i have a legacy processed audio wav file. Another UN-processed copy of the source is processed by my algorithm. From both processsing blocks i get processed wav files as output. Now i want to do null tests, because i read (will soon quote the reference) null tests are suitable for objective loudness comparision. So
merely sutracting is enough?? But merely subtracting is not working. I see high of difference value. So what other parameters should be considered for null-testing!
wav file descriptions:
Source : 16 bit pcm ,48Khz sampled,32 Seconds length
Output : Both 24 bit,48Khz sampled,32 Seconds length