Digitization. When an analog waveform is converted to a digital file, the analog information must first be translated into bits. This is done through sampling, a process performed by a computer's Analog to Digital Converter (ADC) hardware.
For example, the drowsiness effect of trazodone can be helpful for people who have insomnia. Trazodone is especially useful as a sleep aid in people with depression, since it is effective for both insomnia and depression. Conversely, some antidepressants are likely to cause insomnia, even when taken in the morning. Trazodone can be used to treat insomnia caused by other antidepressant medications.
Sleep onset insomnia is difficulty falling asleep; middle insomnia is trouble staying asleep; and late insomnia is waking very early in the morning unable to return to sleep. As a sleep aid trazodone can be used as a treatment for a longer period of time than can many of the popular sleep aids.