TO get voice as output through speaker

Hello
I want to design one system...
in that system for example suppose there are 2 switches blue and red..
so if i press blue button then my speaker should output voice " i m blue"
similar output with red switch...also my system should be standalone..
for designing this system do i need dsp processor?
if yes how i should proceed?

Hi,

guess what... I´ve googled.

"voice capture IC"
"voice recorder chip"
"voice recording chip"

they bring a lot of results.

Klaus

Once you have digitized audio data in memory, you only need to feed it to a DAC and send the output to a speaker. The speed should be the same rate it was recorded. As low as 8k samples per sec is legible.

can you please tell me how to digitize audio data???
memory means are you referring to microcontroller memory??

You can use voice recorder IC ISD1820

The only method I've used is Audacity, a popular free software for Mac and Windows. Click 'Record'. Speak into your computer mic, or play sound into your audio input. The waveform appears onscreen. Play it back, manipulate it, overdub more tracks, etc. Save it as a wav file, mp3, etc.

Such software is useful to learn about creating digitized audio. You can create files of your voice saying 'I'm red' and 'I'm blue'. Perhaps you can also transfer such files to your standalone system. To play the audio, you must learn about formats for digitized audio. That is not an easy learning process, because there is more than one format.

Perhaps you would rather record speech into your standalone system? Then you must build it so it does the same thing as a computer running Audacity. In that case you should consider available IC's as suggested in post #2.