Built-in audio playback module
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From: Tom Meyer on 20 Apr 2010 17:26 I am looking for the simplest way to store a single MP3 file (sound effect) and play it back in loop mode from _within_ an electronic device. IOW not requiring externally connected hardware. I have considered analog voice recorders but they are only available up to 120 seconds (as kits). I have also seen a system that reads off an SD card. Both are relatively expensive. Can anyone suggest any alternatives? Tom Meyer
From: Charlie E. on 20 Apr 2010 18:13 On Tue, 20 Apr 2010 21:26:21 GMT, tommeyer(a)protrend.com (Tom Meyer) wrote: >I am looking for the simplest way to store a single MP3 file (sound >effect) and play it back in loop mode from _within_ an electronic >device. IOW not requiring externally connected hardware. > >I have considered analog voice recorders but they are only available >up to 120 seconds (as kits). I have also seen a system that reads off >an SD card. Both are relatively expensive. > >Can anyone suggest any alternatives? > >Tom Meyer Tom, Need a lot more info. How big is your sound effect? How good does it have to sound? I am doing a lot of sound files (speech) on a simple PIC processor right now, but it used ADPCM, not MP3. MP3 takes a little more processing, that might require a DSPic or similiar device. Haven't tried that myself, yet... Charlie
From: D Yuniskis on 20 Apr 2010 18:47 Hi Tom, Tom Meyer wrote: > I am looking for the simplest way to store a single MP3 file (sound > effect) and play it back in loop mode from _within_ an electronic > device. IOW not requiring externally connected hardware. Does it have to be an MP3? (I think many MP3 decoders are licensed) > I have considered analog voice recorders but they are only available > up to 120 seconds (as kits). I have also seen a system that reads off > an SD card. Both are relatively expensive. Are you just looking for "voice grade" (bandwidth) reproduction? I.e., what characteristics can you "settle for" in your data representation and reproduction? How deep/long do you want to record (or store) data? E.g., there are several audio CODECs that are established technology -- some even "free" that could be implemented to compress the data. If you aren't concerned about the memory requirment, you could just store raw samples and push them out a D/AC (various technologies available for that choice as well). > Can anyone suggest any alternatives?
From: Adrian Jansen on 20 Apr 2010 20:26 Tom Meyer wrote: > I am looking for the simplest way to store a single MP3 file (sound > effect) and play it back in loop mode from _within_ an electronic > device. IOW not requiring externally connected hardware. > > I have considered analog voice recorders but they are only available > up to 120 seconds (as kits). I have also seen a system that reads off > an SD card. Both are relatively expensive. > > Can anyone suggest any alternatives? > > Tom Meyer Have you looked at these ? http://www.dontronics-shop.com/mod-mp3-mp3-player-module-with-vs1002-mp3-decoder-encoder.html -- Regards, Adrian Jansen adrianjansen at internode dot on dot net Note reply address is invalid, convert address above to machine form.
From: TTman on 21 Apr 2010 02:15
"Tom Meyer" <tommeyer(a)protrend.com> wrote in message news:4bce1a1b.1602734(a)news.tpg.com.au... >I am looking for the simplest way to store a single MP3 file (sound > effect) and play it back in loop mode from _within_ an electronic > device. IOW not requiring externally connected hardware. > > I have considered analog voice recorders but they are only available > up to 120 seconds (as kits). I have also seen a system that reads off > an SD card. Both are relatively expensive. > > Can anyone suggest any alternatives? > > Tom Meyer 1 x Sound Module - Somo 14D = �20.54 from coolcomponents.co.uk ( other distys world wide...) |