[mythtv-users] analog and HDMI audio output

Sat Apr 11 03:41:18 UTC 2015

On Fri, Apr 10, 2015 at 10:30 PM, Hika van den Hoven <hikavdh at gmail.com>
wrote:

> Hoi Daryl,
>
> Saturday, April 11, 2015, 4:20:30 AM, you wrote:
>
> > Hoi Hika,
>
> > Saturday, April 11, 2015, 1:57:37 AM, you wrote:
>
> >> Hoi Daryl,
>
> >> Saturday, April 11, 2015, 1:50:10 AM, you wrote:
>
> >>> On Fri, Apr 10, 2015 at 7:33 PM, Hika van den Hoven <hikavdh at gmail.com
> >
> >>> wrote:
>
> >>>> Hoi Daryl,
> >>>>
> >>>> Saturday, April 11, 2015, 1:10:28 AM, you wrote:
> >>>>
> >>>> > On Fri, Apr 10, 2015 at 5:55 PM, Stephen P. Villano <
> >>>> > stephen.p.villano at gmail.com> wrote:
> >>>>
> >>>> >>
> >>>> >>
> >>>> >> On 4/10/15 1:03 PM, Alistair Grant wrote:
> >>>> >> > On Fri, Apr 10, 2015 at 6:24 PM, Hika van den Hoven <
> >>>> hikavdh at gmail.com>
> >>>> >> wrote:
> >>>> >> >> Interesting!
> >>>> >> >> I suddenly seem to remember there do exist true bluetooth
> keyboards.
> >>>> I
> >>>> >> >> don't know about mice. They are used in combination with
> tablets, but
> >>>> >> >> I guess they are more expensive. Within the bluetooth protocol
> you
> >>>> can
> >>>> >> >> connect several peripherals, so if you can find them, you
> should be
> >>>> >> >> able to connect all three trough the one dongle. I also now
> realize
> >>>> >> >> that that was the intention of your question ;)
> >>>> >> >> See: http://en.wikipedia.org/wiki/Bluetooth
> >>>> >> > On Fri, Apr 10, 2015 at 6:43 PM, Daryl McDonald <
> >>>> darylangela at gmail.com>
> >>>> >> wrote:
> >>>> >> >> What I'm considering is a  keyboard with a built-in trackpad,
> that is
> >>>> >> >> bluetooth, so back to the original question, it sounds like
> they can
> >>>> be
> >>>> >> >> configured simultaneously, so what I'd like clarification for is
> >>>> >> >> simultaneous use without interference? One would think that the
> same
> >>>> >> >> protocol would allow for such.
> >>>> >> >
> >>>> >> > The advantage of bluetooth keyboards / mice is that they don't
> need an
> >>>> >> > additional dongle - either built-in bluetooth, or a single
> bluetooth
> >>>> >> > dongle, can be used, and it will handle additional accessories.
> >>>> >> >
> >>>> >> > The disadvantage (if this still is the case, I haven't played
> with
> >>>> >> > modern BIOSes) is that the BIOS won't recognise the keyboard, so
> you
> >>>> >> > need to be able to boot without a keyboard, and have a spare if
> you
> >>>> >> > want to modify the BIOS settings.
> >>>> >> >
> >>>> >> > Also, at least for earlier devices, the dedicated RF dongle had a
> >>>> >> > slightly better range than bluetooth (once again, I don't have
> any
> >>>> >> > recent data).
> >>>> >> >
> >>>> >> > HTH,
> >>>> >> > Alistair
> >>>> >> > _______________________________________________
> >>>> >> >
> >>>> >> My 2007-2008 computer boots with no keyboard or mouse, but comes
> right
> >>>> >> up and works with my bluetooth keyboard/trackpad.
> >>>> >> _______________________________________________
> >>>> >> mythtv-users mailing list
> >>>> >> mythtv-users at mythtv.org
> >>>> >> http://lists.mythtv.org/mailman/listinfo/mythtv-users
> >>>> >> http://wiki.mythtv.org/Mailing_List_etiquette
> >>>> >> MythTV Forums: https://forum.mythtv.org
> >>>> >>
> >>>>
> >>>> > My set up is a tower, standard keyboard and mouse behind the roll
> top
> >>>> front
> >>>> > of an entertainment unit. Back in the day you could hide your 25"
> TV when
> >>>> > not watching it. My LG sits atop the unit and the heart of the
> system can
> >>>> > be hidden when company, or grandkids come over. Booting without a
> >>>> keyboard
> >>>> > becomes moot in this case. Since finding the disharmony between the
> radio
> >>>> > frequency ipazz keyboard/airmouse/IRremote and the bluetooth itek
> >>>> speaker,
> >>>> > (choppy sound) I'd like to know if anyone has experience with
> keyboard
> >>>> and
> >>>> > speaker over one bluetooth dongle? tests today prove myth will play
> sound
> >>>> > through the itek via bluetooth,satisfactorily for this factory ear,
> but
> >>>> > before an Amazon order goes in I'd appreciate some confirmation of
> >>>> > potential harmony with these two types of devices and bluetooth.
> >>>>
> >>>> If you read wikipedia, it has 79 channels, so every device will use
> >>>> it's own. It is very possible that any of the channels gets
> >>>> interference from other gadgets in the 2.4 GHz band, but knowing Linux
> >>>> you very probable can move your gadgets to another of the 79 channels.
> >>>> I know that in the beter wifi routers you can select the channel to
> >>>> use, based on an interference diagram it gives you.
> >>>> So if you experience interference, I'm almost certain it wil be
> >>>> solvable.
> >>>> Also since audio is one of the early uses of Bleutooth, I assume it's
> >>>> well developed to prevent and solve interference.
> >>>> Maybe you can already solve your problem by moving the speaker to
> >>>> another channel?
> >>>>
>
> >>> Hoi Hika, does it make a difference that none of this is going through
> my
> >>> router or modem? I'm running a combined FE/BE and have inserted dongles
> >>> into the towers usb ports for either radio frequency or bluetooth. If
> I can
> >>> get RF and BT to play nice with each other I'm all in.
>
> >> No, that's a different thing. It only shares with wifi, that it's
> >> radio waves, so the principle of selecting a channel within the
> >> frequency band. I only on occasion use bluetooth to synchronize my
> >> phone, so I'm not really up to speed in the details. I'm checking now
> >> what I can find.
>
>
> >> Tot mails,
> >>   Hika                            mailto:hikavdh at gmail.com
>
> > I did some further reading and I made a wrong assumption based on what
> > I know about wifi. bluetooth doesn't stay on one channel but hops over
> > the 79 channels at 1600 hops per second. The higher protocol versions
> > thereby prefer the channels with less interference. So normally
> > interference shouldn't be a problem. And as far as I can find the same
> > goes for the RF dongles. So one dongle in stead of two should be
> > better. Also I found that Bluetooth in general suffers more from
> > interference then the RF based mice and keyboards. Third I found that
> > a close by USB-3 cable often gives interference on Bluetooth. So if
> > your mouse/keyboard dongle was in a usb-3 port?? It could be it wasn't
> > the dongle but the usb.
>
> I was thinking. What happens to interference if you connect your
> bleutooth dongle through a cable, placing it about 1,5 m away from the
> computer and the RF dongle?
>
> Tot mails,
>   Hika                            mailto:hikavdh at gmail.com
>
> "Zonder hoop kun je niet leven
> Zonder leven is er geen hoop
> Het eeuwige dilemma
> Zeker als je hoop moet vernietigen om te kunnen overleven!"
>
> De lerende Mens
>
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> MythTV Forums: https://forum.mythtv.org
>

Hoi Hika, you genius never ceases to amaze me! With a 15m usb extension I
have found clear sound away from the clutter of the tower etal. Thank-you.
Now I just need to figure how to configure my asoundrc directory, but that
should be a new thread, I think.  Many thanks to all, this list rules!
Daryl
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