ADOBE AUDITION

+ Why do I have a 3db Drop in Mixdown's Volume?

When creating a mixdown of a Multitrack view project, you may notice that the resulting file’s audio level is 3dB lower than when played in Multitrack view. If this is happening, you need to change a setting in Audition.

The 3dB drop is caused by a setting in Audition that is compensating for a track panning issue to make sure the audio does not overload when individual tracks have different pan settings. Normally for IMS recordings we do not use Audition’s mixer pan functions and do not want the 3dB drop in a mixdown.

To permanently turn off the 3dB drop function do the following:

  1. In Mutltitrack view’s Clip menu choose Advanced Session Properties

  2. Click the Mixing tab

  3. Click the L/R Cut Logarithmic (default) radio button

  4. Click Set as Default button and exit the dialog box

Important: Make sure you set panning to L/R Cut Logarithmic (default)in the Clip menu’s Advanced Session Properties, because there is a similar setting in the Preferences dialog box that does not make it happen.

+ Customizing adobe audition's workspaces

The main window of Adobe Audition contains various panels organized in an arrangement called a workspace. The default workspace contains panels that are grouped together as well as panels that stand alone. The panels appear at the bottom of Adobe Audition’s Edit View workspace.

The workspace is customized by arranging the panels, usually by dragging them, into a layout that best suits your style of working. Each view, Edit or Multitrack, can be customized separately.

The Transport, Time, Zoom and Selection/View boxes at the bottom of the screen are called Panels. Panels contain either buttons, such as the Transport panel, or information, such as the Selection/View panel. A panel is moved using the panel gripper, to drag the panel to a new position. The panel gripper is located on the upper left of each panel and looks like a group of gray dots.

Panels can be moved to new locations, moved into or out of a group, placed alongside each other, or undocked so the panel floats in a new window on top of the program window. As you rearrange panels, the other panels resize automatically to fit the window.

You can also create and save custom workspaces for different tasks. This is a valuable feature that enables you to choose between several customized workspaces depending on the type of project you are working on, for example, you might have one for IMS audio projects and another for IMS video projects. Restoring a saved custom workspace is another advantage, used for when panels are accidently moved or re-sized. Simply choosing a menu item restores the entire workspace to the defined layout.

+ Customizing the menu

Menu Changes The following changes are found in Audition’s menus. Enabled is indicated by a check mark next to the menu item.

Change to Multitrack view In the View menu, enable: Show Clip Volume Envelopes Enable Clip Envelope Editing Clip Edge Dragging

In the View menu, disable: Show Clip Pan Envelopes Enable Clip Time Stretching

In the View menu’s Display Time Format, choose either: For an audio project choose Decimal (mm:ss:ddd) For a video dubbing project choose SMTPE Drop (29.97) fps

In View menu’s Shortcut bar, enable: Show

In View menu’s Shortcut bar submenu Groups, enable: File, Edit, Clip Disable other checked items

In the Window menu, enable the following items: Tools, Files, Level Meters, Time, Transport controls, Zoom controls and Selection/View controls Video if doing video dubbing Disable other checked items

In the Edit menu’s submenu Snapping, enable: Snap to Markers Snap to Clips Disable other Snapping items

In the Edit menu’s submenu Tools, enable: Hybrid R

In the Option menu, disable: Synchronize Clips with Edit View

+ Customizing preferences menu

The following are the IMS recommended changes to the Audition’s default Preferences and Menu Settings. If one of the recommended settings is already set, you do not need to change it. Only the listed settings need to be changed or confirmed, the rest can remain as default.

Preferences Menu

  1. Change to Multitrack view
  2. In the Edit menu click Preferences…
  3. On the General tab, make sure the following are enabled: Force Spacebar to always trigger play Auto-scroll during playback and recording Resume auto-scrolling immediately Edit View Right Clicks: Pop-up menu Edit View Selections: Entire file
  4. On the System tab, change: Cache Size: to 32 Undo levels to 1
  5. On the Display tab, change: Display Lines at: to -2 (minus 2)
  6. On the Multitrack tab: Change Recording Bit Depth: to 32 bit Enable Auto zero-cross edit.
  7. Close the Preferences… dialog box

aUDACITY

+ HOW DO I CHANGE AUDACITY'S INTERFACE LANGUAGE?

During program installation you choose a language for the menus and dialog boxes. Later, if a different interface language is needed, the language can be changed. This is done using the Audacity Preferences dialog box.

  1. Click the Edit menu and choose Preferences.
  2. Click the Interface tab.
  3. Click the down arrow in the Language box and choose the desired language.
  4. Click OK to close the dialog box.
  5. Click the File menu and choose Exit to close Audacity. Audacity needs to be closed and opened again for the changes to be put into effect.

+ LOW VOLUME IN AUDACITY

There are two basic reasons why you might have low volume in an Audacity recording.

  1. Did you remember to "normalize" the wave? If not, do that and see if your problem is resolved.
  2. If you normalized your wave and it still has low volume, then you need to carefully look at the file. Do you have any high spikes? Can they be removed (i.e. is it a click, or a cough)? Can the spike be reduced in amplitude? If so, take care of the spike and then normalize the wave again.

+ MP3 IN AUDACITY

Audacity does not contain an MP3 encoder. It uses a free MP3 encoder called LAME. This encoder is enabled for Audacity by locating it in the libraries section of Audacity’s preferences. In the section called “MP3 Export Library,” click the locate button. Then in the “Locate Lame” pop-up window, click the download button.

This will take you to the download page and then you may install the download and Audacity will “locate” the lame_enc.dll. After completing this, you should be able to export MP3 files. This method directly locates the library.

The library may also be downloaded and installed manually from www.sourceforge.net; however this requires that you manually locate the library through using the browse button and navigating to where you installed the LAME download.


AUDIO RECORDING HELP

+Microphone Placement in Audio Recordings

Check this page out for Microphone Placement

+What Resources are Available?

You can check with our Ministry Partners for further ideas and or equipment to help with your audio recordings.

You can also consult our SHELL VIDEO MANUAL which has some good tips on recording using a temporary studio. (see p.16)

+ How do i choose a sampling rate?

The sampling rate you should use will depend on the final output. For example, if recording for a CD production, record at 44,100 sampling rate and 16 bits; however, if recording for DVD production, record at 48,000 sampling rate and 24 bits. Should the final production output not be known at the time of recording then we recommend recording at the higher sampling and bit rate which will allow for down-sampling later if needed. It is better to have to down-sample than up-sample because of possible aliasing problems.

IMS recommends recording at the higher sample and bit rate unless you have limited storage space; then you might want to consider recording at the 16 bit rate. IMS now recommends recording at 32 bit rate when available or the highest your device will allow.

+ Why do I have pops and hisses?

When recording in settings other than a professional studio there may be external noise which can distract from the final results. Padding in the studio can help eliminate some of the noise, but microphone placement is also important for helping to eliminating external sounds.

The key to getting good sound in a noisy environment is to close-mic with a unidirectional microphone. By doing this the input volume control can be kept low, preventing external sounds from being recorded. However, close microphoning has two problems that can affect the recording: proximity effect and breath noise.

Unwanted external noise can be eliminated or reduced by placing the microphone within a few inches of the talent’s mouth. The disadvantage of this is the proximity effect, which increases the bass sound of the voice. Generally this is acceptable, but it is important to remember the position of the microphone in relation to the talent during previous recording sessions with the same talent. Different positions and spacing produce different sounds, which are very noticeable in the recording.

When a microphone is positioned directly in front of the talent’s mouth, there is a good possibility breath noise will reach the microphone and be included in the recording. These can be reduced or eliminated by positioning the microphone at a 45º degree angle above and off to the side.

A type of breath noise is a pop, which is an explosive breath sound produced when a puff of air from the mouth strikes the microphone. This is usually from pronouncing the letters “p”, “t” and “b”. A pop filter, which is a metal grill or foam cover over the front of the microphone, helps to reduce the popping sounds.