user manual
Table Of Contents
- Introduction
- Optimizing for Sound Forge
- Learning the Sound Forge Workspace
- Getting Started
- Navigating, Zooming, and Selecting
- Changing File Attributes and Formats
- Using Markers, Regions, and the Playlist/Cutlist
- Why use markers, regions, and the playlist?
- Using markers
- Using command markers in streaming media files
- Using regions
- Using the Regions List
- Using the playlist
- Displaying the playlist
- Adding regions to the playlist
- Understanding the playlist display
- Customizing the playlist display
- Repeating a region during playlist playback
- Playing from the playlist
- Arranging the playlist
- Replicating a region in the playlist
- Using stop points
- Deleting a region from the playlist
- Creating a new file from the playlist
- Configuring the playlist as a cutlist
- Saving a playlist/cutlist file
- Opening a playlist/cutlist file
- Copying the playlist/cutlist to the clipboard
- Recording, Extracting, and Burning
- Recording audio
- Recording manually
- Recording automatically
- Recording a specific length (punch-in)
- Choosing a recording mode
- Adjusting for DC offset
- Playing back recorded audio
- Using remote recording mode
- Synchronizing with other devices
- Viewing input levels
- Inserting markers while recording
- Configuring gap detection
- Automatically labeling windows and regions
- Changing blinking status
- Extracting audio from CDs
- Burning CDs
- Proper use of software
- Recording audio
- Editing, Repairing, and Synthesizing Audio
- Processing Audio
- Applying Effects
- Adding an effect
- Adding a chain of effects
- Applying effects using the Plug-In Chainer
- Adding plug-ins to a chain
- Selecting the processing mode for audio tail data
- Arranging plug-ins on a chain
- Bypassing effects
- Removing plug-ins from a chain
- Configuring chained plug-ins
- Saving individual plug-in settings as a custom preset
- Saving plug-in chains
- Loading plug-in chains
- Managing effects
- Automating Effect Parameters
- Adjusting envelopes
- Using Acoustic Mirror and Wave Hammer
- Working with MIDI/SMPTE
- Sampling
- Looping
- Working with Video
- Using Spectrum Analysis
- Working in the frequency domain
- Using a spectrum graph
- Displaying a spectrum graph
- Monitoring an input and output source
- Displaying frequency and amplitude values, notes and statistics
- Navigating a spectrum graph
- Changing the graph type
- Changing the zoom level
- Working with stereo files
- Updating a spectrum graph
- Viewing multiple spectrum graphs
- Creating and comparing snapshots of the Spectrum Analysis window
- Printing the graph
- Using a sonogram
- Adjusting Spectrum Analysis settings
- Shortcuts
- Microsoft Audio Compression Manager
- SMPTE Timecode
- Using CSOUND, MTU, IRCAM, BICSF, and EBICSF Files
- Index
164
PROCESSING AUDIO CHP. 10
Downsampling audio
1.
Open the Musicbed.pca file.
2.
Right-click the data window and choose Properties from the shortcut menu. The Properties dialog
appears. Notice that this file has 44,100 Hz sample rate and a file size of 0.48 MB.
3.
Click OK.
4.
From the Process menu, choose Resample. The Resample dialog appears.
5.
From the Preset drop-down list, choose Resample to 8,000 Hz with anti-alias filter and click OK. The audio is
resampled at 8,000 Hz.
6.
From the File menu, choose Save As. Save the resampled file with a new name and close it.
7.
Open the resampled file and view its Properties dialog. The sample rate is lower (8,000 Hz) and the file
size is smaller.
8.
Play the file. Notice the obvious decrease in audio quality.
Note:
Use this new file to perform the following up-sampling
procedure.
Upsampling audio
1.
Verify that the file created in the previous procedure is the active data window.
2.
From the Process menu, choose Resample. The Resample dialog appears.
3.
From the Preset drop-down list, choose Resample to 48,000 Hz with anti-alias filter and click OK. The audio is
resampled at 48,000 Hz.
4.
From the File menu, choose Save As. Save the resampled file with a new name and close it.
5.
Open the new file and view its Properties dialog. Notice that the sample rate is higher (48,000 Hz) and
the file size is larger.
6.
Play the file. Notice that resampling to a higher sample rate produces an audio quality at 48,000 Hz that is
indistinguishable from the quality at 8,000 Hz.
Resample controls
The following controls are located in the Resample dialog.
New sample rate
Determines the sample rate (in Hz) at which Sound Forge resamples the file.
Tip:
Processing is quicker when downsampling by an even
multiple (such as when going from 44 kHz to 22 kHz).