MP3 Doorbell Help.....

Mr RB said:

10 seconds is ok, it's not long enough to warrant a SD or MMC card and MP3 codec and a good size you can do with a micro and a eeprom.

If you work with microcontrollers and don't mind building and programming a complex device there is some stuff here that you can use to record/encode/playback sound;
(algorithms to encode 8bit sound to 1bit) Roman Black's BTc 1bit Sound Encoding Algorithms

(Windows software to help, playback hardware) BTc Sound Encoder v3.0 - free sound software

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