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Topic: A recommendation for a fast-response-time-resolution-mp3-module for arduino (Read 608 times) previous topic - next topic

ShirSiv

I am working with Arduino which activates a box which is similar to a Skinner Box. Some of the output sound stimuli are sine waves with duration of less then 5 milliseconds. I output the sounds using the MP3 module DFR0299.

However there are too much problems using this module: it seems like the module has a wakening delay of around 100 ms, so it is not working well with this duration and below (the response time of the module is important).

So, I was thinking of buying a better module. However, I am far from being an expert in these things..

I can look for other modules in the internet, but, just from looking at the datasheets, I cant tell if the quality of the module is what I need.

I would be grateful if any of you could give me names of modules that might feet my requirements (or even advice me at what to look in the datasheets)

Thanks!

MarkT

For short samples like this you shouldn't be using a compressed format, the start up preprocessing time for decompressing the first block will prevent you achieving prompt or exact timing no matter which module.

Just use straight WAV format - can't help you choose a module I'm afraid. You probably need one where the samples are resident in ROM rather than SDcard for the speed requirements.
[ I will NOT respond to personal messages, I WILL delete them, use the forum please ]

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