Audition Waveform. An audio file is a computer file that carries audio information and is recorded on a computer disk. Waveform is a graphical representation of that audio file on our screen. For an audio clip, we say that the soundtrack is in the sound processing program that we entered into the program with the Input command and that we see on the screen. We will get acquainted with the process of displaying audio files in Adobe Audition CC, with the graphic elements of the program and the commands for processing and selecting audio clips.
Audition Waveform Editor Panel
The basic window for working in the Adobe Audition CC program when working on a single audio clip is the Editor Panel. The Editor Panel contains a visual representation of the audio signal from the clip that is open in it. From the Files panel, double-click to open the audio clips in the Editor Panel. Also, from the Files Panel we can transfer the desired clips to the Editor Panel Drag and Drop technique. Simply right-click the desired audio clip and transfer it to the Editor Panel. The moment we hover the mouse over the Editor Panel with the audio clip taken from the Files panel, a + mark appears on the mouse indicating that we are adding a new audio clip to the Editor.
Audition Waveform. The Editor Panel consists of several parts, the dominant one being the central one, which contains a graphic representation of the audio clip. Depending on the characteristics of the audio clip we opened in this panel, the number of channels can be one for mono clips, two for stereo and six for 5.1 audio clips.
Audition Waveform. In the upper left corner of the Panel Editor, next to the Panel name, the name of the open audio clip is displayed. In addition to the name of the audio clip from the drop-down menu, we can select the audio clips that we have opened in the Editor Panel since the start of the Adobe Audition program. This option allows us to easily move between the clips we are working on. Only one audio clip can be opened in the Editor Panel at a time. Navigating through clips in the Editor Panel allows us to transfer and combine individual parts or entire audio clips with other audio clips, simple selection commands and Copy / Paste.
Audition Waveform. In the upper part of the Editor Panel, there is a navigator bar that allows us to enlarge the parts of the audio clip that we want to see more accurately. When we open the audio clip in the Editor Panel, the complete clip opens on the screen, regardless of its duration. The length of the graphic display of the audio clip is always the same and represents the part of the screen that is a certain width. If the clip lasts 5 seconds, we will see all 5 seconds on the screen and we will also see the details of the audio clip, we will see individual seconds. However, if the duration of the audio clip is 2 hours then we will again see the complete clip on our computer screen in the Editor Panel. In this case, we will not see the details because the time resolution that is in the horizontal plane of the graphic representation of the audio clip is small.
Tags 1 and 3 are the part of the clip that is not visible in the Editor Panel while area 2 in the navigator bar is the part shown in the Editor Panel. We can move the Scroll part 2 with the mouse and thus select the part of the audio clip that we want to display enlarged in the Editor panel. If we hold the left or right edge of the gray cursor in the navigator bar with the mouse, we can change how much of the audio clip we see in the Editor Panel. By reducing this rectangle, we will have a more precise, detailed time view of the audio clip in the Editor Panel. Command 4 is Zoom Out Full and sets the entire audio clip visible in the Editor panel.
In the central part of the Editor Panel, in which the audio clip is graphically displayed, there are several elements with which we identify the elements of the clip or make changes to its parameters.
- Curent Time Indicator
- Gain Control – adjusts the volume of the entire piston or selected part
- Graphical representation of the left stereo channel with numerical values of the audio signal level
- Graphical representation of the right stereo channel with numerical values of the audio signal level
Audition Waveform. Current-time Indicator shows the time of the sound in time. In the lower right corner of the Editor Panel is a numeric marker that shows the current position of the Current-time Indicator. Since the audio clip is time-defined or has its own duration, the Current-Time indicator is crucial for every process of editing or marking a certain part and its duration in the audio clip.
Audition Waveform. In the lower center of the Editor Panel, there are standard functions for starting the audio player, as with most home and professional devices. In the Adobe Audition CC program, there is a special Panel that we have already met, which performs the same function. Separating the Transport command into a special Panel allows us to customize the Workspace to our own needs.
- Move to previous – go to the previously selected part, marker or start
- Rewind – fast rewind
- Fast Forward – fast forward
- Move to next – go to the next selected part, marker or end
In the lower right corner, there are functions that allow us to display the desired part of the graphic representation of the audio clip as accurately as possible.
- Zoom In the vertical components of the audio clip
- Zoom Out the vertical components of the audio clip
- Zoom In the horizontal, time component of the audio clip
- Zoom Out is a horizontal, timed component of an audio clip
- Zoom Out Full
- Zoom In to the beginning of the selected part of the clip
- Zoom In to the end of the selected part of the clip
- Zoom to selection
In the upper right corner there is a Snapping function that makes it easier to work with selections and markings. The icon itself is a magnet, so it works, the mouse cursor is attracted to the Current-time indicator and thus any selection that may not be precisely determined by the cursor position, or the position of the mouse on the screen matches the position of the indicator and mouse.
Fade In and Fade Out functions
Audition Waveform. There are Fade In and Fade Out functions in the corners of the graphic display of the audio signal. Gradual volume boost or Fade In and gradual mute or Fade Out are the features we use most often when processing audio clips. These functions in the Adobe Audition CC program can be obtained in different ways. To speed up the production process just like with the audio clip volume control function, these functions have been given Short Cut in newer versions of the program. By simply using the mouse, we can graphically apply these functions to each clip.
Use the mouse cursor to grab the icon for the Fade In function and while holding down the left mouse button, drag to the right, determining the time component of the duration of the Fade In function. Depending on the vertical position of the mouse, we can get three different functions of the Fade In effect. If we move the mouse in a straight line, we get a linear gain function. If we move the mouse below that line we will get a logarithmic gain with a slower start of gain, while if we move the mouse above the line we will get a logarithmic gain with a more abrupt initial gain. There are Fade In and Fade Out functions in the corners of the graphic display of the audio signal.
In the picture above, we have an example of the Fade In function applied graphically – with the mouse at the beginning of the audio clip, which has a gradual initial gain, while in the second half of the effect we have a sudden gain. The horizontal component of the image, ie the Panel Editor, is the time axis and determines the duration of the Fade in effect. In the picture below. we have Fade Out in which with a computer mouse, after capturing the icon of the function or effect Fade Out, we go over the frame of the graphic representation of the audio clip and thus the strength curve, in this case attenuation, is formed so that in the first part the attenuation is gradual and then abrupt to the very end of the Fade Out effect.
To select a part of an audio clip, we must select it. We often make a new whole from parts of different audio clips. By copying the parts, we create a new audio clip, which we later process with sound by adding effects and various changes in sound parameters. To copy a part of the clip, we must select the desired part and copy it. Selection is the selection of the desired part of the audio clip. The selection of the desired part of the audio clip is done by placing the mouse at the desired place of the beginning of the selection and clicking the left mouse button to mark the beginning of the selection. While holding down the left mouse button, drag the mouse in the desired direction by selecting the surface of the audio clip. When we have reached the desired place at the end of the selection, release the left mouse button, and in that way we have selected a part of the audio clip.
The selected part of the graphic display is now in a different color from the background. In and out markers appeared at the top of the timeline, representing the beginning and end of the selection. We hereby introduce new elements of the audio clip, namely the positions of the In and Out markers. The in marker represents the beginning of a selection, our choice of a new beginning that we need for further work. While the Out marker represents the end, ie the corrected end in relation to the audio clip that was entered into the Adobe Audition program. In practice, during editing, we most often use In and Out markers to define parts of interviews or statements of people that we edit in radio packages, short stories or interviews.
In addition to selecting part of the clip using the mouse, we have another way to select the desired part of the audio clip. By placing the Curent-time Indicator at the desired location on the audio clip, we can precisely determine the beginning of the desired part of the audio clip. The very beginning of a sentence or word can be determined even more precisely with the help of arrows from the keyboard. Left arrow to go back in time on the audio clip or right arrow to time back in the audio clip. When we have so precisely determined the beginning of the selection with the keyboard, we determine the beginning of the selection with the I key for In point, ie by setting the time indicator to the desired place of the end of the selection and the O key from the computer keyboard we mark Out point or the end of the selection.