Cicada Chorus 1 Nature Sounds. Cicada Chorus 1: A chorus of high-pitched cicadas rising and falling in the foreground. The sounds can be shrill so keep the playback volume low and adjust carefully. This same shrillness or emphasis on high frequencies also makes this recording excellent masking effects for locations with fans, machinery, or ringing in the ears.
White Noise: Random noise signals at a constant level. A type of hisssss sound, it reminds one of a nearby waterfall, a very fast-moving stream or river, a heavy rain. The sounds is steady and continuous, making it the most-popular choice as a masking sound for sufferers of ring in the ears.