Unexpected values while reading wav blocks in C++

Question

I have a what seems to be an easy problem yet I can't seem to get the results I want.

According to the Wav Format , a 16-bit wav file is signed and values range from -32768 to 32767. Yet I can only seem to be getting positive integers, what am I missing?

Here's a screenshot of the few bits of data I outputted:

• Additionally, can someone explain how to tell apart the right channel data and left channel data? I can't seem to find enough examples of this. Thanks.

Here's the code I used, wav.getFile() returns the file pointer exactly after reading all the other header data.

int SoundData;

        for( int i = 0; i < 32; i++ )
        {

            fread( &SoundData, 4, 1, wav.getFile() );
            cout << SoundData << endl;
        }

Thanks in advance everyone.

Answer 1

将SoundData更改为short int是否有帮助？

Answer 2

(going to put this as answer suggestion):

You're reading 4 bytes at a time ... don't you want to read 2 bytes at a time (16 bits)?

so

fread( &SoundData, 4, 1, wav.getFile() );

should become

fread( &SoundData, 2, 1, wav.getFile() );