An audio frequency generator is a device,Used to generate frequencies in the audio range, namely from twenty to twenty thousand hertz. In adaptation, the conversion of electromagnetic oscillations into sound oscillations is carried out.
Any sound generator consists of severalmandatory parts: passive circuits, power source, active element, feedback device (circuit). Each of these elements performs its function. Thus, passive circuits provide excitation and constant maintenance of oscillations. Active elements convert the energy received into vibrational energy. The feedback circuits mainly control the active parts and provide the creation of conditions for the occurrence of self-oscillations.
The audio frequency generator is mainly usedin order to adjust or determine some technical characteristics of the paths at a low frequency. They are also used to control the nodes and elements of radio transmitting devices. Another function assigned to the audio frequency generator is their use as modulators, as well as sources for supplying measuring devices and their calibration. Many devices allow you to change your output signal with a certain small step, which allows you to fine-tune any equipment.
Also, audio frequency generators canUse to find places for laying pipelines or cables. The device is optimal for searching at long distances. This is achieved by adjusting through two stages of power, which is formed at the output. It is also characterized by the possibility of radiation in a simultaneous mode of several frequencies, which provides a search for multi-frequency technology.
The audio frequency generator is widely used forcreating analog synthesizers. These synthesizers have one characteristic feature - they allow you to build the final tool on the basis of almost independent blocks. All signals that pass between the individual blocks are clearly standardized. Also the voltage level is fully coordinated, since all signals that are transmitted are of a non-digital nature.
When the synthesizer is operated, the key pressed on itThe keypad transmits the 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 must produce. As a result of the transformation, a diverse audio frequency is obtained, formed according to a different wave nature. Due to this, the main tone of the sound is formed directly. At this point, with the help of a mixer, you can organize the control levels of all used waveforms, and additionally add noise signals.
