ARM DSP library: use of arm_fir_init_f32

Hi all,

I looked at the example Keil\ARM\CMSIS\DSP_Lib\Examples\arm_fir_example and I am interested to use the ARM DSP library in order to filter out high frequencies from my input signal acquird by Analog to Digital Converter "ADC".
The fir coefficients as stated in the documentation are provided by fir1() of matlab mathworks.
and the input signal is provieded by an array already available in memory.
Now my question is: is there some scaling of ADC samples before sampling. In other words, do I have to scale the ADC samples to [-1.3194792169 +1.3194792169] range as done in the example.
PS: My samples change from 0 to 4095 (12-Bit ADC)

Thanks & Regards,
Badreddine