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.
March 10, 2003. Introduction: Sensorineural hearing impairment alters sound perception in a complex nonlinear manner. The relative amplitudes of harmonics and temporal modulations are among the many characteristics of sound that are altered, resulting in distorted percepts such as timbre and loudness. These changes to the perception of sound due to hearing impairment affect both speech intelligibility and sound quality.