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Individuals with exploding head syndrome hear or experience loud imagined noises as they are falling asleep or are waking up, have a strong, often frightened emotional reaction to the sound, and do not report significant pain; around 10% of people also experience visual disturbances like perceiving visual static, lightning, or flashes of light.
Traumatic noise exposure can happen at work (e.g., loud machinery), at play (e.g., loud sporting events, concerts, recreational activities), and/or by accident (e.g., a backfiring engine.) Noise induced hearing loss is sometimes unilateral and typically causes patients to lose hearing around the frequency of the triggering sound trauma. [17]
In August 1995, HP released the first computer in the Pavilion line known as the HP Pavilion 5030, an IBM PC–compatible desktop computer designed for multimedia use. While it was not the first multimedia PC the company made, it was the first computer made by HP that was designed specifically for the home market.
Loud snoring. Excessive daytime sleepiness. Morning dry mouth. Irritability. Headache. There are two main types of sleep apnea: Obstructive sleep apnea (OSA). This is the most common type of sleep ...
A loudspeaker (commonly referred to as a speaker or, more fully, a speaker system) is a combination of one or more speaker drivers, an enclosure, and electrical connections (possibly including a crossover network). The speaker driver is an electroacoustic transducer [1]: 597 that converts an electrical audio signal into a corresponding sound. [2]
The other attempts to arrange the listening room to be 'dead' acoustically, leaving indirect sound to the dispersion of the speakers need only be sufficient to cover the listening positions. A dead or inert acoustic may be best, especially if properly filled with 'surround' reproduction, so that the reverberant field of the original space is ...
White noise devices are available from numerous manufacturers in many forms, for a variety of different uses, including audio testing, sound masking, sleep-aid, and power-napping. Sleep-aid and nap machine products may also produce other soothing sounds, such as music, rain, wind, highway traffic and ocean waves mixed with—or modulated by ...
Sleep-talking can be monitored by a partner or by using an audio recording device; devices which remain idle until detecting a sound are ideal for this purpose. Polysomnography (sleep recording) shows that episodes of sleep talking can occur in any stage of sleep. [1] Stress can also cause sleep talking. [3]