Leire and Daniela: 2016

miércoles, 11 de mayo de 2016

digital sound vs analog sounds

WHAT IS BETTER DIGITAL OR ANALOG SOUND?

this topic has been hotly debated and still there is no winner

because it's a matter of personal preference.

Each sides claims its chosen format is superior

and the opposite is rubbish.So is there really a difference?

To compare digital and analog sound, you need to look at a variety of factors.

Sample rate. In analog recordings, the machine is always recording any sound or noise that is coming through the microphones. In digital recording, however, you don't have a constant recording of what's going on. Instead, you have a series of samples taken from the sound being recorded.

Bits. By increasing the number of bits contained in the file, the amount of detail contained in each sample is increased.

Bit rate. Digital music files are measured in the amount of information they play per second. In most cases, it's measured in Kbps, or kilobits per second. This is the amount of sound information presented to the listener every second. The standard for near-CD quality is 128 Kbps, and some files go up to 320 Kbps. On the other hand, files played over Internet radio are 56 or 64 Kbps to allow faster transport over networks, like your dial-up or broadband Internet connection.

WHAT IS DIGITAL SOUND?

A sequence of discrete samples taken from a continuous sound waveform.Tens of thousands of samples are taken each second. Each sample represents the intensity of the sound pressure wave at that instant. Apart from the sampling frequency,
the other parameter is the digital encoding of each sample including the number of bits used.

Digital audio is typically created by taking 16-bit samples over a spectrum of 44.1
thousand cycles per second (kHz),this means that CD quality sound requires 1.4 million bits of data per second. Digital telephone systems use lowersample rates.

digital sound is measure with a lever meter;

WHAT IS ANALOG SOUND?

Recording audio in a format of continuous vibrations that are analogous to the original sound waves.
Before audio recording became digital, sounds were "carved" into vinyl records or written to tape as magnetic waveforms. Contrast with digital sounds.