Bacteria, algae and other organisms thrive under warm water conditions this is obviously harmful not just for athletes but the general public in a commercial swimming pool, for competitive pools the water should be no higher than 82Â°F (28Â°C), for recreational pools the recommended maximum is 84Â°F (29Â°C).
Distortion is also used as a musical effect, particularly with electric guitars. The addition of noise or other outside signals (hum, interference) is not deemed distortion, though the effects of quantization distortion are sometimes deemed noise. A quality measure that explicitly reflects both the noise and the distortion is the Signal-to-noise-and-distortion (SINAD) ratio.
The amount of the nonlinear distortion is measured using a sine wave as a test signal. THD is defined as the ratio of the geometric mean of the harmonic components (v2, v3, v4, v5, ... ) and the fundamental component (v1). It is expressed in dB or %, and lower numbers are considered to be better.DSSF3's THD analyzer is designed for measuring the distortion of input/output systems, like an amplifier and a soundcard. Internal signal generator is used to feed a test signal to the device under test, and its output is measured.Basic measurement configuration is as follows.f the soundcard's input and output are connected directly (R ch: ----), distortion of the soundcard itself can be measured. This is called a loopback test, and is very important to perform an accurate measurement.