[mythtv-users] analog and HDMI audio output

Sat Apr 11 04:33:18 UTC 2015


On 4/11/15 12:28 AM, Hika van den Hoven wrote:
> Hoi Daryl,
>
> Saturday, April 11, 2015, 5:41:18 AM, you wrote:
>
>> 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
>>>
>> 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
> Great! Always happy to be of service.
> It's just that I'm good at associative analytical thinking, seeing
> links and connection others sometimes miss. Plus I'm almost 100%
> autodidactic without a mold pressed on by a teacher, preventing a lot
> of others from looking outside the common ways. And I hate not
> understanding. Problems only exist to get solved!
>
> 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
>
> _______________________________________________
>
A worthy method, when properly admixtured as required.
I initiate in didactic mode, when general proficiency exists, I switch
to socratic.
One the topic is generally comprehended to relative proficiency,
socratic methods require the student to learn to excel as an expert in a
complex field.  :)
I'd have helped myself, but my time is extremely heavily divided of late. :(