槽 Changes in version 4.00f 鄄
槽 鄄
槽 New features 鄄
槽 o Batch processor: two new plugins: Fade-in and 鄄
槽 Fade-out. The Fade-out plugin is a two-pass plugin 鄄
槽 because it needs to find the file length prior applying 鄄
槽 the fade-out (since a plugin in a process chain can 鄄
槽 change the file length during processing (eg. 鄄
槽 Resampler), a file length is "unknown" to a plugin 鄄
槽 before this one actually gets and count the samples). 鄄
槽 鄄
槽 o MP3: WaveLab can now decode MP3-PRO files. 鄄
槽 鄄
槽 o MP3: Aside the creation of MP3 files using the Lame 鄄
槽 encoder, WaveLab can now create Fraunhofer MP3 files and 鄄
槽 Fraunhofer MP3-PRO files. The latest Fraunhofer MP3 鄄
槽 technology is used. Note: all MP3 players are not yet 鄄
槽 compatible with the MP3-PRO format (a typical case being 鄄
槽 the audio played at the wrong pitch). 鄄
槽 鄄
槽 Concerning the new MP3 encoding parameters: 鄄
槽 鄄
槽 o In the constant bit rate list, there are these 鄄
槽 options: mono, stereo, dual-mono, LC stereo. 鄄
槽 鄄
槽 o Dual-mono: in this mode, both channels are 鄄
槽 independently coded; no profit is taken of a 鄄
槽 potentially existing correlation between both channels. 鄄
槽 This mode is best suited for signals where the 鄄
槽 channels are independent (e.g. a bilingual source: 鄄
槽 English left, French right). 鄄
槽 鄄
槽 o Stereo: in this mode the encoder is allowed to make use 鄄
槽 of existing correlation between the two channels (better 鄄
槽 compression ratio for stereo recordings) 鄄
槽 鄄
槽 o LC stereo: the MP3 PRO format adds the so called 鄄
槽 Low-Complexity Stereo technique to the plain MP3 鄄
槽 format: this feature is designed to allow stereo coding 鄄
槽 even at extremly low bitrates. 鄄
槽 鄄
槽 o In the advanced parameters, stereo coding area: 鄄
槽 鄄
槽 o Intensity Stereo: while at lower frequencies the 鄄
槽 spatial perception of the human auditory system relies 鄄
槽 on magnitude and phase of both stereo signals, at higher 鄄
槽 frequencies only the energy-time envelopes are 鄄
槽 evaluated. This forms the basis for Intensity Stereo 鄄
槽 coding: at higher frequencies, only directional and 鄄
槽 magnitude information is coded for each frequency band. 鄄
槽 鄄
槽 o Mid/Side stereo codding: the sum and the difference of 鄄
槽 the left and the right channel are coded. Usually coding 鄄
槽 of the difference signal needs only a fraction of the 鄄
槽 bits used on the sum channel so more than half the 鄄
槽 frame's bits can be spent on the sum channel. 鄄
槽 鄄
槽 o Image stereo narrowing: usually, you should allow the 鄄
槽 encoder to narrow the stereo image for the lower 鄄
槽 bitrates. However, in special cases, it might be 鄄
槽 useful to disallow narrowing the stereo image. 鄄
槽 鄄
槽 o Audio CD Burning: WaveLab now checks the presence of 鄄
槽 a blank CD in the burning device, before attempting 鄄
槽 to render the montage to a temporary file. 鄄
槽 鄄
槽 o Audio CD Report: there is a new preset with times 鄄
槽 relative to the very start of the CD plus 150 frames. 鄄
槽 鄄
槽 o Basic Audio CD and Audio Montage: the "ASCII CD 鄄
槽 report" that was present in WaveLab 3.0 has been 鄄
槽 reintroduced. This function was replaced in WaveLab 4.0 鄄
槽 by a more sophisticated report (RTF output), but some 鄄
槽 users have expressed the wish to still have a plain 鄄
槽 ASCII report. Of course, the WaveLab 4.0 Audio CD report 鄄
槽 (RTF) has not been removed. "ASCII CD report" templates 鄄
槽 are stored at this location: 鄄
槽 [WaveLab]/Presets/AudioCdReport/CdCueSheetTemplates/. 鄄
槽 鄄
槽 o Basic Audio CD: longer comments can be set. 鄄
槽 鄄
槽 o Audio file comparer: when creating a delta file 鄄
槽 (differences), this file now has a 32 bit float 鄄
槽 resolution (24 bit before). 鄄