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CAn someone explain how sound waves is modulated into Am and FM carrier waves? I only have a poor illustrarion i don't understand.
Modulation of sound waves refers to the process of changing the characteristics of a sound wave, such as its frequency, amplitude, or phase. This allows for more efficient transmission of sound signals over different mediums, such as air or electronic circuits.
AM (Amplitude Modulation) and FM (Frequency Modulation) are two different methods of modulating sound waves. In AM, the amplitude of the carrier wave is varied to encode the original sound signal, while in FM, the frequency of the carrier wave is varied. AM is more commonly used for transmitting voice signals, while FM is used for music and other high-quality audio transmissions.
The type of modulation used can greatly impact the quality of the sound. In AM, the quality of the sound may be affected by interference and noise, resulting in a lower quality signal. FM is less susceptible to interference, resulting in a higher quality sound signal. Additionally, the bandwidth used for transmission can also affect the quality of sound.
The main purpose of modulation is to allow for the efficient transmission of sound signals over different mediums. Without modulation, sound signals would not be able to travel long distances or through different mediums, such as electrical wires. Modulation also allows for multiple signals to be transmitted simultaneously without interfering with each other.
Modulation of sound waves is used in many everyday technologies, such as radio, television, and cell phones. These devices use AM or FM modulation to transmit sound signals over long distances. Modulation is also used in audio equipment, such as speakers, to amplify and reproduce sound signals with higher fidelity.