if I’ve just confused > > things. Glad to provide more info if needed. > > > > Thank you > > > > > > > > > On Apr 21, 2017, at 11:13 AM, 'Janina Sajka' via MacVisionaries > > > <macvisionaries@googlegroups.com> wrote: > > > > > > Chris: > > > > > > The old computer adage, "gigo" applies in answer to your question. > > > > > > There are multiple codecs that can be used for telephony. Even the major > > > carriers have started using a higher quality codec when the equipment > > > supports it. You'll see this advertised as "HD Voice," by T-Mobile, for > > > instance. > > > > > > The truth is that even "HD Voice" isn't the best available to be used, > > > but both ends of the call have to support the same codec (or better). > > > Else, down sampling and the resulting poorer quality results. > > > > > > Like the adage says: garbage in, garbage out. And conversley, quality in > > > and maybe quality out. > > > > > > hth > > > > > > Janina > > > > > > 'Chris Blouch' via MacVisionaries writes: > > > > I had always wondered what it was when I would call some people on my > > > > iPhone > > > > 6 and get surprisingly nice audio while other times it was just OK. So > > > > what > > > > triggers the good audio? My wife and I have the same iPhone 6 on > > > > Verizon and > > > > sometimes we get that amazing sound quality and sometimes it sounds just > > > > like a regular cell phone. Does it depend on which tower you're > > > > connected to > > > > or whether you're on LTE or not? A friend of mine is on Android and > > > > sometimes I get really good quality calls with him as well, so it > > > > doesn't > > > > seem to be an iPhone-specific thing. > > > > > > > > CB > > > > > > > > On 4/20/17 4:31 PM, Scott Granados wrote: > > > > > Cait, yes they do. I worked for a long time for Fidelity Investments > > > > > where we built a custom video and audio conferencing system. It > > > > > replaced the one Verizon offers. We actually took great care to have > > > > > good quality audio along with fantastic video. We supported from > > > > > standard definition video up to 4K 30 FPS non drop and on the audio > > > > > side everything was G722 wide band so you’d get audio quality better > > > > > than Skype calls in most settings. On the phone side we supported > > > > > G711 and G722 which means you either got something as good as a > > > > > standard phone call or if your phone supported it like many cell > > > > > phones do we would go wide band so again you’d get that nice crisp > > > > > full audio. > > > > > The users liked it so much they scrapped the audio only > > > > > conferencing service and before we knew it we had 5+ million minutes > > > > > of business per week. We’d support thousands of parallel calls and > > > > > were able to maintain crisp audio so the other guys can if they want > > > > > to expend the effort and use the extra bandwidth. > > > > > > > > > > > > > > > > On Apr 20, 2017, at 4:14 PM, Caitlyn Furness > > > > > > <caitlyn.furn...@gmail.com> wrote: > > > > > > > > > > > > Lots of these webinar things have bad sound quality-and the more > > > > > > you have on the lines, etc, the worse it seems to be!! Wonder if > > > > > > sighted people think the quality is as bad as most of us probably > > > > > > do?! > > > > > > > > > > > > Cait > > > > > > > > > > > > > On Apr 20, 2017, at 12:25 PM, Karen Lewellen > > > > > > > <klewel...@shellworld.net> wrote: > > > > > > > > > > > > > > I will add that zoom allows you to give participant's a call in > > > > > > > number instead, a fine option for those ho prefer attending > > > > > > > without video at all. > > > > > > > Granted as is often the case when the audio is video based, the > > > > > > > quality is sort of nose crinkle worthy, but at least the door > > > > > > > for phone alone is there. > > > > > > > Karen > > > > > > > > > > > > > > On Thu, 20 Apr 2017, Kliphton Miller wrote: > > > > > > > > > > > > > > > I HAVE BEEN USING ZOOM FOR ABOUT A YEAR, IT IS MOSTLY > > > > > > > > ACCESSIBLE, JUST THAT SOME OPTIONS THAT ARE available to the > > > > > > > > sited user, vo doesn’t read during a conference, but it’s not a > > > > > > > > deal breaker. > > > > > > > > > On Apr 20, 2017, at 6:06 AM, Alex Hall <mehg...@icloud.com> > > > > > > > > > wrote: > > > > > > > > > > > > > > > > > > Hi all, > > > > > > > > > I saw on Twitter yesterday that a new web conferencing > > > > > > > > > service was discovered recently: www.zoom.us > > > > > > > > > <http://www.zoom.us/>. The big news here is that they have an > > > > > > > > > accessibility website (https://zoom.us/accessibility > > > > > > > > > <https://zoom.us/accessibility>), an email address > > > > > > > > > (acc...@zoom.us <mailto:acc...@zoom.us>), and a commitment to > > > > > > > > > keeping their product accessible. They claim compatibility > > > > > > > > > with VoiceOver, Talkback, and NVDA, covering all the major > > > > > > > > > platforms. > > > > > > > > > > > > > > > > > > I haven't tried the service at all, and am going off only > > > > > > > > > what I read on their website and in the article that pointed > > > > > > > > > me to them in the first place. However, things look good. If > > > > > > > > > you're in need of this kine of service and you try Zoom, I'd > > > > > > > > > love to hear what you thought of the experience. > > > > > > > > > > > > > > > > > > I haven't been following the Citrix thread, so I apologize if > > > > > > > > > this was already brought up over there. > > > > > > > > > > > > > > > > > > -- > > > > > > > > > Alex Hall > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > -- > > > > > > > > > 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. 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You can reach mark > > > > at: macvisionaries+modera...@googlegroups.com and your owner is Cara > > > > Quinn - you can reach Cara at caraqu...@caraquinn.com > > > > > > > > The archives for this list can be searched at: > > > > http://www.mail-archive.com/macvisionaries@googlegroups.com/ > > > > --- 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 macvisionaries+unsubscr...@googlegroups.com. > > > > To post to this group, send email to macvisionaries@googlegroups.com. > > > > Visit this group at https://groups.google.com/group/macvisionaries. > > > > For more options, visit https://groups.google.com/d/optout. > > > -- > > > > > > Janina Sajka, Phone: +1.443.300.2200 > > > sip:jan...@asterisk.rednote.net > > > Email: jan...@rednote.net > > > > > > Linux Foundation Fellow > > > Executive Chair, Accessibility Workgroup: http://a11y.org > > > > > > The World Wide Web Consortium (W3C), Web Accessibility Initiative (WAI) > > > 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. 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You can reach mark at: > macvisionaries+modera...@googlegroups.com and your owner is Cara Quinn - you > can reach Cara at caraqu...@caraquinn.com > > The archives for this list can be searched at: > http://www.mail-archive.com/macvisionaries@googlegroups.com/ > --- 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 macvisionaries+unsubscr...@googlegroups.com. > To post to this group, send email to macvisionaries@googlegroups.com. > Visit this group at https://groups.google.com/group/macvisionaries. > For more options, visit https://groups.google.com/d/optout. -- Janina Sajka, Phone: +1.443.300.2200 sip:jan...@asterisk.rednote.net Email: jan...@rednote.net Linux Foundation Fellow Executive Chair, Accessibility Workgroup: http://a11y.org The World Wide Web Consortium (W3C), Web Accessibility Initiative (WAI) 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: macvisionaries+modera...@googlegroups.com and your owner is Cara Quinn - you can reach Cara at caraqu...@caraquinn.com The archives for this list can be searched at: http://www.mail-archive.com/macvisionaries@googlegroups.com/ --- 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 macvisionaries+unsubscr...@googlegroups.com. To post to this group, send email to macvisionaries@googlegroups.com. Visit this group at https://groups.google.com/group/macvisionaries. For more options, visit https://groups.google.com/d/optout.
