In this presentation I will be looking at data types and how they can be used and represented.
I will be looking at the following data types
Text is represented in what is known as ASCII (american standard for code for information interchange)
1 character in ASCII is the equivalent to 1 bytes or 8 bits
ASCII is coding system for letters and numbers. Each character has its own number for example the ASCII code for A is 097, A In binary is 01100001 we can work out the ASCII code by using its binary number
128 64 32 16 8 4 2 1
0 1 1 0 0 0 0 1 64+32+1=97, This is the ASCII code for A
Number is represented using the hexadecimal system. This system is a way to condense binary into smaller and more easy to work with pieces. There for every number has a hexadecimal code. The hexadecimal code for 589 is 24D. By doing this large numbers are
…show more content…
Because a video is just a string of images its bit depth and pixels are exactly the same as images.
All audio is recorded is analogue and needs to be converted to digital. In order to do this a technique known as sampling is used. Here is a picture of how sampling works. The red line is the original analogue audio. The gray blocks are each sample of the audio. The more samples there are the higher quality or more true to the original it will be.
Audio sampling will always create a drop in quality. The closer together the sampling is the more it represents the original analogue sound. Also the more levels you have the less “error” there will be.
However even though a low sample rate will reduce quality, the higher the sample rate the bigger the file size will be. This means companies can only reach a certain sample rate to put it on a CD before the file size gets too big, an average CD only has 700MB of usable space. Therefore you need to be able to strike a happy balance between quality and
Out of a total from 26 sequences only 6 were made up of 4‘s while 20 were composed of different structures of 2‘s. This tells us that 77% of the asci showed crossing over while 23% did not.
You might not realize it but this is true. It is also true that singers use their voice in order to perform while recording their song. You would say, why use electronic music if you could just record your voice and the instruments? The main difference is that the “raw” voice and instruments would sound bad when they are freshly recorded. Even if you record it with the most expensive microphone, you would still end up with a recording that doesn’t sound like most of the hits you hear on the radio or any other platform. This is because your recording is not what is called “processed” with modern audio tools. There are many tools that will greatly improve the sound of your song. It’s generally really good to know the basics of these tools. This knowledge would be good for any work with any audio. For example you could use this knowledge to fix the audio in a film or a small video that you made. It’s doesn’t take a long time to comprehend these basic tools. They will allow you to increase the quality of any audio that you are working
composes computerized information into 53-byte cell units and transmits them more than a physical medium utilizing advanced sign
Digital and Analog recording which both were foreign to me, I now have a better understanding of them both now. To help me understand them I use this saying “digital data" which means that a digital recording deals with data and "analog acoustic" and analog deals with recording acoustic recording into an electric sound. The more data on a digital recording the more data you have about the actual sound that was recorded. The digital recordings you can change whatever you want about them because they are dealing with data. Then the acoustic recording seems as if you are transferring the acoustic sound to an electric sound. The understanding that I have of an analog recording is it is the exact replica of what was previously recorded. There is not much you can do to change it.
It is expressed as a dotted decimal number format to make it easier for human beings and the computer to remember.
4. (TCO 2) If a variable holds the value 12345, what is its data type?
A bit is a single number or a single value which can be either 0 or 1 and this value is represent the digital information. A byte is a sequence of bits; like a sequence of digital information, usually eight bits equals to one byte.
Char type is so useful. Char are the values type. This means they are located in the bytes and bites on the evaluation stack. You can get single char from a string variable. Char another data type that is useful to programmers.
Oversampling: Sampling the input signal at a frequency much greater than the Nyquist frequency. Oversampling decreases the quantization noise in the band of interest.
1. Consider the right most digit of the message to be in an "Odd" position, and assign odd/even
A Class C address has a first octet decimal range of ____ to _____. D
Audio compression technique is increasingly becomes more significant in multimedia applications, since it produce extensively reduced bit rate than the original signal, the bandwidth , storage space and expense for the transmission of audio signal is also reduced correspondingly.
In the recording session, listening to all the tracks, I chose two different microphones from the MXL 800 series- the large and the small caps diaphragm. Both microphones were condenser microphones. Listening to both microphones at the track I discovered few interesting facts between them. First, I mange to listen to the smaller cap both on the recorded hammer part of the piano and the recorded strings and I find that both microphone had different sound. For the small cap that was recorded on the hammer of the piano sound decent yet it sounded little muddy. It sounded like when it had an insert plug-in of a chorus or modulation that when the key was stroked the sound was aggressively vibrating, the piano’s sustain was little aggressive- Picturing if there was a lot of sound waves combined together. Also it sounded as if the piano was played in a small room which the sound sounded much tied. Next, the smaller cap on string recording, sounded much more balanced. It sounded tied yet the every note on the piano sounded realistic. Moreover, the dynamic range was wide enough that it was easy to listen to especially it had good amount of bass and harmonics of the piano. The microphone sound more open rather than narrow sound like the hammered one.
The audios are of high quality so there is no need of worrying about quality
For example, the short form of a code might be "SS", with a description of "Stop sign"