Dec 15, 2008 10:21 pm The headphone jack is probably not sending a line level signal that the TV can use.
Does the laptop have an onboard mic that might be picking up the TV speakers and playing the audio again?
strong echo, on audio output to tv
Posted on Dec 15, 2008 09:04 pm
R09Edirol
Member Since: Dec 12, 2008
hi
I connect my laptop's headphone out jack to my TV so I can listen to sound on bigger speakers, via a standard computer audio jack -> rca convertor wire. However, the sound I hear on the tv has a strong echo and a high frequency cutoff associated with it; I can only hear the background music and no voice (or barely). Whats wrong with this?
thanks
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Dec 15, 2008 10:21 pm The headphone jack is probably not sending a line level signal that the TV can use.
Does the laptop have an onboard mic that might be picking up the TV speakers and playing the audio again?
Dec 15, 2008 10:39 pm Sounds like a summing issue - Are you using the proper cable?
That would be, a 1/8" TRS insert to RCA (stereo to split L/R mono).
Dec 16, 2008 07:37 pm yes I am using a 1/8 in TRS to RCA stereo to split L/R mono
the microphone is muted
what else can I try?
headphones work fine on this laptop
Dec 16, 2008 09:53 pm My son will be home tomorrow. I'm gonna hook his lappy up to the TV and see what happens. I'm kinda stumped here as to what might be doing that.
Dec 18, 2008 10:02 pm Worked fine here with a Toshiba Satalite using the front inputs of the TV. I'll see if I can force it to echo a little later.
Dec 19, 2008 09:24 am If you can listen via headphones, then I'd remove the PC from the equation. Also, I'd remove the cable from the equation, as i'd highly doubt a cable will induce echo.
So that leaves your TV. There may some sort of routing thing (never seen one that would, but who knows).
What may (strong emphasis on 'may') be happening, is the signal is being sent way too hot, as headphone is not LINE level signal. The TV may be squashing it with auto gain, or some type of compression.
Maybe turn the headphone output way down, and use volume on the TV. That's the way you should be doing it anyway, if you're not already.
Try another line level or headphone device, like mp3 player, or cd player. Just keep the source output down low, so you don't fry your LINE level input on the TV.
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