User manual NERO MP3 PLUG-IN

[. . . ] MP3/mp3PRO plug-in How you can make an audio CD from mp3 or mp3PRO files. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 The mp3PRO encoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 How you can make your own mp3PRO files with Nero . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 How you can make your own MP3 files with Nero . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 How you can make an audio CD from mp3 or mp3PRO files Launch 'Nero' and the dialog for creating a new disk will appear. Select as disc type 'CD' and highlight the 'Audio CD' icon on the left and the appropriate tab ('index card') will open. The 'Audio CD' index card will be on top. Activate the 'Write CD TEXT on CD' check box if your recorder supports this function. [. . . ] The size of the loss depends very much on two factors. These are first, the quality of the psychoacoustic model used for data reduction and second, the bitrate of the mp3PRO file. Encoding quality: The quality of the psychoacoustic model with Nero is excellent. Naturally, a compromise needs to be found between the complexity of the model and the computing time needed. Depending on the intended application of the mp3PRO file, the quality of the encoding (i. e. of the acoustic model) can be set at 'fast', 'medium' and 'highest'. With the highest quality, encoding takes place at approx. three minutes of music will be encoded in three minutes. At the 'fast' setting (and with the same hardware), encoding can take place at up to eight times the normal speed. The sound quality is already very good with the 'fast' setting and completely satisfactory for most applications. Bitrate: 'Bitrate' means the number of bits stored per second in the mp3 file. The higher this is, the smaller the amount of information that has to be removed from the original sound file. Therefore the higher the bitrate, the better the sound quality. Of course, the price paid for this sound quality is a larger file. The mp3PRO file format lets you encode at either a constant or a variable bitrate (VBR). Select the option you prefer and specify the bitrate. Constant bitrate: A bitrate of 64 KB per second has proved itself to be a fairly good compromise between sound quality and file size. At this bitrate, audio files, very roughly speaking, are compressed by somewhat more than a factor of 20. These recognize defective sections of the file (which may have arisen from incorrect data transfer from the Internet, etc. ). However, many decoders ignore this checksum information, while others reproduce a defective mp3PRO section as silence, in order to avoid sound interference in a defective part of the file. The mp3PRO file will be very slightly larger if this option is chosen. Allow intensity stereo coding: Setting this option permits the use of a special type of that only saves directional information and volume for high frequencies. This option should normally be activated. Allow Downmix: This option makes it possible to 'downmix' the input signal from stereo to mono. [. . . ] Depending on the intended application of the MP3 file, the quality of the encoding (i. e. of the acoustic model) can be set at 'fast', 'medium' and 'highest'. With the highest quality, encoding takes place at approx. three minutes of music will be encoded in three minutes. [. . . ]