Sound frequency generator and its applications

The audio frequency generator is a device used to generate frequencies in the audio range, namely twenty to twenty thousand hertz. In the adaptation is carried out the transformation of electromagnetic oscillations into sound waves .

Any sound generator consists of several mandatory parts: passive circuits, a source of electricity, an active element, a 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 conditions for the occurrence of self-oscillations.

The audio frequency generator is mainly used to adjust or determine some technical characteristics of the channels 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 powering the 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 can be 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 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 when creating 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 working, the pressed key on its keyboard 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 transformations, a diverse sound 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.

Also, the audio frequency generator can be used to protect, in active form, from various bioenergetic fields that have weak power characteristics. This property allows the use of generators to stimulate the functioning of the human body with the help of specific electrical pulses at a frequency of about ten hertz.