The use of microelectronics has reduced the cost of digital techniques and now makes digital methods feasible and cost-effective such as in the field of human-machine communication by voice. [7] The main differences between analogue and digital electronics are Noise Because of the way information is encoded in
Advantages and Disadvantages of AM, FM, PM, and QAM There are several forms of modulating signals and each form have advantages and disadvantages. There are amplitude modulation, frequency modulation, phase modulation, and Quadrature Amplitude Modulation. While some have better qualities than others, each form of signal modulation has a purpose. Amplitude Modulation Amplitude modulation, also known as AM, is the oldest form of modulation and is usually used for broadcasting radio transmissions and the use of two-way radios. Some of the benefits of amplitude modulation are that it is simple to implement, it takes few components to demodulate it while using a circuit, and receivers are cheap to purchase and to use.
Explain in 1-2 sentences. (1.0 points) I would use digital because ONE I could re-record something if I had to and not worry about wasting recording tape and be able to get the sound I want perfect and not having to settle with the first recording I do. And second I would be able to edit my recording a lot easier and be able to use more editing tools on a digital recording than on a analog
Another way is to change the brightness by adjusting the power supply. Also the distance between the bulb and the LDR is another method, if the distance is bigger, the less bright it would be. If the distance is less/smaller, the denser it will be. We could also use different bulbs and power supply, with a higher voltage and energy, the higher the voltage, the brighter the light bulb. But this may be hard, as we might not have many different power supplies or bulbs.
Impulse noise; is heard as a click or a crackling noise and can last as long as 1/100 of a second. Cross-talk noise; occurs when one circuit picks up signals in another circuit. Inter-modulation noise; is a special type of cross talk. The signals from two circuits combine to form a new signal that falls into a frequency band reserved for another signal. This type of noise is similar to harmonics in music.
Sound travels faster through warm air than cold air because the molecules in warm air vibrate faster. Resonance is when one object vibrating at the same natural frequency of a second object forces that second object into vibrational motion which is forced vibration. An example would be if two tuning forks with the same natural frequency are set across from each other, then one tuning fork is hit with a rubber mallet which causes them both to vibrate because the surrounding air particles are set into vibratinoal motion. Frequency is the number of waves that pass a fixed place in a given amount of time. Picture: When a tuning fork is stamped 440 HZ means that the frequency and the pitch of that fork is 440 HZ.
Right up to the recent technological advances which have made sound amplification more efficient and less expensive. My primary aims for this project are to both understand the differences in how sound is amplified and how different physical layouts and arrangements affect sound quality in different environments. Some of the reasons I chose this subject include the fact that I am currently performing regularly, in a local group which relies on these technologies. Because of this I have developed a personal interest in the differences in methods for sound amplification and reproduction. I believe a better understanding of the varying methods will ultimately lead to an improved ability to set up more efficient and more specific amplification systems.
These power plants produce no pollution (Alexander 1). All of the waste that is created can either be stored away or reused (Epstein 2). There are no smokestacks being spewed into the air, which means that we are not able to breathe in any oxides that may be produced (Alexander 1). The way nuclear energy is being processed is through a process called nuclear fission (Alexander 1). Nuclear fission produces no greenhouse emissions (Alexander 1).
Today, synthetic plastics are everywhere. They are just as familiar to us as wood or metal, and as easily taken for granted. Properties/Uses: Bakelite can be molded - and in this regard was better than celluloid and also less expensive to make. Moreover, it could be molded very quickly - an enormous advantage in mass production processes where many identical units were produced one after the other. Bakelite is a thermosetting resin - that is, once molded, it retains its shape even if heated or subjected to various solvents.
There are distinct advantages to both and their uses depend on the task at hand. Both are still in use today with digital being more prevalent because of large amounts of data that it can easily transmit over great distances. Both of these two communication mediums are not going away anytime soon and each has a place in today’s networking community. Analog-to-digital and digital-to-analog conversions in telecommunications Analog signal is one that increases or decreases in nature due to the fluctuations of the item being transmitted. This can be compared to the highs and lows of a radio signal in which the analog signal will rise and drop based on the radio signal being transmitted.