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After mainly using FTDI's sound modul VMUSIC2 up to now, i put my attention to new SOMO-14D from Australia: http://www.4dsystems.com.au/prod.php?id=73
Price is much lower. It's not allowing HI-FI stereo sound, but should be OK for any sorts of announcements. It's using AD4 format sound files stored on standard Micro SD memory card. There also is software for converting from MP3- or WAV format.
Klaus
It looks like a great little audio module , do you know how fast it is ?
Years ago I made a houserobot with a voice ,using a SPO256 soundchip
which is a phonetic voice synthesizer ,(63 allophones, five of which are pauses).
It sounded like a robot .
It would be nice to record human voices in this SOMO-14D module and maybe with
some little voice-recognation to give your house some voice-input,but the module
must be fast , did you tried it already , if so, were did you buy yours ?
You cannot compare speach quality with others, only using a voice synthesizer. By using free available windows software, you can convert conventional MP3- or WAV-Files ( i am using free software AUDACITY for creating it ) into AD4 format used by SOMO module. So you will hear e.g. your own voice.
As long as sound files are spoken, SOMO is providing an active output signaling BUSY status. So its quite easy for a microcontroller, to detect sound file endings and starting next sound segment if required. I did use the SOMO for e.g. speaking measuring results consisting of several numerical values. For this it also was important to output several speach segments in a sequence as fast as possible.
BTW, for my application i did use BASCOM-AVR, because my knowledge in C was not good enough for writing a suitable piece of software.
The SOMO is NOT made for voice-recognition.
I did buy my from SPARKFUN (USA). Another provider is TIGAL ( Austria ).
Klaus
Thanks for your info ,from what you write it's fast enough .
For simple voice-recognition I will use some filters
and some command-length detection , controlled by a jeenode.
Joop