Apart from â€normalâ€ Wave-files, Feurio!Â® can also work with MP3-files.
The MP3-files can hereby be edited just the same as normal wave files, for example the level can be changed, a fade-in can be carried out, etc .
What are MP3-files?
MP3-files (more precisely: MPEG-1, Layer 3) are audio files packed with a special algorithm. An mp3-file only takes up a fraction of the memory space that the corresponding wave file would take up.
Attention should be paid to the fact that MP3 algorithms are â€loss-affectedâ€, i.e. data is lost in compression! However the algorithm is designed so that this loss should not be â€audibleâ€.
Conditions for editing MP3-files :
Feurio!Â® contains integrated routines for decoding mp3 files and thus has no problem working with mp3 files.
Working with mp3-files :
Feurio!Â® provides two possibilities to work with mp3 files:
- The files are included in the project as mp3-files and decoded during play-back/burning:
This mode has the great advantage that the files use up relatively little space. This however is also linked with several disadvantages:
-Increased calculation time needed in the Wave-Player:
As the data has to be decoded during playback, the wave-player thus needs must more calculation time. In particular the player does not work as quickly either.
-It may not be possible to write at high speeds:
Decoding while writing of course needs quite some calculation time - depending on the systemâ€™s performance it may not be possible to write at top speed.
-Track-Editor is slower:
As the data has to be newly decoded each time, of course the track editor is also much slower.
-Problems recognizing the mp3-structure:
To decode an mp3-file â€sequentiallyâ€ is relatively simple. To decode certain parts (as needed e.g. in the Wave player) is a much more complex matter. To create the CD structure Feurio!Â® also needs the precise playing time of the individual tracks (Otherwise there would be â€gapsâ€ at the end of the track).
Thus to be able to work with mp3 files completely, Feurio!Â® has to analyze the structure of the mp3 files.
Unfortunately there are often variations in the format so that it can happen that Feurio!Â® can not recognize the mp3 file and thus can not process it directly. In this case the file has to be decoded completely.
Feurio!Â® carries out a brief scan of every new mp3 file (among other things to determine the exact length).
After scanning Feurio!Â® sets up a file: â€File name.frameposâ€ . In this file information on the position of the mp3 frames is saved.
This file can be deleted at any time, when the mp3 file is next accessed, then the Framepos-file is newly created.
You should also be very careful with â€foreignâ€ mp3-files. It can happen that although the file can be recognized correctly, a decoding error occurs while burning. A decoding error of course leads to the burning being aborted and thus leads to a defective CD-R!
Note: The Feurio!Â® CD-Writer therefore offers you the option of decoding the mp3 file before burning it.
- The files are decoded on being added to the project:
The files are directly decoded on being added to the project, i.e. converted to normal wave files.
This however has the disadvantage that the files take up significantly more memory but then again they are â€normalâ€ Wave-files which you can work with normally so that the problems described above do not occur.
Creating mp3 files :
Unfortunately, the routines integrated in Feurio!Â® can only decode mp3 files.
However if the â€Professional Versionâ€ of an mp3 codec is installed in the system or the Lame or BladeEnd is installed, then Feurio!Â® can also create mp3 files.
Existing wav-files can be converted into mp3 or mp3 files can be created directly from CD!
On this, see >
Parameters - MP3 Parameters[/B]
This dialog box is used to set preferences for the CREATION of mp-3 files.
Feurio!Â® has got an integrated mp3-Codec to decode mp3-files so no further settings are necessary.
*Box: â€Creation of MP3-filesâ€:
Here you determine how MP3 files are to be created:
Â· Using Windows-Codec:
The files are compressed in a Codec linked into the Windows sound system.
The Fraunhofer Codec for example, requires the â€professional versionâ€.
Â·Using BladeEnc / Lame:
The files are compressed with the â€Blade-Encoderâ€ or â€Lame-Encoderâ€. BladeEnc is freely available on the Internet, for more information click here.
The button â€Preferencesâ€ is used to set the parameters for the Blade-Encoder.
Box: â€Adding MP3 filesâ€:
If MP3 files are added to the project from the Hard Disk View, these files can be automatically unpacked (on request):
All MP3 files are unpacked automatically, i.e. stored as â€normalâ€ wave files. This has the advantage that Feurio!Â® is able to access the files directly without first having to unpack them.
The problems described at â€Decoding MP3 Filesâ€ when accessing MP3 files directly are avoided as well.
The disadvantage of course is the space requirement of the wave files…
Â·Add file in MP3 format:
The files are added to the project as MP3 files. If the files are e.g. played or written on CD they will be automatically decoded.
This has the advantage of requiring much less hard disk space.
The disadvantage of this method is that decoding the files of course requires a lot of processing time. The wave player needs significantly more processing time, the track editor slows down and writing CDs with 4x speed will only be possible on very fast systems.
Furthermore errors can occur when accessing MP3 files directly (see: â€Decoding MP3 Filesâ€). If this should happen, please try to decode the file.
A MP3 file can be decoded later (within the menu: â€Project contentsâ€, entry: â€Decode file(s)â€ ) respectively within the context menu (clicking on a track with the right mouse button).
Each time a MP3 file is copied to the project a dialog box will pop up which asks if the MP3 files are to be decoded.
Note: This setting only refers to â€Adding MP3 files to the project from inside the Hard Disk Viewâ€. If you add files from inside the â€Add wave filesâ€ dialog, this mode is activated by a switch in the dialog box.
From: Feurio! CD-Writer online help © by Fangmeier Systemprogrammierung