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LESSON 3 SUMMER 2016 PAYER

WINDOWS MEDIA PLAYER RIP CD STORE WRITE CD PLAY MUSIC CD

1 AUDIO FILE SYSTEMS

The human ear has, at its best, a frequency range from 20 Hz to 20,000 Hz. Typically, the frequency response drops to approximately 10,000 Hz by age 50. Dogs have a frequency range from about 20 Hz to 40,000 Hz, more than twice the human range.

The Nyquist Theorem states to reliably reproduce an analog signal, the signal must be sampled at twice the signal frequency, therefore the number of samples per second is 40,000 for sounds that humans can hear. (Some can hear even higher so the spec goes up to over 21,000)

The used for audio CD's that are readable by CD players is the CDFS based on the Red Book audio specification developed by Sony and Philips in the early 1980's. The file extension for this type file is CDA. If you view an audio CD with Windows explorer properties you will see that it has no space used and no space available.

A CD based on this specification contains uncompressed data representing audio signal. To create the CD the audio is sampled 44,100 times per second.

Data is collected in 2 samples for each of two stereo channels. One minute of audio data in this format is approximately 32.5 MB.

There are several file types that contain compressed audio. WAV and MP3 are examples of compressed audio formats. One minute of audio in Waveform Audio Format (WAV) format is typically 2.3 MB in size. WAV is what is known as a technique. The information that is lost usually does not reduce the quality of the reproduced sound.

The commonality is that both audio CDs and WAV files have the audio data encoded in PCM. WAV is a data file format for a computer to use that cannot be understood by CD players directly. To record WAV files to an Audio CD, the file headers must be stripped and the remaining PCM data must be decompressed before it is written to the CD. In order for a WAV file to be able to be burned to a CD with most burners it should be in the 44,100 Hz, 16-bit stereo format.

2 OPEN FIND THE WINDOWS MEDIA PLAYER IN THE TASK BAR OR IN THE – IT LOOKS LIKE THIS:

THIS WILL BRING UP THE FOLLOWING SCREEN:

NOW INSERT THE CD WITH SONG INTO THE CD PLAYER

3 You may see the following screen:

SWITCH TO LIBRARY

And hear music playing.

You can continue to play the music, stop playing or rip the song from the CD. To rip the songs from the CD, you must switch to another view. To do this, click on the three square dots and arrow in the upper right corner of the display below the X that closes the program. When you put the cursor on this location, a Switch to Library pop-up will appear.)

RIP

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To rip the song(s) click on the RIP CD button on the bar with the organize button.

While the song is being ripped, you will see a progress bar under the header “Rip Status.”

5 WHEN THE RIP PROCESS IS COMPLETE YOU WILL SEE THIS:

YOU ARE STILL EXECUTING UNDER THE RIP TAB. GO BACK TO THE LIBRARY:

NOTICE THE NAME OF THE SONG WAS LOST. RIGHT CLICK ON THE NAME FIELD:

6 NOW CLICK ON EDIT: TYPE IN THE NAME OF THE SONG:

NOW CREATE A PLAY LIST:

NAME THE COMPUTER CLASS:

7 NOW GO BACK TO LIBRARY AND ADD THE NEW SONG TO THE PLAYLIST; RIGHT CLICK ON HAT SONG, SELECT ADD TO COMPUTER CLASS AND THE SONG WILL BE ADDED TO THE PLAYLIST

VIEW THE PLAY LIST (CLICK ON IT)

THIS SHOWS THE PLAY LIST IS BEING EDITED AND THAT THE HAT SONG IS IN THE PLAY LIST.

REPEAT THE ABOVE PROCESS FOR TWO OR THREE ADDITIONAL SONGS. NEXT, SAVE THE PLAYLIST

DISPLAY THE COMPLETE PLAYLIST

8 YOU CAN BURN A COPY OF THE PLAYLIST TO THE CD: CLICK ON THE BURN TAB: SELECT ALL THE SONGS IN THE PLAYLIST AND DRAG THEM TO THE BURN LIST. (OR SELECT ALL SONGS AND RIGHT CLICK, THEN ADD TO BURN LIST)

NOW PUT THE BLANK CD INTO THE CD DRIVE AND CLICK ON START BURN (LOWER RIGHT)

WHEN THE BURN IS COMPLETE, THE CD WILL BE EJECTED.

The CD can be labeled with a felt tip marker. DO NOT USE A PAPER LABEL WITH ADHESIVE BACK. THIS WILL CAUSE THE CD TO BE UNBALANCED.

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