3.4.2 Transforming Input Signals:
Command Line Options This section explains details of the command line arguments for isip_transform and provides examples of how to use them. All of the example commands below can be run from the directory $ISIP_TUTORIAL/sections/s03/s03_04_p02/. For a general discussion of our command line interface, see our foundation class documentation on utilities. To get started, execute the command isip_transform -help. You will obtain this output: name: isip_transform synopsis: isip_transform -param params.sof [options] [file1.sof ...] descr: transform data from one format to another example: isip_transform -param params.sof [file1.sof ...] options: -directory: directory to place output (default = source file directory) -extension: new file extension (default = sof) -list: Sdb file list -log_file: redirect console output to this file (default = stdout) -parameter_file: contains the recipe to be processed -preserve: number of levels of subdirectories to preserve (def = 0) -suffix: new basename suffix (default = none) -type: text or binary (default = binary) -verbosity: verbosity level (default=NONE) arguments: filename(s) man page: $ISIP/util/speech/isip_transform/index.htmlClick on the isip_transform manual page for more information about this utility. To view more detailed explanations of each option above, click on the corresponding link. Option: -directory The output files can be created in any user-defined directory. The command:
Option: -extension The extension of output files from isip_transform is fully customizable. The command:
Option: -list The user can specify a list of the files to be processed. Normal Unix regular expressions can be used (e.g., "*/*.sof"). Users can also enumerate a list of files using a special file database format known as a Signal Database file (Sdb). See the Sdb class documentation for more information on this capability. Processing a list of files is easy using the "list" option. These lists can be intermingled with regular files. This example uses a basic recipe, recipe_energy.sof, and the files speech_0.sof and speech_1.sof listed in list.sof.
processing ./speech_in_1.sof -> ./speech_1_energy.sof Option: -log_file The output of isip_transform can be directed into a user-defined log file using the parameter log_file, which is often abbreviated as "-log". In this example, the log file used is output.log:
processing ./speech_1.sof -> ./speech_1_new.sof Option: -parameter_file Parameters for isip_transform are recipe files usually generated by isip_transform_builder. The option "-parameter_file" (which is often abbreviated as "-param") specifies the name of the recipe file. A recipe file can be a single recipe, or a list of recipes encapsulated in an Sdb file. This feature is demonstrated in Section 3.5.2. Below we demonstrate the use of this option for a single recipe.
Option: -preserve This utility also provides the ability to preserve directory structure to a user-specified level. Currently, you should be in the directory $ISIP_TUTORIAL/sections/s03/s03_04_p02/. Suppose we want to extract features from some file, but preserve two levels of the directory structure. We would accomplish this with the following command:
Option: -suffix The suffix option allows the user to add a suffix to an output feature file. The new filename is created in the form [basename][suffix].[extension]. For example, run this command:
Option: -type The type of any output file created by isip_transform can be either text or binary. Run both commands below and compare the files created by each command.
Option: -verbosity The verbosity option controls the amount of ouput that is displayed on the screen. This option is useful when debugging. The three commands below perform the same operation, but display different amounts of output to the screen. For this example, be sure to delete the file created after running each command to avoid creating multiple files. Setting verbosity to NONE:
loading parameter file: recipe_energy.sof processing file 1: speech.sof processing pfile 1: recipe_energy.sof processing speech.sof -> speech_energy.sof isip_transform: processed 1 file(s), attempted 1 file(s).
Version: 1.35 (not released) 2003/06/30 20:03:44 total recipes 1 loading parameter file: recipe_energy.sof processing file 1: speech.sof processing pfile 1: recipe_energy.sof processing speech.sof -> speech_energy.sof processing frame 0: processing frame 1: processing frame 2: processing frame 3: processing frame 4: processing frame 5: processing frame 6: ..... ..... processing frame 510: processing frame 511: processing frame 512: isip_transform: processed 1 file(s), attempted 1 file(s). |