Audio data coming in from a cd is contained in sectors each sector being 2 352 bytes and with 75 sectors containing 1 second of audio.
Vinyl vs cd sample rate.
Using the nyquist shannon sampling theorem we know that a sample rate that provides two samples per period is sufficient to reproduce a signal in this case your music.
The table below lists the sampling rate and the accuracy for cd recordings and the maximum sampling rate and accuracy for dvd recordings.
The audio bit rate for a red book audio cd is 1 411 200 bits per second 1 411 kbit s or 176 400 bytes per second.
I m sure you will hear the difference when playing back the files.
1 bit values at a sample rate of 2 884 mhz which is 64 times the 44 1 khz sample rate used by cd.
The sampling rate for cds is 44 1khz meaning that cd recordings sample the master recording 44 100 times a second and can capture frequencies as high as 20 khz.
Cds can also hold 74 minutes of music.
A sample rate of 22 khz will generate 22000 measuring points within a second 44 1 khz creates 44100 points and so on.
High resolution audio files have a sampling frequency of 96 khz 24 bit which is significantly higher than the 44 1 khz 16 bit sampling frequency of cds.
Cds and vinyl records are both audio storage and playback formats based on rotating discs from different times in music history the cd audio is digitally encoded and read by a laser while analog vinyl audio is physically read by a needle.
Using this technique the audio data is stored as a sequence of fixed amplitude i e.
Production studios for large entertainment companies made the switch to digital and realized that the new format afforded new ways to edit music.
2 channels 44 100 samples per second per channel 16 bits per sample.
However some started to take it a little too far and it wound up being known as the.
At any point in time the amplitude of the original analog signal is represented by the relative preponderance of 1 s over 0 s in the data stream.
By lowering either the sampling rate or the accuracy dvds can hold more music.
2 x 22 000 44 000 or just under the 44 100 samples per second offered by a 44 1khz sample rate anything above that number is not going to offer you much improvement because you simply can t hear the frequencies that an.
Dvds can hold 74 minutes of music at their highest quality level.
The rest of it dates back to sometime in the 1990s when the cd all but killed off vinyl in the first place.
Comparing compact discs cds to vinyl or gramophone records is the musical equivalent of comparing digital photography with film photography.
