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Discussion Starter · #1 ·
Hi,

Had to share this. Today I received some parts from china that deliver great sound as soon as you apply power.
total was 7 dollars.

tested with a computer speaker had great sound and loud enough to make the wife yell at me.
There is about a 2 second delay before sound plays but all and all I was very impressed and will order many more.

Just put your mp3 on micro chip or usb and when you apply the power the mp3 starts playing. can add batteries for actors.

For 7 dollars free shipping and a 2 or 3 week wait, I do not think it can be beat.


links.

http://www.aliexpress.com/item/2-15...-Audio-Amplifier-AC-DC-12V-2A/1857892851.html

http://www.aliexpress.com/item/Mp3-...oder-TF-card-U-disk-decoding/32299253819.html

Electronics Technology Circuit component Electronic device Electronic engineering


Happy haunting

Fletch
 

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Nice links! I have had great success with the TDA amplifiers. If you hook them up to a decent quality speaker and a sufficient (2 amp+) supply, you will be AMAZED at the sound quality. I hooked one channel of a TDA7297 to a single one of these:
Loudspeaker Sound box Audio equipment Electronics Studio monitor

The sound just floored me! These can be had for $30 a pair shipped.
This brings me to comment, "why do so many haunters neglect quality sound?"
I believe that money spent on quality audio is very well spent. I see people spend hundreds on prop controllers, pneumatics, latex props, etc, only to finish off their scene with dime-store quality audio. The items you have linked to are the best of both, high quality sound and a very low price- awesome!
Thanks, Mike
 

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Discussion Starter · #3 ·
I do not think they want to neglect quality sound, I think it is a matter of budget and knowledge. Unless you had electronics and electrical training, the learning curve for the average DIY haunter is steep and a mistake costs money.

Good sound costs more than many of the props. Basic DIY control is an old MP3 player set on a loop with powered computer speakers triggered by turning on power with a remote electric switch or PIR. That solution has it's limits including not being able to start a routine from the beginning.

If you are on a budget and need that prop to speak, laugh or moan from the beginning of a routine...7 bucks, plus a few other things you have laying around any way: old speaker, trigger, power cord and USB.

happy haunting

Fletch
 

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Thank you for the great information. I think sound will be the next big thing for home haunters. The last few years it has been lighting.

But we aren't the only ones who skimp. Watch this:


They spent $50,000+ developing a prop that sells, complete, for over $15,000 but ran out of money when it came time to do the sound. It sounds like they sent somebody out to agitate a dog inside a fence and record it on cassette tape.
 

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They spent $50,000+ developing a prop that sells, complete, for over $15,000 but ran out of money when it came time to do the sound. It sounds like they sent somebody out to agitate a dog inside a fence and record it on cassette tape.
That's a great example- I think you know what I mean. It is not that people consciously want to neglect sound, it is that it is more of an afterthought after all their money, time, and resources have been exhausted on the rest. A really freaky environment can be created with dim light, great sounds, and virtually no props whatsoever.
-Mike
 

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Discussion Starter · #6 ·
LOL... very good example of poor sound effects.... seems like the sound player is good.... just when they did the free download of sound effects they googled beagle instead of pissed off angry beast..... this is very poor use of a great search engine... shame lol.
 

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Hey Fletch, do you know if the MP3 board remembers its last volume setting at power up, or does it begin playing at a 50% volume level?
The reason I ask (and that this topic is dear to my heart) is because I have been on a quest for various small audio players for quite some time.
I just recently tried one of these- it is called a "music angel". They can be found on Ebay for about $7 as well.
Electronics Technology Electronic device Audio equipment Loudspeaker

I was able to make it play at power up by disconnecting the internal battery, then I would leave the on/off switch in the ON position. Then, when power is applied to the USB mini 5v connector, it would begin to play at 50% volume- after a small delay similar to the one you mentioned above. The sound is not stellar, but it would probably be OK for a very small prop.

I just found a seller of the MP3 board you mentioned on AliExpress that sells them in lots of 10 for $19.55, so under $2 a piece! :)
I have bought other items from AliExpress before with good luck, so I went ahead and ordered some of these just now.
I have a couple "Perfect Storm" sound-sensitive lightning boxes, and I think these modules would be great for streaming a continuous thunderstorm audio track from a tiny little package.
Thanks again for finding them!
-Mike
 

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Discussion Starter · #8 ·
Hi Mike,

Tested it and it does remember the volume. I do not have a 3 watt speaker to check the on-board 3 watt amp but I am relying on the 15 watt amp to deliver the amplification to passive satellite speakers. This has had great results with more volume than a music angle.

Music angles are 3 watts. I have tried them but found once outside with ambient backgrounds and crowd noise that the sound gets lost or missed. I would rather turn down the volume than to find I cant turn it up.

I have ordered many parts to test and play with. Once I find the good solutions I will put in a big order while I still have time.

I am also leaning towards Arduino solutions and am not sure how easy it will be to use this mp3 player with that setup.... I could always use one of the relays to set it off but will still have that 2 second delay. Have lots of items ordered so it will be a fun summer of testing and building.

For spirit props with cheap disk sound.... the amp is perfect add on.


Fletch
 

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If you are going to use Arduino for more precise control, I have had much luck with the Catalex Module.
The seller offers a small discount if you buy 5 of them, making them just under $6 with free shipping.

This is the audio module I am using in the FourBanger project, so if you download the main zip package, you will find the Arduino source code I use to call the major functions of the module via serial control. I also threw together some info (manual, .Net test app, Arduino code) into a zip and dropped it HERE.

It sounds like you have some fun projects going on!
Thanks, Mike
 

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Thanks for posting this. I agree whole heartedly about the importance of sound. I have been using guitar amps for my 3-axis skulls only because I can get loud. Computer speakers don't have enough power to push the sound across my yard. Although I have been using these amps for sound, I can't stand this solution. Any recommendations?
 

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Discussion Starter · #11 ·
Just ordered the Catalex Module to play with. It is the only part missing to follow your banger box recipe.
waiting on an 8 channel relay, should work for testing.


It sounds like you have some fun projects going on!

lol,,, yes lots going on and tons of ideas but I promised myself one thing at a time.

Savage,

I was thinking guitar amps for some of the things that need excessive volume, cheap and work good. if you need something small, try one of these amps with a hifi or satellite speaker... for 3.50 it is a great little toy.

here is a demo on youtube

https://www.youtube.com/watch?v=IOshgYlWvxA

I also tried one of these but was more happy with my little amp.

http://www.aliexpress.com/snapshot/6605889645.html?orderId=66776074263115


Fletch
 

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If I understand the amplifier correctly. I can go from the sound output on my 3-axis skull PCB --> audio input of the amplifier --> a single 25W (max) speaker (that can be hidden inside of the chest cavity of my skeleton?

Hi,

Had to share this. Today I received some parts from china that deliver great sound as soon as you apply power.
total was 7 dollars.

tested with a computer speaker had great sound and loud enough to make the wife yell at me.
There is about a 2 second delay before sound plays but all and all I was very impressed and will order many more.

Just put your mp3 on micro chip or usb and when you apply the power the mp3 starts playing. can add batteries for actors.

For 7 dollars free shipping and a 2 or 3 week wait, I do not think it can be beat.


links.

http://www.aliexpress.com/item/2-15...-Audio-Amplifier-AC-DC-12V-2A/1857892851.html

http://www.aliexpress.com/item/Mp3-...oder-TF-card-U-disk-decoding/32299253819.html

View attachment 241735

Happy haunting

Fletch
 

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Discussion Starter · #14 ·
yes, the volume I get from this simple amp is very good. but if your skull is far away you might need something that throws (like the guitar amp) ..... for the money it is just to get one and test if it fits your needs. you can always use it to improve some other prop. remember, how it sounds in the house during testing is not what you will get outside....test outside.

I run a full show with 4 skulls, 2 rats and a bird. The staged show is for a loud crowd waiting to get into my haunt. For that I use an active JBL EON.... costly for DIY haunts but I use them for my occupation.

hope this helps,

Fletch
 
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