Signal to noise ratio is a measurement of the audio signal level compared to the noise level present in the signal. SNR specifications are used in components such as amplifiers, CD/DVD players etc.,
Calculate Signal to Noise Ratio for the audio signal series (50,30,20,35,25).
First, let us calculate the value of Mean and Standard Deviation
Step1 | |
| Mean (μ) | = ∑ X / n |
| = (50+30+20+35+25) / 5 | |
| = 160 / 5 | |
| = 32 | |
Step2 | |
| Standard Deviation (σ) | = √∑(X-μ)2 / n-1 |
| = √(50-32)2 + (30-32)2 + (20-32)2 + (35-32)2 + (25-32)2 / 4 | |
| = √182 + -22 + -122 + 32 + -72 / 4 | |
| = √530 / 4 | |
| = √132.5 | |
| = 11.51086 | |
Step3 | |
| Now, calculate the value of Signal to Noise Ratio | |
| SNR | = μ / σ |
| = 32 / 11.51086 | |
| = 2.7799834243488326 | |
