Steinberg WaveLab Essential 6 Operation Manual
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41 Editing in the Wave window You can also press [Shift] and click in the Wave window to make a selection between the position of the wave cur- sor and the click position. Selecting in stereo files If you are working on stereo material you can select either channel or both so that you can apply an operation to one channel only or to the entire stereo material. Which chan- nel will be selected when you drag or [Shift]-click de- pends on where you position the mouse pointer, as indicated by the pointer shape: ÖTo select a single channel by [Shift]-clicking, you need to set the wave cursor in only one channel (by clicking in the upper or lower part of the wave) and then [Shift]-click in the same channel. Switching the selection between channels If you have made a selection, you can move this to the other channel or extend it to both channels by selecting the corresponding items from the Select submenu (on the Edit menu). Or, you can press [Tab] to move the selection between channels (if there is no selection, [Tab] moves the cursor between channels). Selection shortcuts There are a number of ways to quickly make certain selec- tions (for many options there is more than one method): Selecting in the Overview You can select in the Overview, just as in the Main view. To get the selection tool in the overview, hold down [Ctrl] and move the pointer into the overview. Extending and shrinking the selection Very often you will have made a selection only to find it isn’t completely perfect. In this case you can extend or shrink the selection. In fact you can very well use this as a method: make a coarse selection with a lower zoom factor, then zoom in and adjust the start and end in more detail. By dragging 1.Move the mouse pointer to the beginning or end of the selection. It turns into a double arrow. Position Pointer ShapeDescription Upper half of left channel Only the left channel will be selected. Middle area Both channels will be selected. Lower half of right channel Only the right channel will be selected. To select… You can… The area between two consec- utive markers Double click between them. Depending on the type of marker, use one of the last two options on the Select menu (on the Edit menu). The area between any two markers Double click between two markers, keep the mouse button pressed and drag left or right. The entire waveform If there are no markers, double click. Triple click. Press [Ctrl]-[A]. Select “All” from the Select menu on the Edit menu. From the cursor to the follow- ing or previous marker Select “From cursor to previous/next edge” from the Select menu (on the Edit menu). Hold down [Shift] and double click be- tween the cursor and the marker. From the cursor to the begin- ning or end of the file Select “From cursor to start/end of file” from the Select submenu (on the Edit menu). Hold down [Shift] and double click to the left/right of the cursor position. Press [Shift]+[Home] or [Shift]+[End]. All data between two start/end loop or region markers Hold down [Shift] and double click on either marker head. Click between the start/end region markers and select the type (loop or ge- neric region) from the Select menu on the Edit menu. Half or double the current se- lection length Select “Halve selection length” or “Dou- ble selection length” from the Select menu on the Edit menu. These options are useful if you are working with measures. What was previously selected Select “Toggle” from the Select menu on the Edit menu. Press [Esc]. To select… You can…
42 Editing in the Wave window 2.Press the mouse button and drag left/right. Dragging the end of the selection. Using [Shift] Hold down [Shift] and click outside (extend) or inside (shrink) the current selection. If you click inside the first half of the selection, this will change the start point, if you click inside the latter half, this will change the end point. Using the cursor keys If you hold down [Shift] and press the [←] or [→] keys, the start or end of the selection is moved one pixel (screen dot) to the left/right. If you also hold down [Ctrl] it is moved twenty pixels instead. If you hold down [Shift] and press [Page Up]/[Page Down], it will also move 20 pixels. If you hold down [Shift] and press the [Home]/[End] keys, the selection will extend from the current cursor position to the start/end of the file respectively. Which end of the selection you change depends on which end of the selection the cursor is closest to. Exactly how much one pixel represents depends on the zoom factor. If for example the zoom factor is “x1:64”, the cursor keys alone move 64 samples, and together with [Ctrl] they move 1280 samples. Using the Select menu The Select submenu (on the Edit menu) has a number of options for extending the selection to various points in the waveform. Moving the selection If the selection is the right length, but at the wrong posi- tion, you can move it: 1.Hold down [Ctrl] and [Shift]. 2.Point at the selection and drag left/right. Snapping to zero crossings About zero crossings If you cut out a portion of a wave and paste it in some- where else, chances are there will be a discontinuity where the two waves are joined. See the example below. This discontinuity will result in a transient in the wave when it is played back, which is perceived as a “click” or “bump” in the sound. To avoid this you need to make the splice at a zero cross- ing. A zero crossing is – a point where the wave crosses the zero level axis, the point where the wave is considered to have “zero level”. Furthermore we recommend that joins are made with the splice points of the two waves heading from opposite di- rections to the zero crossing. That is, one should be on its way up (below the zero level axis), and the other should be on its way down (above the zero level axis). WaveLab Essential can help! If you wish, WaveLab Essential can automatically search for zero crossings, and extend the selection “outwards” (make it bigger at both ends) so that it begins and ends at a zero crossing. Normally this will not be noted in the edit- ing precision (since there are usually hundreds or thou- sands of zero crossings per second), but it will help avoid “clicks” and “pops” and “bumps”. At this point, there will be a click in the sound, due to the discontinuity in the splice.
43 Editing in the Wave window But just making the selection start and end at zero cross- ings is not enough. When you actually perform the editing operation (cut and paste or dragging, for example) you need to make sure the material is inserted at a zero cross- ing. See “By dragging” on page 44. Setting up zero crossing detection 1.Pull down the Options menu and activate “Snap to zero crossing”. 2.Select Preferences from the Options menu. 3.Click on the Wave edit tab. 4.Fill out the “Snap to Zero crossing” options. Checking the effect of Snap to Zero crossing 1.Make sure that “Off at high zoom factor” is not activat- ed and zoom in until the zoom factor is 1:1. 2.Make a selection and observe how it is extended left and right. Snapping to time units When “Snap to time units” is activated on the Options menu, selections will automatically be extended to the left and right so that they start and end at whole time units (and also at the closest zero crossing, if that option is ac- tivated, see above). This allows you to easily make selec- tions spanning a certain number of seconds for example.The “time unit” mentioned depends on which type of scale is selected for the ruler: Using Magnetization If you have “Magnetize bounds” on the Options menu ac- tivated and create or adjust a selection, it will “snap” to the following positions (or to the zero crossing closest to the position, see above): The wave cursor. The start and end of the entire wave. “What are markers for?” on page 98). Level selections For some of WaveLab Essential’s level processing func- tions, it is useful to make a selection not only in time, but in level. By dragging 1.Make a regular “time” selection. 2.Hold down [Shift]. 3.Move the mouse to the top or bottom of the selection box. The pointer changes into a vertical double arrow. !Note that this means that you must drag across a certain “time area” (for example more than half a sec- ond) to get any selection at all. If you make a selec- tion like this… …it is automatically extended at both ends, to the closest zero crossings. Option Cursor moves to Time Closest whole second Samples Function not available Time code Closest frame Meter Closest whole beat File size Function not available
44 Editing in the Wave window 4.Press the mouse button and drag up/down. If you then extend the selection time-wise, the level selec- tion still remains the same. Extend to peaks To automatically set the level selection to the highest peak in the current selection, make a time selection as desired and select “Extend to peaks” from the Select submenu on the Edit menu. Basic editing commands Mono/stereo WaveLab Essential is totally flexible in its handling of ste- reo. All editing operations can be performed on either channel or both. Copying audio The following operations allow you to make copies of sec- tions of audio within the same file or from one file to an- other. By dragging 1.Decide whether you want to use “Snap to Zero cross- ing” (activated from the Options menu) for this operation. When this is activated, both the selection start and end as well as the drop position will always occur at zero crossings. See “Snapping to zero crossings” on page 42 for details. 2.Make a selection. 3.Point at the selection, press the mouse button and hold it down. 4.Drag to a position outside the selection (in the same file) or to another Wave window. When you have the cursor over a valid area, the pointer will turn into a single or double waveform (see below). The status bar will show the ex- act position at which the selection will be inserted. Make a regular selection, move the pointer to its top or bottom and hold down [Shift]… …drag up/down, and release the mouse button. !Please note that any existing markers (see “What are markers for?” on page 98) in the source audio sec- tion also will be copied. !Make sure you don’t drop on a selection in the desti- nation window, or you will perform a crossfade, see “Crossfade” on page 73.
45 Editing in the Wave window 5.Release the mouse button. The selection is inserted at the indicated point. The audio that previously began at that point is moved forward so that it is now played after the in- serted section. Using “Magnetize Bounds” If you have “Magnetize bounds” on the Options menu ac- tivated when you drag, the cursor will “snap” to the follow- ing positions: The wave cursor. The start and end of the entire wave. “What are markers for?” on page 98). Stereo/mono “conflicts” Stereo/mono is handled as follows when you drag be- tween files: Sample rate conflicts If you copy or move audio from one window to another, and the sample rates of the two files are not the same, the copied/moved sound will play back at the wrong pitch (speed). The program will warn you if this is about to hap- pen. While mixing sample rates can sometimes be used as an effect, it is most often not desired. There are two ways to get around this: Sample rate convert the source file to the same rate as the destination file before doing the editing. You might go back later and undo this conversion if necessary. Sample rate convert the destination file to the same rate as the source file before adding the audio to it. Please note that you are then partly “stuck” with this new sample rate, since rate converting back and forth too many times is not recom- mended, see “Convert sample rate” on page 79. By using Copy and Paste 1.Make a selection. 2.Select Copy from the Edit menu, press [Ctrl]-[C] or drag the selection onto the Copy icon on the Standard Commands control bar. 3.If you want to insert the audio, click once at some po- sition in the same file or in another file. The wave cursor appears at that point. 4.If you would rather replace a section of audio, select it. In this case, the position of the cursor is of no relevance. Make a selection, position the mouse pointer over it… …drag and drop… …the dragged section is inserted at the drop point. Dragged section“Drop” waveAction Stereo Stereo The dragged audio is always inserted into both channels. Stereo Mono Only the left channel is inserted. Mono Stereo What happens depends on the vertical position in the destination window at which the drop is made. This is indicated by the cursor shape (see “Selecting in stereo files” on page 41). The se- lection can be inserted into only one of the chan- nels, or the same material can be inserted into both channels.
46 Editing in the Wave window 5.Select Paste from the Edit menu or press [Ctrl]-[V]. The material you copied is either inserted at the indicated point (no se- lection) or it replaces the current selection (if you have a selection). Stereo/mono “conflicts” Stereo/mono is handled as follows when you paste: Moving audio The following commands allow you to rearrange the “or- der” of the audio in a file. By dragging This is just like drag copying (see above). The only differ- ence is that you hold down [Alt] and [Ctrl] while dragging to move audio. The material you dragged is removed from its original position and inserted where you drop it. By using Cut and Paste This is just like using Copy and Paste (you can for example drag the selection to the Cut symbol on the Standard Commands control bar – see above). The only difference is that when you select Cut, the audio is removed from the window. The material after the cut section will be moved to fill out the gap. By nudging The Nudge left/right tools in the Toolbox (also known as “Kicker tools”) can be used to move the audio in small steps within a file. 1.Make a selection. 2.Click on the selection with one of the Nudge tools (de- pending on the direction in which you want to move it). The audio is moved one pixel (screen dot). Exactly how much this is de- pends on how far you are zoomed in. If for example the status bar says x1:256, the selection will be moved 256 samples. Copied sectionPaste waveAction Stereo Stereo If the wave cursor extends across both chan- nels of the destination file, the material will be inserted into both channels. Stereo Stereo If the wave cursor is only in one channel, the Paste will only happen in that channel. Material from the left channel will be pasted in the left channel and vice versa. Make a selection, and select Copy… …click for an insertion point… …and select Paste. The copied section is inserted at the cursor po- sition.Stereo Mono Only the left channel is pasted. Mono Stereo What happens depends on whether the wave cursor is in one channel or both. The Paste can either happen in one of the channels, or the same material can be inserted into both chan- nels. !Please note that to completely undo a move between two files you must first undo the paste in the destina- tion window and then undo the cut in the source win- dow. Copied sectionPaste waveAction The Nudge tools
47 Editing in the Wave window ÖThe moved section “overwrites” the audio originally at that position. For example, when you nudge a selection to the right, silence will appear before the nudged section while audio to the right will be replaced by the nudged section. This is different from moving by dragging. ÖIf you nudge many times in a row and then undo, all the moves are undone in one go. Repeating an audio selection To repeat a section of audio, proceed as follows: 1.Make a selection, select Cut or Copy and place a new insertion point, just as when performing a normal Cut or Copy (see above). 2.Select “Multiple copies…” from the Paste Special submenu on the Edit menu. 3.In the dialog that appears, enter the number of copies you desire (up to 1000), and click OK. Other Paste operations On the Paste Special menu you will find some additional options: Overwrite This will overwrite data in the destination file, rather than moving data to make room for the inserted audio. The ac- tual amount that will be overwritten depends on the selec- tion in the destination file: If there is no selection in the destination file, a section with the same length as the pasted data will be overwrit- ten. If there is a selection, the pasted data will replace that selection, just as when making a regular paste. Append This will add the pasted audio after the end of the file, just as if you had placed the wave cursor there and selected Paste. Prepend This will add the pasted audio before the beginning of the file. Mix This will blend the two files into each other, starting at the selection (if you have one) or at the cursor position (if there is no selection). When you select the Paste Special – Mix option, a dia- log appears, allowing you to specify the desired gain for the audio on the clipboard and at the destination, respec- tively. A setting of 0 dB means the level will be unaffected. All the data on the clipboard is always mixed in, regard- less of the length of the selection. It doesn’t matter whether or not you have a selection in the destination file when you paste. Deleting selections Delete You can use the following methods to delete a selection of audio: Select Delete from the Edit menu. Click the Delete icon on the Standard Commands control bar. Press [Backspace] or [Delete]. Drag the selection to the Delete icon on the Standard Com- mands control bar. Trim To remove all the audio except the current selection, se- lect Trim from the Edit menu (or press [Ctrl]-[Backspace]). Silence The Silence function offers two different methods for in- serting silence: You can “insert” silence into a section, i.e. to space two sec- tions further apart. Or, you can select to “replace” a selection or time range with silence. Insert silence If you intend to insert silence, proceed as follows: 1.Make a selection that encompasses the range where you wish to insert the silence. 2.Select Insert Silence from the Edit menu or press [Ctrl]+[Shift]-[Space].
48 Editing in the Wave window Replace selection If you intend to replace a specific range with silence, pro- ceed as follows: 1.Make a selection that encompasses the range you wish to replace with silence. 2.Select Silence from the Edit menu or press [Ctrl]- [Space]. There are four ways to replace a section of audio with silence: Select it and select Silence from the Edit menu. Select it and click the Silence icon on the Standard Com- mands control bar. Select it and press [Ctrl]-[Space]. Select it and drag the selection to the Silence icon on the Standard Commands control bar. Turning selections into new documents If you want to turn a section of wave into a new document, proceed as follows. 1.Make a selection. 2.Drag the selection out of the window and onto an empty section of the WaveLab Essential application win- dow. The cursor turns into a “new document” icon. 3.Release the mouse button. The selection appears in a new window. You can also use this function to create stereo waves out of mono waves, see below. Converting from mono to stereo You may convert a mono file into a stereo file that contains the same material in both channels, for example for further processing into “real” stereo. 1.Make a selection. 2.Drag the selection out to the WaveLab Essential “desktop”. 3.When the pointer is outside the window, hold down [Ctrl] and release the mouse button. Converting from stereo to mono You may mix the two channels in a stereo file into a mono document. This can be done in two ways. Which method to use mainly depends on whether you want to convert the entire file or just a selection: By dragging 1.Make a stereo selection. 2.Drag the selection out to the WaveLab Essential “desktop”. 3.When the pointer is outside the window, hold down [Ctrl] and release the mouse button. By saving (converting an entire file) 1.Open the stereo file. 2.Select “Save as” from the File menu and click the Properties button at the bottom of the dialog to open the “Audio File Format” dialog. 3.Change the Channels setting to the “Mono (Mix)” op- tion, but leave the other settings as they are. You can of course change the other settings too, but this will have other effects, see “Saving in another format (Save as…)” on page 51. ÖThe other two “Mono (Mix)” options will also convert a stereo file to mono, but the amplitude of the resulting file will be attenuated by 3 or 6 dB respectively. Since the mixing of the two channels when converting a stereo file to mono might often result in the amplitude increasing to a point where clip- ping occurs, these two options can be useful to remedy such a situation. 4.Click OK and save the file. 5.Open the file you just saved. Swapping channels in a stereo file You may move the material in the left channel to the right channel, and vice versa: 1.Make a selection across both channels. Only the material in the selected section will be swapped. 2.Select “Swap channels” from the Edit menu.
49 Editing in the Wave window Waveform restoration with the Pencil tool The Pencil tool allows you to redraw the waveform directly in the Wave window. This can be used to quickly repair waveform errors. This error in the right channel (red waveform) can be corrected quickly by using the Pencil tool. The Pencil tool can be used if the Zoom resolution is set to at least 1:8 (one pixel on the screen equals 8 samples) or a higher resolution. Resolution values can be set in the Zoom pop-up menu. You can open it by clicking on the Zoom factor field in the Status bar, located at Wave- Lab Essential’s bottom window rim. Select the Pencil tool from the Toolbox and redraw the waveform. If you wish to redraw the waveform of both channels at once, press [Shift] on your computer keyboard during the drawing process. File handling in Wave windows Supported file formats WaveLab Essential can open and save audio files in a number of file formats. The table below gives you some basic information about the various formats available (note that additional file formats may have been added after this document was written). The Format column also lists the typical file name extensions for each format. All sample rates are supported, for all file formats. All file types can handle mono and stereo. Click here to open the Zoom pop-up menu. !This section describes file handling in the Wave win- dow (i.e. handling audio files). File handling of other document types (e.g. Audio CD Montages) is de- scribed in the respective chapter. Format Description Wave (.wav) The most common file format on the PC platform. If you plan to load the files into any other PC program, Wave files are a safe bet. 8, 16, 20, 24 bit and 32 bit (float) resolutions are supported. AIFF (.aif, .aiff, .snd) Audio Interchange File Format, a standard defined by Apple Computers Inc. 8, 16, 20, or 24 bit resolu- tions are supported. MPEG-1 Layer 3 (.mp3)The most common audio compression format. The major advantage of MPEG compression is that the file size is significantly reduced, while there is little degradation of sound quality. WaveLab Essential can both open and save files in this format. - Note that when you open an MPEG compressed file in WaveLab Essential, the file is converted to a temporary wave file that is much larger than the orig- inal compressed file. Therefore, make sure that you have enough free space on your hard disk when opening MPEG compressed files. - When you save, the temporary wave file will be converted back to MP3, so from a user perspective the file handling is transparent apart from the size difference mentioned above. MPEG-1 Layer 2 (.mp2/.mpa/.mpg/ .mus))MP2 (sometimes referred to as “Musicam files”) is a common file format in the broadcast industry. With regard to file sizes the same applies as with MP3 files. Original Sound Quality (.osq)This is WaveLab Essential’s proprietary lossless compressed audio format. By saving files in this for- mat, you can save considerable disk space without compromising audio quality. See “About saving OSQ files” on page 51. Sound Designer II (.sd2)This audio file format is used by Digidesign applica- tions (such as Pro Tools). 8, 16 or 24 bit resolutions supported.
50 Editing in the Wave window About 20-, 24- and 32-bit float files You do not need a 20- or 24-bit audio card to take advan- tage of the fact that WaveLab Essential can handle 20- and 24-bit audio files. Any processing or editing per- formed on the files is always done at full resolution, even if your card doesn’t support the full resolution. For playback, WaveLab Essential automatically adapts to whatever card you have installed. About temporary files As you work in WaveLab Essential, temporary files (file name extension .$$$) used for Undo, etc. are created on your hard disk, see “Temporary files” on page 15. You can decide whether these files should be in 16-, 24- or 32 bit format. This is done on the Preferences–File tab. The higher this value, the better the quality of the tempo- rary file. However, 32-bit files are also twice as big as 16- bit files and take longer to process. If you ever plan to export your files in 24-bit or 32-bit format, use this format or a better one (higher number) for your tem- porary files as well. Use 32-bit if you want to create files with levels exceeding 0dB. Even if you only work with 16-bit files, selecting 24-bit for your temporary files can improve audio quality slightly. For less critical applications where speed and disk space are crucial factors, use 16-bit temporary files. Opening files The various methods for opening an audio file in a Wave window are described in the section “Opening Waves” on page 33. Importing CD tracks from an audio CD is de- scribed in the section “Importing tracks from an audio CD” on page 34. Save and Save as – General information ÖWhen you save a new document for the first time, it doesn’t matter whether you select Save or Save as. The “Save as” dialog will appear, since you need to specify a file format, folder, and file name. ÖOnce a file has been saved, you can continue to edit it and then select Save from the File menu, or press [Ctrl]- [S], to update the file and make the changes permanent. ÖIf you want to specify a new name, location and/or file format, you should select Save As from the File menu. See “Saving in another format (Save as…)” on page 51. ÖAll save operations except “Save a Copy” clear the Undo buffers, which means that after saving you cannot undo or redo. U-LAW (.ulaw, .vox)This is an audio encoding and compression tech- nique supported by Windows and Web phones, us- ing 8 bit resolution. The U.S. telephone system uses U-law encoding for digitization. A-LAW (.alaw, .vox)This is an audio encoding and compression tech- nique for telephony, using 8 bit resolution. The EU telephone system uses A-law encoding for digitiza- tion. Sun/Java (.snd, .au)This is an audio file format used on Sun and NeXT computers. Files in this format can often be found on the Internet. 8, 16 or 24 bit resolutions are sup- ported. ADPCM – Microsoft/ Dialogic (.vox)This is a format commonly used for games and tele- phony applications that offers a lower bit rate than linear PCM and thus requires less storage space/ bandwidth. Ogg Vorbis (.ogg)Ogg Vorbis is a relatively new compressed file for- mat that is open and patent-free and offers very small audio files maintaining comparatively high au- dio quality. Text/Excel (.txt) This is a text representation of a waveform. By sav- ing an audio file as a text file and then opening it in a spreadsheet application such as Excel, you can view it in textual, decimal form and edit the sample values. When you open a text file representing a waveform in WaveLab Essential, it will be decoded and opened as an audio file. Note that these files are not compressed in any way, so they can get very large! Therefore, avoid creating and opening extremely large .txt files. Also note that when using 32 bit float files, the .txt format is not 100% lossless – i.e. infor- mation may be lost! This is because it is not possible to express a binary floating point value in textual decimal form without some precision loss. Windows Media Au- dio (.wma, .asf))Microsoft’s own compressed format. WaveLab Es- sential lets you import/export audio in this format, provided that you have Windows Media Player 9 (or later) installed on your system. Ensoniq Paris (.paf) Used by the Ensoniq Paris™ system (16 bit resolu- tion). Format Description