An audio frequency generator is a deviceused to form frequencies in the sound range, namely from twenty to twenty thousand hertz. In the device is the conversion of electromagnetic waves in the sound.
Any sound generator consists of severalobligatory parts: passive circuits, electric power source, active element, feedback device (circuit). Each of these elements performs its function. So, passive circuits provide excitation and constant maintenance of vibrations. Active elements convert the received energy into oscillatory. Feedback circuits mainly control the active parts and provide the conditions for the occurrence of self-oscillations.
Audio frequency generator is mainly usedin order to tune or define some of the technical characteristics of the paths at a low frequency. They are also used to control nodes and elements of receiving and transmitting radio devices. Another function entrusted to the sound frequency generator is their use as modulators, as well as sources for powering measuring devices and calibrating them. Many devices allow you to change your output signal with a certain small step, which allows you to very accurately configure any equipment.
Also, sound generators canbe used to find places for laying pipelines or cables. The device is optimal for searching at long distances. This is achieved by adjusting, through two steps, the power that is generated at the output. It is also characterized by the possibility of radiation in the simultaneous mode of several frequencies, which provides a search by multi-frequency technology.
The sound frequency generator is widely used whencreating analog synthesizers. These synthesizers have one characteristic feature - they allow you to build a final instrument on the basis of blocks almost independent from each other. All signals that pass between individual blocks are clearly standardized. Also, the voltage level is fully consistent, since all signals that are transmitted are of non-digital nature.
When the synthesizer is working, the pressed key on itsThe keypad transmits a signal to the incoming port of the audio frequency generator. The magnitude of the voltage that this signal possesses determines the pitch that the sound generator should produce. As a result of the transformations, a diverse sound frequency is obtained, formed by a different wave nature. Due to this, the main timbre of the sound is formed directly. At this moment, with the help of a mixer, you can organize the management of the levels of all used waveforms, as well as add additional noise signals.
