DIGITAL vs. ANALOG RECORDINGDigital recording/reproduction converts an analog sound signal picked up by a microphone into a digital form. The process that allows this to happen is called digitization. This allows the recording to be stored and transmitted through a wider variety of media. Digital recording stores audio as a series of binary numbers. These represent samples of the amplitude of the audio signal at equal time intervals. The sampling rate is high enough to transmit all sounds that can be heard. Digital recordings are of higher quality than analog recordings, because the digital format avoids a large loss of quality found in analog recording, due to noise and electromagnetic interference during playback. Mechanical deterioration and damage to the storage medium are also avoided. A digital audio signal must be converted back to analog form during playback before being applied to a speaker or headphones. Analog recordings rely on creating an exact copy of the sound wave pattern. Making more copies of the original recording may distort the pattern and add additional noise. Because a digital record consists only of numbers, it can be copied and corrected if necessary. This can be done several times, without any damage to the recording.SOUND RECORDINGA brief introduction and history behind the science of sound recordingWHAT IS SOUND RECORDING?Sound recording and reproduction are defined such as an electrical or mechanical inscription. It is a recreation of sound waves, whatever the source. The two main classes of sound recording technology are analog recording and digital recording. Since 1934, sound recordings (or phonograms) have been treated differently from musical works under copyright law. Copyright, designs...... middle of paper ...... the notes of bass musical instruments are about 100 vibrations per second while the high notes of tin flutes and whistles are about 1,000 vibrations per second. Bats use sound waves (echolocation) of up to 50,000 vibrations per second, but these are beyond human reach (ultrasound). The ability to quantify physical behaviors is essential to building a structured understanding of the system we use to record sounds, and mathematics makes it possible. The science of measuring atmospheric pressure and the speed of our recorded sound, and the physical and mechanical systems that use gases to transmit sound waves into electrical signals. Is involved. The science behind recording itself uses mathematics, physics, acoustics, electronics and, more recently, psychoacoustics, to explain how we translate the physical vibrations of the air into a musical sound that excites our emotions..