Answer. Answer: As the broadcaster speakers, the sound wave being produced by SPEAKER which is converted to AF signals that will be sent to ANTENNA that will transform the AF signal and RF carrier into modulated carrier wave MODULATOR will transmit the modulated carrier wave and will be received by a receiving antenna.

Message or Modulating Signal The signal which contains a message to be transmitted, is called as a message signal. It is a baseband signal, which has to undergo the process of modulation, to get transmitted. Hence, it is also called as the modulating signal.

It involves translating a baseband (or simply original) message signal to a bandpass signal at much higher frequencies. The translation of the message signal is performed by varying the amplitude, phase, or frequency of a high-frequency carrier in accordance with its amplitude.

AF amplifier is used for audio frequencies, i.e. from 20 Hz to 20 Khz. RF amplifier is used for radio frequencies, i.e. 500 KHz upwards. RF stands for Radio frequency. AF is for audio frequency.

Modulation allows us to send a signal over a bandpass frequency range. If every signal gets its own frequency range, then we can transmit multiple signals simultaneously over a single channel, all using different frequency ranges. Another reason to modulate a signal is to allow the use of a smaller antenna.

The purpose of modulation is to impress the information on the carrier wave, which is used to carry the information to another location. In radio communication the modulated carrier is transmitted through space as a radio wave to a radio receiver.

Frequency of an input signal can also be changed. If this input signal is added to the pure carrier wave, it will thereby change the frequency of the carrier wave. In fact, any strategy that combines an input signal with a carrier wave to encode speech or other useful information is called a modulation scheme.

Voice modulation is one of the most powerful weapons that you can have in your arsenal while delivering a speech. Not only does it reflect confidence but it also helps in convincing your audience about your beliefs or ideas. This is the power that voice modulation commands over people!

Shows confidence. Speech becomes interesting. Allows speaker to stress/draw the attention of a listener. Brings clarity in Communication.

If you modulate your voice or a sound, you change or vary its loudness, pitch, or tone in order to create a particular effect. asked a well-modulated voice. 2. verb. To modulate an activity or process means to alter it so that it is more suitable for a particular situation.

Without voice modulation, you would speak in a continuous, monotonous pitch or tone. We use voice modulation in our daily conversation as well, but the problem is that when we get up in front of an audience, stage fright dries up our throat and makes it hard for us to effectively use our tone and pitch.

Let’s find out:

1. Be Loud and Clear. Being loud does’t mean that you have to shout.
2. Practise Variation. You can look up for some steps that you can practise in order to develop the desired voice.
3. Stress on Powerful Words.
4. Create a Crowd Pleasing Speech.
5. Effective Pauses.
6. Avoid Ahs and Uhms.
7. Sound Enthusiastic and Confident.

As its name suggests, the term vocal variety relates to the way you speak and can be broken down into several elements including:

• Volume (Loudness)
• Pitch (Rise and Fall)
• Pace (Rate)
• Pause (Silence)
• Resonance (Timbre)
• Intonation.

There are five elements of voice: diction, detail, imagery, syntax, tone.

Elements of Voice Quality: Perceptual, Acoustic, and Physiologic Aspects.