[That one guy]

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.

 

[Rayregula]

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.

Does it need to be under a certain size?

 

[Rayregula]

Audio boards
.mp3
.wav

 

[Bluejets]

Look for audio amplifier module on Ebay.
You may have to go to a higher supply voltage for the 10w though.

 

[That one guy]

Audio boards
.mp3
.wav

Tks for replying, those are a little too expensive for me though, I need to keep it under probably $20. Any other suggestions?

 

[That one guy]

Look for audio amplifier module on Ebay.
You may have to go to a higher supply voltage for the 10w though.

Tks for replying, can i save an audio clip within the module?

 

[That one guy]

Audio boards
.mp3
.wav

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

 

[Audioguru]

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.

 

[Rayregula]

Tks for replying, those are a little too expensive for me though, I need to keep it under probably $20. Any other suggestions?

Here is a 10 watt amp still looking for a audio board

 

[Rayregula]

Here is a 10 watt amp still looking for a audio board

Or if you want to make your own. Here is the data sheet for that amp

 

[Rayregula]

Or if you want to make your own. Here is the data sheet for that amp

Look what we have here!

 

[Rayregula]

Look what we have here!

It looks perfect!

 

[Rayregula]

It looks perfect!

But you would have to get a larger battery or get a booster. I will continue to look.

 

[That one guy]

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?

 

[Audioguru]

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.

 

[Bluejets]

Here is a 10 watt amp still looking for a audio board

One here for a bit over $3.00 delivered.

http://www.ebay.com.au/itm/12V-Hi-F...124503?hash=item2ca45d1457:g:QkMAAOSwaA5WlLMh

 

[That one guy]

so

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.

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?

 

[That one guy]

One here for a bit over $3.00 delivered.

http://www.ebay.com.au/itm/12V-Hi-F...124503?hash=item2ca45d1457:g:QkMAAOSwaA5WlLMh

tks greatly appreciated