WAV player from SD card help need.

How to play a wav file from micro sd card direct from uno ?
i want to use only sd card and uno board and a speaker any help ?

i want to use only sd card and uno board and a speaker any help ?

First, you need to understand how the data in the wav file on the SD card relates to output from the speaker. Do you? If you do, then I can’t imagine why you are asking. If you don’t, then I can’t imagine how you are going to write the program.

A peak at wav shield schematics, like the one from adafruit, reveals that the Arduino lacks some hardware needed. Like an amplifier, to start.

My SD - Arduino - WAV player is working now .. Thanks for reply . i don't need the output as much louder as a speaker can drive but i need only
audio signals to give out to amplifier or in my project - emergency telephone caller system to telephone receivers mic connection my planning is
when anything like smoke , temperature or movement triggers arduino , then it calls to predefined number in telephone instrument and plays a
recorded audio clip in SD card. any further tips are highly thankful from you. I am not a genius in the coding part , i am just learning the code
systems from this forum. thanks.