A recommendation for a fast-response-time-resolution-mp3-module for arduino 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!
I'm going to suggest that you stay away from these mp3 modules. It is perfectly reasonable to use a stand-alone arduino unit to directly generate sound using the digital output pins with a low-pass filter RC circuit. This is the most efficient way of doing this and will give you a very low activation latency.

https://playground.arduino.cc/Code/PwmFrequency/

The other option is to connect a DAC circuit and simply build a sample table for the wave outputs you need for each tone.