[SOLVED] How to remove header from wav file?

[Mandar Joshi]

Hi,
I am using PWM for sound generation on STK600(ATmega2560). PWM frequency I am using is 31.25KHz. By using coolwave I have converted sound file to to 8-bit PCM mono wav format. And then used hex editor to get corresponding hex values. But I am not getting how to separate header from wav file to get data bytes only? Is there any particular software or any other method to do so .

 

[andre_luis]

Why don´t you simply ignore the first 44 bytes ?
See this for more information : https://www.codeproject.com/Articles/15187/Concatenating-Wave-Files-Using-C

 

[Mandar Joshi]

I have tried by discarding first 44 bytes but it didn't work. I get some sound but it is not even close to sound I am expecting.

 

[andre_luis]

Are you allowed to place here the pieces of code that you're using for read the file and convert it to PWM duty-cycle ?

 

[paulfjujo]

hello,


maybe you have to write your own "spliter" program..
i worked any years ago on wav files..
maybe it can help you .

 

[Mandar Joshi]

Paul I will definitely go through your files and I am using hex editor to get values of wav files and then storing it on dataflash. Afterwards I am reading those values and putting them one by one on match compare register. Initially I have tried for a wav file which was available for me and it worked fine. But as I am trying now for different wav file it doesn't work. So it must be wav file header issue, code works fine.

 

[Mandar Joshi]

If anyone wants to remove header from wav file, visit the link below. It is very useful. It says it supports Win32 and Linux/x86, but it worked for Windows 7 too.

https://mark0.net/soft-riffstrip-e.html