| Electronics > Projects, Designs, and Technical Stuff |
| Trying to connect speakers to a LED TV with no audio output |
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| tggzzz:
--- Quote from: joshhunsaker on October 06, 2014, 06:55:24 am ---http://www.ebay.com/itm/10pcs-Mini-2-Pin-53-54-DB-9-7mm-6-7mm-Electret-Microphone-Spy-Condenser-Pickup-/360811259690 + http://freecircuitdiagram.com/2010/11/15/op-amp-microphone-pre-amp/ Use both channels of the TL082 for stereo and add the bias voltage as described in that circuit write-up (required for electrets). Use a 9v to power the preamp. Patch your stereo audio out to a typical amplifier/receiver. Being that TL082s and those electrets are dirt-cheap, your total project cost should be close to nothing. Those mics provide very surprising audio quality. I've used literally dozens of them in projects. --- End quote --- Presumably an electret microphone will pickup and amplify any sound. If so then the amplified wound will be the same quality as that from the speakers, and there is the possibility of audio feedback. |
| Naahuel:
Thanks joshhunsaker! :) It looks cheap and effortless. Definitely worth a try! What tggzzz said about audio feedback is the first thing I thought about with this microphone idea. But I guess I'd have to try. |
| joshhunsaker:
These particular mics tend to be very directional from my experience. If you're worried about feedback, mount it in a foam block potentially. Most of the issue with lack of quality with these types of things is just lack of bandwidth available at a certain distance away from the speaker. If you converted a set of tv speakers into a set of headphones likely they would sound just as good (if not quite a bit better) than most headphones on the market. Close-range mic'ing will produce a far different sound than the typical vantage point of a person's listening experience for the same drivers. |
| Sohail:
Hello friends I have same problem with my Samsung LED TV UA32EH4003R. There is no any audio output eg Aux/ Digital Audio Output/ RCA or any jack not available, there is only two option I have that is change my LED TV or make AUX or RCA from internal speakers, but I can't found how to wired and which converter I can use for output from internal speakers. Anybody know about this kindly help me. |
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