Basic principles of audio recording Insert name (s) Course Q.1. dynamics of an electronic sound amplifying system A.1.What does the levels at +28dBu, +4dBu and -85dBu indicate and what is the name given to these 3 levels?…
Download full paperFile format: .doc, available for editing
Download file to see previous pages
+4dBu is generally found in professional level equipment such as public address systems. Finally, -85dBu indicates the level of noise floor (residual electronic noise) in the sound amplifying system. Noise floor is the measure of the lowest audible sound that can be amplified by the system. Collectively, the three levels are known as the operating line levels of an audio system (Glenn, 1998, p.731). A.2. What do the ranges of 24 dB, 89 dB and 109 dB indicate? Explain the function that each of these ranges has in an audio system? (9 marks) The range 24dB in the diagram indicates the headroom of the sound system (peak level- nominal level) = +28dBu-(+4dBu) =24dBu. According to Rossing (2002, p.168), the main function of this range is to describe the capacity of the sound amplifying system to handle loud sound peaks. For example, a sound system with a larger headroom range is often able to handle significantly louder sound peaks before the sound is distorted or broken. On the other hand, 89 dB range shown in the diagram indicates the S/N ratio (Signal to Noise ratio) of the sound amplifying system. Generally, S/N ratio refers to the difference between the nominal level of the sound system and the noise floor. When the S/N ratio is combined with the headroom, the result is known as the dynamic range assuming that there is no signal below the noise floor in the sound amplifying system (Borwick, 1980, p.45). ...
gard, the dynamic range of the system function as the indicator of the difference between the electro-acoustic noise floor and the peak output level of the audio system. B. Why does the graphic refer to two different kinds of dB? Explain both types extensively using formulas for both types too. (15marks). The graphic diagram refers to the two types of dB namely the dB (SPL) and dBu scales. With regard to the dB (SPL), the primary variable measured is the sound pressure level in the audio system. This kind of dB is achieved by measuring the ratio amplified input signals using the logarithmic formula: 10 log (P2/P1) dB where the log is assumed to base 10. (Rossing , Moore , Wheeler, 2002, p.87). The other type of dB used in the diagram is dBu which generally indicates the output of the sound amplifying system (amplitude ratios). dBu is the unit measure of the absolute value of the electrical potential of the system in volts (relative to the sound produced). The formula for this kind of dB is: 20 log10 (V/ V0) = 20 log10 (V/ 0.7746), where voltage is measured using root mean square (Glenn, 1998, p.851). ` C. About the values showed above, would you considered this to be a professional system or only a home-made-like system (e.g. cassette or vinyl) based)? Explain your choice. (5marks). According to the values given in the diagram, the system illustrated is most likely to be a professional system. For example, headroom of 24dB is capable of ensuring high fidelity sound that is only found in the professional sound amplification systems which are often comparatively more sophisticated than the normal homemade systems like those using vinyl and cassettes. Additionally, the large dynamic range indicated in the diagram is a likely suggestion that the system has a high
...Download file to see next pagesRead More
Cite this document
(“Music Technology Coursework Example | Topics and Well Written Essays - 1000 words”, n.d.)
Music Technology Coursework Example | Topics and Well Written Essays - 1000 words. Retrieved from https://studentshare.org/mathematics/1454002-music-technology
(Music Technology Coursework Example | Topics and Well Written Essays - 1000 Words)
Music Technology Coursework Example | Topics and Well Written Essays - 1000 Words. https://studentshare.org/mathematics/1454002-music-technology.
“Music Technology Coursework Example | Topics and Well Written Essays - 1000 Words”, n.d. https://studentshare.org/mathematics/1454002-music-technology.
This paper talks that before the world war disrupted live performance, it was organized mainly in three types of venues. The very first was the music hall. The music hall was not only a venue for performance but also an important commercial place and social gathering. Secondly, there is the dancehall circuit.
Fair Trade makes a powerful case for how innovation brings forth a model that shifts innovative practices that were unthinkable before. This organization has transformed an innovative idea on how to help producers in developing countries make better trading conditions and promote sustainability.
Initial Data collection
Three people contacted to represent the three groups of users of the website. One of the people contacted was a representative of West Music Recording Corporation. Interviews were carried out with each person to establish their requirements and desire of how the site should look like.
The basic idea behind reality TV is the creation of a real life environment for people to carry out an activity when being filming. Most of the activities are competitive in nature. As opposed to scripted shows, reality TV thrives on the spontaneity of the participants.
The project will be sponsored by the National Health Services, or any other such organisations, as part of their antismoking campaign in the UK. This will be a test project and, based on its success in eliciting public response, similar artefacts will be introduced in other parts of the country as well.
This paper discusses how information technology is still at the stage where it is developing after its advent a few decades ago in the form of computer-aided drafting and modeling. Where is the revolution then? It is argued that despite its early manifestations, information technology promises to become a revolutionary, rather than evolutionary development for the profession and practice of architecture.
Music during the Baroque Period has gone through a continuous evolution. The period has been divided into the Early, the Middle and the Late Baroque Periods for easier study of the development through these ages. A similar analysis is also done on the architectural evolution as well.
This new wave of music which was stated to be 'hip-hop' has definitely taken America by storm without question. Many claim that this form of artistic music represents newer generations of people with changing attitudes and diverse ways of looking at life that are greatly varied compared to back in the 50's.