author: john j b allen

... dB scale therefore has no true zero point. Instead, values are computed as ... change in air pressure. Loudness and Pitch: Phons, Sones, Barks, and Mels ... sone (regardless of absolute dB value, which could be either higher or lower than ...

... QRS complex, but not in the baseline level around which these features oscillate; in fact, in this example, a slow-moving DC shift can actually be problematic for detecting the R peak. Lastly, filter selections vary among low-pass, high ...