Glossary of Terms Essay

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Glossary of terms: Digital audio: binary, MIDI message: sample rate; bit depth; digital levels; decibels; relative to full scale (dBfs); dither; aliasing; oversampling; error detection and correction digital devices e.g. sampler, effects processer, mixing consoles, interfaces, byte, date transfer rate Digital is processing numbers, which are 1 and 0. Positive is represented by1 and non-positive is 0. Each of these numbers is bit. Binary date is the numbers that represent digital. Byte is a string of bits that represent a number. A byte can be 4, 8, 16 bit. Another word for byte is word. Bit depth - Volume is related to bit depth. Analogue signal (waveform) is continues. Analogue sound is broken down into tiny bits of date. Dynamic range is the difference between the quietest point and the loudest point. On a table the up is amplitude and across is frequency. Quantization is when the amplitude is being snapped into position. Volume is measured in decibels. In order to get the decibels you times the bit by 6, example 16 bit x 6=96 decibels. On a 4 bit system in value is 16. Signal to noise ratio is the difference in volume between what you want to hear and what you can hear. Digital dynamic range is the volume range of a digital audio file goes from infinity (silence) up to zero (loudest). Sounds above zero distort or clip. Dynamic range is the available range of volume between the loudest and softest available sound. This is important because the greater the dynamic range the better the sound. Sample rate is related to frequency. 20 herds to 20 kilohertz the human hearing. Sample rate is how much voltage reading we are going to take in one second. The sample rate is how many lines there are drawn. Nyquest theorem states that the sample rate needs to be sampled twice the frequency. The more voltage reading you take the less you see the

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