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I need a custom prototype to be designed. The purpose of this prototype is really simple - Essentially what I need is a very cheap audio looper which can loop one 300 seconds of high quality (atleast 24kHz with 120kb/s) audio (like a song which is hard coded in the circuit) with no specific format. The parts would essentially be - audio-looper-circuit + headphone-jack + battery - maybe AAA.
I need it to be super cheap when it goes to production, ideally about 1-2 $ when produced on large scale. It can be done using ATTiny, like it is done here using raw audio and no 'cards' to store anything just raw storage - [obscured] -eu-west-1.amazonaws.com/makapufprojects/oie/doc.html#goose and [obscured] /index.php?r=05.Projects&proj=02.%20Single-chip%20audio%20Player (use alternate storage and not SD card because it alone makes the prototype 1$ )
One again, the audio should be played via the audio jack, not a speaker. Also, please mention what could be the production costs (acc...
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