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Sound module

Discussion in 'General Electronics Discussion' started by That one guy, Dec 23, 2016.

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  1. That one guy

    That one guy

    17
    1
    Dec 23, 2016
    For a project i need to be able to play a repeating sound clip at the push of a button and it needs to be loud enough as well.
    I need to keep it cheap so i have decided to with a 3.7V battery and a 10W loudspeaker but i have no idea how to get a sound module. I wanted to change up a sound module in greeting cards but those require low voltage.

    If you can please help me to figure out how to complete this project I would be extremely grateful.
    Also if you have any ideas on how to make the sound output louder and make the circuit more efficient to make it cheaper please tell me.:)
     
  2. Rayregula

    Rayregula

    84
    18
    Dec 20, 2016
    Does it need to be under a certain size?
     
  3. Rayregula

    Rayregula

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    18
    Dec 20, 2016
  4. Bluejets

    Bluejets

    4,492
    957
    Oct 5, 2014
    Look for audio amplifier module on Ebay.
    You may have to go to a higher supply voltage for the 10w though.
     
  5. That one guy

    That one guy

    17
    1
    Dec 23, 2016
    Tks for replying, those are a little too expensive for me though, I need to keep it under probably $20. Any other suggestions?
     
  6. That one guy

    That one guy

    17
    1
    Dec 23, 2016
    Tks for replying, can i save an audio clip within the module?
     
  7. That one guy

    That one guy

    17
    1
    Dec 23, 2016
    Tks for replying and the suggestions but those are a little to expensive for me i would like to keep it under $20 if possible, any ideas.
    For the size, it can be a large but also to be handheld ( kind of like a shotgun ) I know it sounds shady but please bear with me :p
     
  8. Audioguru

    Audioguru

    3,085
    692
    Sep 24, 2016
    Powered by a 3.7V battery, an obsolete TDA2822M dual amplifier IC connected bridged to an 8 ohm speaker provduces only 0.3W which is less than a cheap clock radio.

    Modern bridged audio amplifiers from Texas Instruments provide 0.6W into an 8 ohm speaker but the IC is so small that you can hardly see it and it will be impossible to solder.
     
  9. Rayregula

    Rayregula

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    18
    Dec 20, 2016
    Here is a 10 watt amp still looking for a audio board
     
  10. Rayregula

    Rayregula

    84
    18
    Dec 20, 2016
  11. Rayregula

    Rayregula

    84
    18
    Dec 20, 2016
  12. Rayregula

    Rayregula

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    18
    Dec 20, 2016
    It looks perfect!
     
  13. Rayregula

    Rayregula

    84
    18
    Dec 20, 2016
    But you would have to get a larger battery or get a booster. I will continue to look.
     
  14. That one guy

    That one guy

    17
    1
    Dec 23, 2016
    Again tks so much for the suggestions guys.
    I think i figured out a way to use he greeting card sound module. By producing the sound using the sound module i can pick up the sound using another microphone, i can connect it to an audio circuit and amplifier, a battery and to a speaker. What do you guys think?
     
  15. Audioguru

    Audioguru

    3,085
    692
    Sep 24, 2016
    If the microphone can hear the speaker then you will have acoustical feedback howling.
    Record it with the speaker turned off then play it back with the microphone turned off.
     
  16. Bluejets

    Bluejets

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    Oct 5, 2014
  17. That one guy

    That one guy

    17
    1
    Dec 23, 2016
    so
    but what if i soundproof the area between the mic and 1st speaker? Then the mic wont pick up the sound output of the second speaker right?
     
  18. That one guy

    That one guy

    17
    1
    Dec 23, 2016
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