At 02:16 PM 3/17/02 -0500, Walt wrote:
>Many of the sound editors can do the waveform as in some forms of
>detailed editing you might be editing that by drawing down at the sample
>by sample level. Most don't generate it as you play, but generate this
>on opening and run a marker line along it while playing. No real math is
>involved in generating the waveform display.
Walt:
Cool Edit Pro, on PCs, set to only slightly low res settings (resolution
256 bands, window width 100%, Style: Log plot energy range 120 dB) it
keeps up fine with both making a spectrum and recording an incoming
44.1kHz, 16 bit stereo signal. The software automatically scrolls to the
left, while making new chunks of spectrum (0 to 22 kHZ) at the cursor on
the right. Every now and then a single spectrum-chunk gets by it,
especially on startup. During "play to end" with the visible window set
to 10 seconds, it also scrolls very smoothly on playback for the full
length of the cut (> 10 minutes).
I make many recordings in the spectrum mode this way, to see the spectrum
on input, both channels, recognize incoming bird sounds with high pitched
components my hearing sometimes misses. This is on a year-old $900 Win
box, Pentium III 700 MHz. Smooth as silk. You can probably get one used
for less than $500 now, and the software is $ 275?
my very best,
Marty Michener
MIST Software Associates
75 Hannah Drive, Hollis, NH 03049
coming soon : EnjoyBirds bird identification software.
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