memory allocate and waveplay in C++

[r2d2droids]

how can i allocate memory filled it 8 bytes datas form usb device and play this buffer in C++. any code? how can i do this. please help...

 

[newelltech]

Is this what you're asking?
1. Allocate 8 bytes of memory
2. Get 8 bytes from the USB port/device
3. Load the 8 bytes into the allocated memory
4. Play the 8 bytes like a wave file
5. Do it all in C++

If so, what do the 8 bytes represent?
A wave file has a specific format and you will have to build the full wave file.
8 bytes is going to sound like a 'tic' if that.
Maybe some more info would help

 

[r2d2droids]

thx for reply;

it must be like this;
1.allocate 1024 bytes of memory
2.read 128 times usb device and get 8 bytes from it every time
3.load datas into allocated memory
4.play the 1024 bytes recorded data like a wave file
5. and do it in C++

i am trying to make usb audio streaming. i wrote alot of codes but nothing.

in my project. PIC uC gets the analog audio signals and turns it digital data. sends it FT232 usb-serial converter via USART. and then converter sends it to PC.
thus far its ok. but then i couldnt do this as the same success.

please help.

 

[newelltech]

What do you mean "nothing" happens. Can you trace the program or use debugging to determine if the data that you're sending to the sound card is really changing?

Did you check the Audio Control Panel? If you don't have the output part of the mixer setup properly, you won't hear anything !!!!!!!!!
Double-Click the Speaker icon on your taskbar. Then Optionsroperties. Check the Playback button. Then OK. Now set the volume sliders for Master Volume and Wave to max and not muted.

Maybe this will help.

 

[r2d2droids]

every thing is ok. but i couldnt write the program...

 

[newelltech]

I don't understand...