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MP3 Tutorial by Steve Dalton
(Presented at the December 2008 meeting of the Oak Point Computer Club)
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TUTORIAL |
To encode mp3 files is more complicated than playing them back, since it involves 2 discrete stages:
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1. getting audio onto your computer into an accepted digital audio format
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2. converting digital audio to mp3 format.
If you have a CD you wish to convert to mp3 format, you will need "CD ripper" software.
Amid the confusion of this technological revolution we can't afford to lose track of what's legal and what's not. Record companies are serving papers to individual audio pirates left and right (record companies also still sue other companies, don't forget). Luckily for those who create their own music, the laws are quite simple.
You have every right to encode your own composition to .mp3 format and distribute it on the Internet. Just make sure that you solely own the rights and permissions to the composition.
It is also legal to encode MP3s of music that you've bought for personal use for home listening, but it's illegal to give anyone copies. Do not upload such MP3s to a publically accessible webserver.
For answers to further questions about the MP3 technology, piracy, and copyright infringement, read MP3: Ethical and Legal Issues on Webmonkey. For discussion of formats and technical issues, join the Technology mailing list.
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Comparison Chart - MP3 Players |
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MP3 player and price* |
Internal memory |
Connection, battery |
Formats supported |
System compatibility, warranty, other features |
Apple iPod nano8 GB, *Est. $200
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8 GB |
USB 2.0 cable (included), built-in rechargeable lithium battery, dock adapter. |
MP3, AAC (proprietary), WAV, AIFF, JPEG, MPEG4 |
Mac or PC; PC
must use Windows Vista or XP Home or Professional with Service Pack 2 or
later. Both must have a built-in USB 2.0 port. |
Creative Zen V Plus4 GB, *Est. $90
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4 GB |
USB 2.0, Li-ion battery |
MP3, WMA, IMA ADPCM, WMA DRM |
PC only. |
iRiver Clix8 GB, *Est. $230
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8 GB |
USB 2.0 cable included, internal Li-poly rechargeable battery |
MPEG 1/2/2.5 Layer 3 (MP3), WMA, ASF, OGG, MPEG-4 (QVGA, 15fps), Macromedia Flash Player, TXT, nonprogressive JPEG |
Requires
Windows Media Player v. 10+. |
Apple iPod classic80 GB, *Est. $245
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80 GB |
USB 2.0 cable included, built-in rechargeable lithium battery |
MP3, AAC (proprietary), WAV, AIFF, Audible.com (text), JPEG, GIF, BMP, PNG, MPEG-4 (video), H.264 (video) |
Mac or PC; PC
must use Windows Vista or Windows XP Home or Professional with Service
Pack 2 or later and have a USB 2.0 port. |
Microsoft Zune80 GB, *Est. $250
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80 GB |
USB 2.0, Li-ion battery |
AAC (unprotected), MP3, WMA, JPEG. MPEG4, WMV |
PC only,
Microsoft Windows Vista Premium or Ultimate. |
Samsung YP-U32 GB, *Est. $70
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2 GB |
USB 2.0, Li-ion battery |
MP3, WAV, WMA |
PC only,
Microsoft Windows XP, Microsoft Windows Vista. |
CD ripper
From Wikipedia, the free encyclopedia
Jump to: navigation, search
A CD ripper, CD grabber or CD extractor is a piece of software designed to extract or "rip" raw digital audio (in format commonly called CDDA) from a compact disc to a file or other output
Introduction
ripperX for GNU/Linux
As an intermediate step, some ripping programs save the extracted audio in a lossless (but possibly compressed format) such as WAV, FLAC, or even raw PCM audio.
The extracted audio can then be encoded with a lossy codec like MP3, Vorbis, WMA or AAC. The encoded files are more compact and are suitable for playback on digital audio players. They may also be played back in a media player program on a computer.
Most ripping programs will assist in tagging the encoded files with metadata. The MP3 file format, for example, allows tags with title, artist, album and track number information. Some will try to identify the disc being ripped by looking up network services like AMG's LASSO, FreeDB, Gracenote’s CDDB, GD3 [1] or MusicBrainz, or attempt text extraction if CD-Text has been stored.
Some all-in-one ripping programs can simplify the entire process by ripping and burning the audio to disc in one step, possibly re-encoding the audio on-the-fly in the process.
Mac OS
Windows
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Exact Audio Copy (EAC)
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Ripstation Micro Freeware [3]
Sample Screen using Windows media player to RIP CD
Sample Screen using Itunes to RIP CD
Sample Screen using Nero Express to RIP CD
The Audio CD can be automatically identified with Gracenote MusicID. So called metadata such as title, genre, and track title are accessed by the Gracenote Media Database and associated to the tracks. That way you have audio files that are accurately and fully named after the encoding process.
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Music recognition technology and related data are provided by Gracenote. Gracenote is the industry standard in music recognition technology and related content delivery. For more information, please visit www.gracenote.com. |
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Audio files from copy-protected Audio CDs cannot be saved. |