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.
(Learn how and when to remove these template messages) Dysphonia, commonly referred to as hoarse voice, refers to dysfunction in the ability to produce voice. For voice to be classified as dysphonic, abnormalities must be present in one or more vocal parameters: pitch, loudness, quality, or variability.