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Hi all,
I want guidance to do a project in arduino. I want that when i press a switch pre-recorded human voice should be heard. I dont wanna use a shield.
THankx in advance
 
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Shubham Garg

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Reading a button press is easy.
Use the arduino to read data from an external EEPROM and write out to a Digital to Analog Converter chip.  Both can be easily accessed via SPI commands.
Then a 1-transistor driver after the DAC and out to a speaker
Use the arduino to receive the data and load the EEPROM, do you sampling, etc, on the PC.
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Designing & building electrical circuits for over 25 years. Check out the ATMega1284P based Bobuino and other '328P & '1284P creations & offerings at  www.crossroadsfencing.com/BobuinoRev17.
Arduino for Teens available at Amazon.com.

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What will be the coding and how to interface arduino with SD card to store music files
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Shubham Garg

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Depends on how long your sound track would be, may be you don't need SD card?
And DAC could be built on 2R-R ladder or fast PWM.
Check on, there is a good "minimum hardware" solution:

http://elm-chan.org/works/sd8p/report.html
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You didn't mention an SD card. [edit - or Music files! Caution - Requirements Growth!]

To do that, you will need an SD card, and a 3.3V regulator, and a 5v to 3.3V level converion - might as well get the adafruit data logger at that point, and get an RTC source thrown in to boot.
http://www.ladyada.net/make/logshield/
Then use the prototyping area for the DAC and speaker amplifier.
« Last Edit: June 06, 2011, 12:04:33 am by CrossRoads » Logged

Designing & building electrical circuits for over 25 years. Check out the ATMega1284P based Bobuino and other '328P & '1284P creations & offerings at  www.crossroadsfencing.com/BobuinoRev17.
Arduino for Teens available at Amazon.com.

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KE7GKP,
That seems like decent board for low level audio - what does it take to get up to 256 Dual Stereo Audio, from any hardware device (in particular: USB thumb drive, or a USB hard drive - big one, 500GB, so probably not battery powered)
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Designing & building electrical circuits for over 25 years. Check out the ATMega1284P based Bobuino and other '328P & '1284P creations & offerings at  www.crossroadsfencing.com/BobuinoRev17.
Arduino for Teens available at Amazon.com.

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I was looking into those when Neuros Audio came out with theirs! Ended up with several of them instead; my 20GB players are not being used, too little capacity and the USB1 a killer on download speed, but I have 3 of the 80GB USB2 that I use all the time.
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Designing & building electrical circuits for over 25 years. Check out the ATMega1284P based Bobuino and other '328P & '1284P creations & offerings at  www.crossroadsfencing.com/BobuinoRev17.
Arduino for Teens available at Amazon.com.

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thx every1, i am using http://elm-chan.org/works/sd8p/report.html . most simple to work with.
but i wanted to know that how can i play diff voices. i will have a total of 5 switches, each for diff voice.
and can i use arduino uno instead of ATtinyX5 series (25/45/85) 8-pin AVR microcontroller
« Last Edit: June 06, 2011, 05:55:57 am by gshubham96 » Logged

Regards
Shubham Garg

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