Converting Raw byte data to float[] and values needs to be between -1 and 1

I don't if I am doing it right, but I am using this method to convert a byte array to float array as shown in this link :

public static float[] ConvertByteToFloat(byte[] array) {   
        float[] floatArr = new float[array.Length / 4];   
        for (int i = 0; i < floatArr.Length; i++) {
              if (BitConverter.IsLittleEndian) {
                 Array.Reverse(array, i * 4, 4);
              }
              floatArr[i] = BitConverter.ToSingle(array, i * 4);   
        }   
        return floatArr; 
}

the input array is an array containing wave raw data (with no header)

The problem is that i am getting (after conversion) values like :

-9.66012E+24, 1963.15576, -5.11384777E-36, -1.19718621E-07

How can I convert this array to a float array and its values should be between -1.0 and 1.0?

Edit:

my input array starts like this :

Solution

You can look at the implementation of WriteSample():

    public void WriteSample(float sample)
    {
        if (WaveFormat.BitsPerSample == 16)
        {
            writer.Write((Int16)(Int16.MaxValue * sample));
            dataChunkSize += 2;
        }
        ...

Note how that it converts a float to a 16-bit signed integer by multiplying it by Int16.MaxValue. That's because the internal data format is signed 16-bit integers between -Int16.MaxValue and +Int16.MaxValue.

This means that the values you're working with are Int16 (aka short), and you need to convert them back to floats by dividing them by Int16.MaxValue.

For example, given your sample input:

byte[] bytes = { 232, 255, 235, 255, 232, 255, 235, 255, 232, 255, 235, 255, 232, 255, 235, 255 };

for (int i = 0; i < bytes.Length - 4; i += 4)
{
    float f = BitConverter.ToInt16(bytes, i) / (float)Int16.MaxValue; 
    Console.WriteLine(f);
}