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Dreeass
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Audio jack to speaker with positive and negative ends

Sat Aug 17, 2013 1:37 pm

I've got some broke earbuds laying around and a speaker. Could I connect the speaker to the audiojack of the earbuds by soldering them and then use the speaker?

Image Image Image
(Positive and negative end are marked on the speaker)
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bullwinkle
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Re: Audio jack to speaker with positive and negative ends

Sat Aug 17, 2013 1:48 pm

Hi

check out the tutorial from adafruit, you might get some ideas....

http://learn.adafruit.com/stereo-3-7w-c ... und-system

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Dreeass
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Re: Audio jack to speaker with positive and negative ends

Sat Aug 17, 2013 2:16 pm

bullwinkle wrote:Hi

check out the tutorial from adafruit, you might get some ideas....

http://learn.adafruit.com/stereo-3-7w-c ... und-system
Thanks, I want to cut the wire of the audio jack open and see what's inside. There probably are 3 wires inside: ground, one for the left earbud and one for the right. But I have one speaker, isn't it going to sound weird if I use one wire of a stereo jack?
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bullwinkle
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Re: Audio jack to speaker with positive and negative ends

Sat Aug 17, 2013 2:29 pm

yes you are right, you will get either the left or the right side on the single speaker.

I read somewhere here on these forums about converting stereo to mono. I'll see if I can track it down and post back.

edit: so it looks like there is an alsa setting to create a mono output. Best to check out the web for further details...
http://www.linuxquestions.org/questions ... ke-815094/

good luck....

cdlt,
Last edited by bullwinkle on Sat Aug 17, 2013 2:36 pm, edited 1 time in total.

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Dreeass
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Re: Audio jack to speaker with positive and negative ends

Sat Aug 17, 2013 2:34 pm

bullwinkle wrote:yes you are right, you will get either the left or the right side on the single speaker.

I read somewhere here on these forums about converting stereo to mono. I'll see if I can track it down and post back.
Thanks!

Edit:
After cutting open the main wire, there seems to be a plastic wire with some weird stuff in it including 3 colors of wires. I already know what color does what, but how in the name of god do I solder that?

Image Image

2nd edit:
Seems to be that I had to do it way more careful. Now I don't have the problem anymore.
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Dreeass
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Re: Audio jack to speaker with positive and negative ends

Sat Aug 17, 2013 4:27 pm

After soldering everything together, it works but is very quiet. Is there a way to boost the volume?
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mahjongg
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Re: Audio jack to speaker with positive and negative ends

Sat Aug 17, 2013 10:02 pm

yes, an amplifier, such as the one in the adafruit link posted by bullwinkle

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