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Topic:
Total Remote and Sound
This thread has 6 replies. Displaying all posts.
Post 1 made on Thursday August 26, 2004 at 14:58
acampo
Lurking Member
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August 2004
2
Hi,

I just bought a HP4350 to use as a remote, and to get my e-mail around the house. The problem that I'm running into is that with the Total Remote IR piece plugged in, I don't get a notification sound when I receive new e-mail. This is a problem because I use e-mail for my business and I need to respond promptly.

So, when using as a remote, I don't find out I have e-mail until I look at the screen, and when not using as a remote, I have to unplug the IR piece, which is not an ideal situation as I will likely lose it before long.

Does anyone have a solution for getting sound to come out of the built-in speaker even while the IR piece is plugged in, or some other solution to this problem?

Thanks.
Post 2 made on Friday August 27, 2004 at 15:16
Don Stratton
Long Time Member
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December 2002
190
AFAIK, all PPCs (and most audio devices) use a physical switch inside the headphone connector to switch between headphones and the internal speaker. That means there is probably absolutely no way to play out of both ports simultaneously.


--Don
Post 3 made on Friday August 27, 2004 at 17:09
Dave Houston
RF Expert
Joined:
Posts:
October 2001
1,521
If you want to open up your PPC and risk voiding your warranty, shorting the switch contacts in the headset jack will give you both internal sound and output via the jack.

Whether the speaker load will cause problems for the TR dongle, I don't know.

You may find the rat-a-tat-tat sound of the codes more annoying than it is worth. The ~18kHz bursts sent to the dongle may also be annoying and may even do damage to the speaker. The unmodulated audio signals sent to the speaker might damage the TR dongle or even the PPC.

Bottom line, if both are important, buy a PPC that has eitheradequate internal IR or can use one of the CCF extenders.
OP | Post 4 made on Friday August 27, 2004 at 18:31
acampo
Lurking Member
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August 2004
2
Thanks for the information.

I should have thought of this before I spent the money, I supposed I'll have to make due.
Post 5 made on Tuesday August 31, 2004 at 13:11
Don Stratton
Long Time Member
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December 2002
190
On 08/27/04 21:09 ET, Dave Houston said...
The ~18kHz bursts
sent to the dongle may also be annoying and may
even do damage to the speaker. The unmodulated
audio signals sent to the speaker might damage
the TR dongle or even the PPC.

Neither are possible.

Just to clarify, there is NEVER any possible way that playing Total Remote infrared command tones on your internal speaker, at ANY volume level, could ever possibly hurt your PPC. Think it about it; the audio system can (assumedly) reproduce signals at full volume up to 20KHz. There is NO kind of audio signal that could hurt your audio system. Even if you played back a 25KHz or higher signal, it simply wouldn't reproduce.

Similarly, there is no kind of signal that come out of the audio port that could possibly hurt the Total Remote transmitter module. Playing some Britney Spears while the transmitter module is plugged in could not possibly result in anything other than very VERY occasionally spitting out a split-second of IR light that could conceivably "jam" a remote control if you happend to use it at the same split-second.

Dave, quit frightening my customers! We talked about this exact topic in E-mail quite a few months ago, and you agreed with me in principle at the time. ;)


--Don
Post 6 made on Tuesday August 31, 2004 at 16:08
Dave Houston
RF Expert
Joined:
Posts:
October 2001
1,521
On 08/31/04 17:11 ET, Don Stratton said...

Dave, quit frightening my customers! We talked
about this exact topic in E-mail quite a few months
ago, and you agreed with me in principle at the
time. ;)

We had no such discussion. We had one email exchange about an RF design but we never discussed anything about your IR device. I interpreted your interest the RF as nothing more than a fishing expedition but still gave you confidential information and even pointed you to documentation for CCF files when you posted here asking for help.

I suggest you get your facts straight before accusing me of saying something I've never said. I believe that's called libel.

Shorting the internal contacts as I suggested will (in addition to voiding the PDA warranty) put your output on the PDA speaker. Whether or not it will damage the speaker depends on the specifications of the speaker but I doubt many PDA designers would have anticipated a maximum volume signal at this frequency. Since I strongly recommended against doing it, it's hard to see how you could contend I'm frightening your customers.
Post 7 made on Tuesday August 31, 2004 at 16:32
Don Stratton
Long Time Member
Joined:
Posts:
December 2002
190
On 08/31/04 20:08 ET, Dave Houston said...
I suggest you get your facts straight before accusing
me of saying something I've never said. I believe
that's called libel.

Shorting the internal contacts as I suggested
will (in addition to voiding the PDA warranty)
put your output on the PDA speaker. Whether or
not it will damage the speaker depends on the
specifications of the speaker but I doubt many
PDA designers would have anticipated a maximum
volume signal at this frequency. Since I strongly
recommended against doing it, it's hard to see
how you could contend I'm frightening your customers.

Whoa, Dave. You have misinterpreted my meaning and intent, due I'm sure to my somewhat flippant and humorous writing style. I never meant to insult you, and I did not really have any concern about frightend customers. It was a joke and it was meant in a spirit of playful levity. That was what the winkie at the end was for; to try to remove any possible doubts about whether or not I was grimly serious.

I recently lost most of my business E-mail correspondence, so I was not too surprised when I looked for our E-mail exchange and was unable to find anything. I honestly thought you were the gentleman I had conversed with on this exact topic since you said exactly what he had said many months ago. It was wrong of me to attribute any quote to you without being absolutely certain of the quote, so again I apologize for the mistake.


--Don


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