User Manual Part 2. Wave Corrector User Interface
- Convert Vinyl Records and Tapes to Digital Audio
- User Manual Part 2. Wave Corrector User Interface
- 2.1 General Description
- 2.2 The Main Window ? Wave View
- 2.3 The Main Window - Track View
- 2.4 Overview Window
- 2.5 Correction List Window
- 2.6 Control Panel
- 2.7 Toolbar
- 2.8 Status Bar
- 2.9 Keyboard Shortcuts
2.1 General Description
The user interface comprises the following main components:
The main window displays the file being processed in one of two views: Wave View and Track View. Wave View shows separate traces for the left and right channels and various other colour coded information is also present. Track View shows a simple histogram of the file that is colour coded to represent the tracks of an album. When a track boundary is selected (the end or beginning of a track), this window is used to adjust the positioning of the boundary and to add fades or silence.
To the left of the main window is a control bar for setting the the horizontal and vertical scale and other aspects of the view.
Below the main Window is an Overview window that normally displays a histogram of the current track or of the entire wave file, Below the histogram, markers represent each of the detected clicks.
To the right is the Correction List window that lists all click corrections applied by the program. These corrections are colour coded according to the estimated severity of the click. Track boundary markers are also listed in this window.
A conventional windows tool bar and status bar complete the Wave Corrector Interface.
Figure 1. The user Interface
2.2 The Main Window ? Wave View
Wave View emulates an enhanced dual trace oscilloscope display. Its green and red traces representing the left and right channels. At high magnification, the display is scaled in multiples of samples per division; at low magnification, it is scaled in multiples of seconds or minutes per division.
During playback, a synchronised vertical cursor moves across the window.
As you move the mouse over this window, the rightmost pane of the bottom status bar indicated the position of the mouse pointer in minutes and seconds.
The green and red traces represents the corrected wave. Both traces are overlaid on top of the uncorrected wave, which is displayed in blue. Because the traces are overlaid, the blue trace is only visible where a correction has taken place. This enables corrections to be easily identified. The light yellow band at the centre indicates the width of a selected click as estimated by Wave Corrector.
Figure 2. Wave View
Note that the blue (uncorrected) trace is only available at zoom ranges higher than 1 second per division. At lower zoom ranges, the waveform is dimmed to indicate that the overlay is not present.
Actions available from this window
If a click correction is selected, you can immediately enter ?correction adjust? mode by holding down the left mouse button over the correction edge you want to alter and dragging to the required new width.
Double clicking over any point in the window, re-centres the display on that point. If you double click near an existing correction, Wave Corrector will ?lock on? to that correction and it will become selected.
During playback, you can click in this window to play from a new position.
You can audition the contents of the window by clicking the right mouse button and selecting the audition command from the context menu.
You can select a ?block? for special processing by holding down the left mouse button and dragging with the mouse. The selected block is highlighted in blue.
2.3 The Main Window - Track View
This window displays a magnified section of the file in the form of a histogram representing the audio amplitude. The track colours correspond to the track colours in overview window at the bottom of the display.
When a track boundary is selected, a vertical white line denotes the position of the boundary. A vertical black band indicates the gap between the end of one track and the beginning of the next.
At the top of the display, a horizontal bar indicates the track fade-in or fade-out settings together with a pre- or post-track silence period. The triangular part of the yellow bar denotes the fade period; the hatched red bar denotes the silence period.
Note: If Track Boundaries are ?gapless? (See Options
Dialogue), there is no inter-track gap and the track boundary
is
indicated by a thick black vertical line. Also, in this mode, track
fade and silence settings will be ignored except for those at the
start of the first track and at the end of the last track.
Actions available from this window
You can immediately enter ?track boundary adjust? mode by holding down the left mouse button over the track edge (the white vertical line) and dragging to the required new position. Similarly, you can adjust the fade and silence settings by dragging their respective markers with the mouse.
2.4 Overview Window
The overview window at the bottom of the screen displays a time versus amplitude histogram of the currently selected track; or, if no track is selected, it displays a histogram of the entire wave file.
When the entire wave file is displayed (as in Figure 4), alternate tracks are shown in contrasting colours.
When the view in the main window is sufficiently wide, a horizontal white bar is displayed at the top of the overview window to indicate the section being displayed in the Main Window.
Individual corrections are indicated by colour coded markers at the bottom of the window. The colours correspond to the colours in the correction list window.
Optionally (via the View menu), you can also display a correction signature in this window. The correction signature indicates the rate at which Wave Corrector is making corrections. This helps you identify areas where manual editing may be required. See under False Positives in §4.1 Understanding Click Concealment for more advice on using the correction signature.
Except during playback, a vertical cursor indicates the position of the currently selected item. During playback, the cursor is synchronised with the audio.
As you move the mouse over this window, the rightmost pane of the status bar indicates the position of the mouse pointer in minutes and seconds.
This window can also used to display the frequency spectrum of the waveform in the main window. See §4.9 Displaying the Frequency Spectrum for more information on this topic.
Figure 4. Overview Window
Shortcuts from this window
You can re-centre the main window display by single clicking over the required new centre position. If there is a correction near where you clicked, that correction will be selected.
You can click over the Track Indicator in the top right-hand corner of the window to switch between ?All Tracks? and single track display.
You can play the track(s) shown in the window by clicking the right mouse button and selecting the ?play? command from the context menu.
During Track playback, you can move immediately to a new position by single clicking over the new position.
2.5 Correction List Window
|
Figure 5. Correction List |
The window to the right of the main window lists the click corrections determined during the scan operation together with various additional markers. The
list can be
customised to show only corrections greater than a given magnitude. The corrections are colour coded according to the expected click magnitude. The colour code is as follows: High Magnitude Red Medium Magnitude Yellow Low Magnitude Green User Entered Lt Blue Cut Section Dk Blue Marker White Track Boundary Grey
|
Shortcuts from this window
You can select a correction or track boundary for viewing or auditioning by clicking over it with the left mouse button.
You can step between listed corrections using the Up/Down cursor keys. To step between all corrections (including unlisted ones), use Shift-Up/Down.
You can select a block of corrections as follows: select the first correction in the block; then hold down the shift key and select the last correction in the block. The entire block will be selected.
2.6 Control Panel
|
Figure 6. Control Panel |
The Control panel to the left of the main window provides the following controls for scaling and adjusting the image of the waveform: 'Wave' and 'Track' buttons for selecting the view mode for the main window. Vertical Scale in mV per Division; ranges: 20 to 1000 in1-2-5 steps. A check box to auto-scale the vertical display. Horizontal Scale (Waveform View) in Samples/Secs/Mins per Division; ranges: 5 samples to 5 minutes in 1-2-5 steps.
Horizontal Scale (Track Boundary View) in Seconds per Division; ranges: 0.1 to 10 in 1-2-5 steps.
Trace Separation in Divisions; ranges: 0 to 8.
Left and Right Channel On/Off buttons labelled ?L? and ?R?.
Below the controls, a window shows the centre position of the main display in mins.secs.msecs from the start of the track or file.
At the bottom of the
control bar,
a slider allows you to slow down playback. This is to aid the
identification of clicks. Shortcuts Keys:
Num. Keypad '2' (Down Arrow): Vertical Zoom In |
2.7 Toolbar
The toolbar is displayed across the top of the application window, below the menu bar. The toolbar provides quick mouse access to many tools used in Wave Corrector. To display or hide the toolbar, use the Toolbar command in the View menu.
Click To
Open
a new wave file for processing and scan for clicks and track
boundaries. Wave Corrector displays the Open dialog box, in which you
can locate and open the desired file.
Record
a new wave file and scan for clicks and track boundaries. Wave
Corrector displays a File Save dialog box, via which you can locate
and name the desired file.
Re-Scan
and process the currently loaded wave file for clicks.
Call
the Scan Options dialog .box. Options such as click detection
threshold can be set by the user.
Audition
a click before correction has been applied.
Audition
a click after correction has been applied.
Remove
a correction from the correction list. The original waveform is
restored. A confirmation dialog appears before the correction is
permanently removed.
Starts
the correction adjustment process or manually inserts a new
correction. Using this command, the placement and width of a
correction can be altered.
Find
a correction meeting new search criteria
Jump
back to the previous correction meeting the current search criteria.
Jump
forward to the next correction meeting the current search criteria.
Apply
digital filters to the currently loaded wave file.
Play
track(s) from start. Plays the current track from the start; or if no
track is selected, plays the entire file.
Play
track(s) from marker. Plays the current track from the current marker
position; or if no track is selected, plays the entire file.
Pause
or continue playback
Cancel
playback.
Split
a track by inserting track boundary markers.
Merge
two tracks by removing track boundary markers.
Audition
the placement of a track boundary. This button is used interactively
when you fine-tune the position of a track boundary.
Display and/or edit tags and track boundary parameters.
Jump
back to the previous track boundary marker.
Jump
forward to the next track boundary marker.
Call the help file.
Enable context sensitive help. After selecting this button, click over a region of the Wave Corrector window to obtain help.
2.8 Status Bar
The status bar is displayed at the bottom of the Wave Corrector window. To display or hide the status bar, use the Status Bar command in the View menu.
The left area of the status bar describes actions of menu items as they are selected. This area similarly shows messages that describe the actions of tool bar buttons when the mouse pointer moves over them.
The right hand areas of the status bar indicate in turn:
1. the current Wave Corrector status. Note, during playback, you can click in this area to instantly switch between the original and corrected wave.
2. the total number of clicks detected.
3. the position of the mouse in the main or overview window.
2.9 Keyboard Shortcuts
| Open File | Ctrl + O |
| Save | Ctrl + S |
| Record | Ctrl + R |
| Batch Process | Ctrl + B |
| Exit Wave Corrector | Alt + F4 |
| Help | F1 |
| Context Help | Shift + F1 |
| Next Correction | Cursor Down |
| Previous Correction | Cursor Up |
| Scroll Left | Cursor Left (hold down SHIFT key for bigger steps) |
| Scroll Right | Cursor Right (hold down SHIFT key for bigger steps) |
| Remove Correction(s) | Delete |
| Insert Correction | Insert |
| Shrink Correction | Page Down |
| Insert Cue Marker | Tab or Numeric Pad + |
| In most screens Right click mouse for context menu | |
| During Correction Adjustment: | |
| Confirm (Apply) Edit | Return |
| Cancel Edit | Escape |
| Playback Commands: | |
| Play (track) Original | Shift + Space Bar |
| Play (track) Corrected | Space Bar |
| Audition (click) Original | Numeric Pad 1 |
| Audition (click) Corrected | Numeric Pad 3 |
| Pause/Resume | Space Bar or Numeric Pad Del |
| Stop | scape or Numeric Pad 0 |
| Jump Back 2 sec. | Back Space or Numeric Pad Enter |
| Jump Back 1min. | Page Up |
| Jump Forward 1 min. | Page Down |
| Speed Up | Numeric Pad 9 |
| Slow Down | Numeric Pad 7 |
| Signal View | |
| Vertical mV/div: | |
| Expand | Numeric Pad 8 |
| Condense | Numeric Pad 2 |
| Horizontal t/div: | |
| Condense | Numeric Pad 4 |
| Expand | Numeric Pad 6 |
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