- Sound Chop Tool
- When Would You Use Sound Chop?
- Sound Chop Source Audio File
- File Data Type and File Frequency
- Files Chopped with the Wrong File Type
- Files Chopped with the Wrong Frequency
- Sound Chop Options
- Sound Chop Destination File Extension
- Sound Chop Guard Time
- Sound Chop File Name Offset
- Sound Chop Sound Threshold
allows you to record a continuous stream of prompts into a single file, and then automatically break the single file into individual files. SndChp separates a single file into individual files using periods of silence as separators. The resulting individual files can then be converted, volume normalized, and packed using other Audio ToolBox utilities.
Suppose that you need to record the numbers from one to one hundred. Rather than starting and stopping the recording process each time, you can simply record all the numbers into a single file ¾ leaving a few seconds of silence between each value ¾ and then use the sound chop tool to separate, crop silence, and store each message into a separate file numbered from one to one hundred.
The following sections refer to options as seen on the ToolBox Apprentice screen. If you prefer to use Audio ToolBox from the DOS environment, and not use ToolBox Apprentice, simply skip to the section "Sound Chop Command Line Options".
Use this settings to specify the data type and frequency for your source audio file. Audio ToolBox supports many different file types and data formats. You may need to review information provided by your system vendor to determine which one is best for your particular needs. For a detailed discussion on file data types and frequencies, please refer to Error! Reference source not found., Error! Reference source not found., page
*.If you chop a file with the wrong File Data Type Audio ToolBox will try to detect this condition and report an error. Some data types, however, cannot be accurately detected and the file will be interpreted as "constant sound", i.e., static. Sometimes, however, the file be interpreted as normal but with sections of "static" at the beginning, end, and possibly intermixed. This "static" is actually header and format information being read as audio data, and will be treated as sound and possibly placed into a separate file. Simply re-chop the file with the proper file data type.
Since Audio ToolBox supports many different file data types, you may need to review information provided by your system vendor to determine which one will work for you.
If you chop a file with the wrong Frequency, the file processing will usually sound normal, but the various processing parameters (expressed in seconds) will be shifted. In most cases, these discrepancies will have little noticeable effect (slightly larger or smaller regions of silence at the beginning or end, measured in hundredths of a second). For best results, however, you should review information provided by your system vendor to determine the correct frequency for your particular application.
These options let you specify additional parameters to your sound chop command line so you can more accurately control the result.
Sound chop
produces numbered files such as "0000.Vox", "0001.Vox", etc. Use this parameter to change the ".Vox" file extension name.The guard time parameter sets the amount of time to leave at either end of chopped sound segments. Increase the guard time for more silence at the beginning and end, decrease for less time.
Sound chop
produces numbered files such as "0000.Vox", "0001.Vox", from 0 to the total number of file sound sections. Use this parameter to change the starting count value to produce starting with a value other than zero.Sound threshold level maximum percentage (default is 2% of max). Use this setting to change the audio level interpreted as "sound". Higher values result in higher immunity to noise, but lower sensitivity to sound. If your audio segments are recorded so that they fade in or fade out, you may want to decrease this setting so that sound chop retains the quieter beginnings and endings of segments. Similarly, if the silence between segments contains "noise", you may want to increase this setting so that sound chop accurately interprets the separators as silence.