Old 01-13-2010, 02:48 AM #17
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Default Re: Just bought a 30k (maybe 20k) scanner, need a little help.

How does that work? Does it save the audio into the wav file along with the laser frames, and sends it out on the 2 spare soundcard DAC channels, or ?


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Old 01-14-2010, 12:18 AM #18
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Default Re: Just bought a 30k (maybe 20k) scanner, need a little help.

Quote:
Originally Posted by Things View Post
How does that work? Does it save the audio into the wav file along with the laser frames, and sends it out on the 2 spare soundcard DAC channels, or ?
Yes!

To be fair.... as I said, it's not the easiest way....

You make a 6 channel wave of laser signals in LaserBoy and you splice a stereo audio wave with it to make an 8 channel wave (also in LaserBay). You need to pay attention to the sample rates of both to be the same.

No. There is no time alignment editor or anything like that..... yet.

I'm still working out every last stinkin' sample that is necessary to make the most perfect optimization I possibly can. Once I have all of that, from beginning to end, I can work the numbers backward and make a laser show piece exactly the same number of samples as a segment of music.

It is also possible to use the free and OS independent Audacity to visually edit waves together and save them as a single 8 channel wave.

Audacity: Free Audio Editor and Recorder (Super useful tool!)

Thanks for asking!

This was my goal for a target device for LaserBoy from the very beginning!

8 Channel USB sound device for LaserBoy

This hardware arrangement is also perfect for showing hard drive transcriptions of ADAT shows (saved as 8 channel waves).

BTW: ANY laser show produced with ANY DAC can be digitally recorded and turned into a wave. Wave is the Grand Unification of laser display signals!

James.

Last edited by James_Lehman; 01-14-2010 at 05:44 AM.
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Old 01-14-2010, 01:57 AM #19
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Default Re: Just bought a 30k (maybe 20k) scanner, need a little help.

@ Things

What is this file ?, thanks

[QUOTE=Things;604124]
this file
http://files.getdropbox.com/u/203420/max.zip
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Old 01-14-2010, 07:37 PM #20
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Default Re: Just bought a 30k (maybe 20k) scanner, need a little help.

^It's a .wav file that maxes out the audio channels on a sound card DAC so that it can be properly tuned. With the channels maxed, you can then set the max output voltage on each channel. Once that's done the DAC is tuned and ready to go.
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