THANX !
thats lots of interesting info, i cant believe how helpful people can be,...
your not charging me anything right ;-)
-----Ursprungligt meddelande-----
Fr�n: Al Hospers [mailto:[EMAIL PROTECTED]]
Skickat: den 26 april 2001 17:15
Till: [EMAIL PROTECTED]
�mne: RE: <lingo-l>which sound xtra should I choose ?
> I need to find an xtra that can register the input sound from
> a microphone,
> and display how strong the signal is...
> It�s ment to be used in factorys to see how much noice the machine
> makes.....
Hi,
The Audio Xtra from UpdateStage may be all the Xtra you need for your
purposes. Here is one function that, if you on a Mac, may be useful:
axGetInputLevel ( )
Returns: An integer between 0 and 255, or a negative error number.
(Mac only) Returns the current sound input volume level. The sound recorder
must be open to get a level.
Audio Xtra is also capable of plotting a waveform on Mac or PC. Here is that
function:
axPlotWaveform (soundNameString, displayMemberRef, widthInteger,
heightInteger, resolutionSymbol, [channelToPlotInteger])
soundNameString: name of a sound present in the sound list
displayMemberRef: member slot to create plot image. This can be an existing
graphic member or an empty member.
widthInteger: width in pixels of plot image, timeBase param will override
this.
heightInteger: height in pixels of plot image
resolutionSymbol: #low: 10-20 dots per X, #medium 30-50 dots per X, #high -
80-100 dots, #maximum - all dots
channelToPlot: optional number of channel to plot if sound has multiple
channels. Default is 1.
Returns: An error number or 0 for no error.
Creates a plot graphic of the selected sound in the sound list and puts it
into a bitmap cast member. The cast member specified can either be an
existing bitmap cast member or an empty member slot. Audio Xtra cannot plot
compressed sounds.
Allocates memory the size of the environment variable plot buffer to perform
the plot, and releases the memory after the plot. An out of memory error
returned from this call means that a plot buffer of the specified size could
not be allocated.
Note: small sound files plotted over large-width plots may be not plottable
at lower resolutions and will return an error. Try plotting at a higher
resolution. This is a math limitation. Audio Xtra cannot create a plot imate
where there are more pixels horizontally than sound samples to plot.
Examples:
axOpenRecorder(19249)put axGetInputLevel() into field "Input Level"
You could easily create a behavior that displayed a realtime graph of the
volume.
Audio Xtra records sound in Director, Authorware and Shockwave. It can
record to external files, cast members or to memory. Audio Xtra initially
records to WAV files on the PC and AIFF files on the Mac.After recording, it
can convert recorded sound to AIFF, WAVE or AU format on either platform.
Audio Xtra is Shockwave-safe and downloadable, which means that it will
automatically install itself if it is not already present on the end-user's
system.
Audio Xtra is a commercial Xtra available from UpdateStage.
Price: $299.00
Platforms: 32-bit Windows,Mac
Director versions supported: 6,7,8
Shockwave-safe, Shockwave auto-install
Author: Scott Kildall
For more information go here and click Audio Xtra in the menu on the left.
http://www.updatestage.com/xtras/xtrahome.html
HTH,
Al Hospers
Marketing Associate
UpdateStage
alhospers<at>updatestage<dot>com
http://www.updatestage.com
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