How to design a simple wav format player ?

[hansika]

Hi friends,
i want to design a circuit which will play songs in .wav format, while searching for that i came to know that one DAC0800 with opamp will do it.but as a beginner in this i dont know how all this happen can any please provide me the microcontroller and the connection diagrams for this and which microcontrollers will suitable for this type of purpose

 

[deepuj]

Re: wav format player

Unencoded uncompressed .wav files are just a series of digitized audio levels. For playing them back, you need to know the sampling frequency of the audio stream (this should be in the file header).

The selection of DAC and micro-controller solely depends on the sampling frequency of the audio (while playing back you will have to use the same clock as the sampling frequency). If it is not sampled too fast you can go for a low end PIC micro-controller to do that. But then the question comes... Where are you getting the audio stream from? Do you have to read it of a drive or EPROM? In that case you will have to interface the PIC to read that as well!