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How Fast Is The 400 MHz Pentium* II Processor?

How we tested with Sound Forge*

Step 1: Noise Reduction
The original sound clip has some background hissing (see Figure 1). The first 1 second of noise was selected and the noise print captured (see Figure 3). Sound Forge was able to eliminate most of the noise (see Figure 2).

Download Sound Clips

Original Noise Reduced

First 6 seconds (.mp3) 100KB (36s using 28.8k) 100KB

First 6 seconds (.wav) 1.1MB (7min. using 28.8k) 1.1MB

Full 19 seconds (.mp3) 314KB (2min. using 28.8k) 314KB

Full 19 seconds (.wav) 3.5MB (20min. using 28.8k) 3.5MB

(Download MP3 player)

Figure 1. Original sound clip

Figure 2. Sound clip after noise reduction

Figure 3. Noise print captured by Sound Forge

Step 2: Eliminate DC Offset-->

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