home *** CD-ROM | disk | FTP | other *** search
- WM WAV Scan
- ───────────
-
- WM WAV Scan reads the specified input file (which should conform to the
- subset of the WAV format used by all WAVmaker applications {WMWAV}) and
- displays a description containing the following information:
-
- ■ Sampling rate (11025, 22050 or 44100 Hz)
- ■ Number of sound channels (1 or 2)
- ■ Word size (8 or 16 bits)
- ■ Data size (number of samples per sound channel)
- ■ Duration (playtime in milliseconds)
- ■ Min/Max sample values (by sound channel)
- ■ Number of saturated samples (by sound channel)
- ■ Root Mean Square (RMS) of sample values (by
- sound channel)
-
- The last two points above are especially interesting if you are checking
- a new sample file or the results of a DSP operation. Many saturated samples
- (i.e. samples taking on the min/max values allowed by the word size employed)
- indicate too high a recording level, causing distortion. Too narrow a min/max
- range on the other hand gives you bad dynamic response and a low signal/noise
- ratio. Ideally, you should try to use the full word size, just barely
- avoiding saturation. WM Maximize {Maximize} will scale up your WAV to full
- amplitude, but this is useful only to prevent further losses of precision
- when performing new operations on the sound; it certainly can't restore any
- information already lost!
-
- Usage: WAVscan <source>
-
- The default directory is Temp\. The default extension is WAV.
-
- Note: If WAVscan can read a sound file without error, chances are that
- the file will work fine with all WAVmaker applications.
-
- A title:value pair with title "File #1" and value <source> is written to
- WAVmaker's public Function key file {FnKeys} upon successful termination.