Connect with us

replace piezo speaker with speaker

Discussion in 'General Electronics Discussion' started by Panther Cat 9, Mar 4, 2015.

  1. Panther Cat 9

    Panther Cat 9

    4
    0
    Mar 3, 2015
    Hey I bought this network camera off the internet and it's supposed to have a speaker. It was very quiet at the max volume setting. I cut the wires off the piezo and now I would like to attach them to a self powered speaker/amp. What do I need to do to accomplish this?

    I need the speaker so I can put the camera in my garage and yell at the dogs when they go to piss on things. They have been doing this for over a year now and I want them to stop.
     

    Attached Files:

  2. Harald Kapp

    Harald Kapp Moderator Moderator

    9,226
    1,860
    Nov 17, 2011
    Welcome to electronics point.
    The speaker in your first image isn't a piezo, it is a small coil operated speaker. You should be able to replace it by any other (amplified) speaker by connecting the red and black wires from the old speaker to the input of the new speaker.

    Note that you may have to turn down the volume in the camera settings. Otherwise the voltage at the old speaker connections may be too high for the input of an amplified speaker and may overdrive it grossly. Set the camera's volume such that the new speaker doesn't distort, then control volume with the new speaker's volume control.
     
    Last edited by a moderator: Mar 4, 2015
  3. Panther Cat 9

    Panther Cat 9

    4
    0
    Mar 3, 2015
    Am i hooking something up wrong?
     

    Attached Files:

  4. Harald Kapp

    Harald Kapp Moderator Moderator

    9,226
    1,860
    Nov 17, 2011
    Hard to say from teh picture. Can you draw a schematic? Doesn't it work at all, too silent, too loud or what?
     
  5. Panther Cat 9

    Panther Cat 9

    4
    0
    Mar 3, 2015
    I set the camera volume to 3/10. If i get a buzzing noise if I touch the clip from the red wire to the wire on the audio cable but not much with it firmly clipped. That buzzing I mentioned happens whether the "speaker" on the camera is activated or not.

    But no I don't really get anything. There is Definitely no change when I activate it and when it's at rest.
     

    Attached Files:

  6. Harald Kapp

    Harald Kapp Moderator Moderator

    9,226
    1,860
    Nov 17, 2011
    That "buzzing" noise isn't aht 60Hz, is it? You're probably picking up noise from the mains.
    You need to ensure correct connectio to the (3.5mm?) audio jack. Here is an overview of typical connections. Use the leftmost (generic) configuration.
    I doubt the color codes for the wires in the audio cable are standardized - and even if they are, there's no guarantee the manufacturer obeyed the standard. Better use a multimeter in Ohm range and measure.
    Since your camera has mono output only, you can connect the red wire to both left and right of the connector's cable, black to ground.
     
Ask a Question
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.
Electronics Point Logo
Continue to site
Quote of the day

-