Thread: Driving an Audio Servo Driver with an Audio Sublayer

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I've alluded to this in other posts and thought I should try to do a tutorial on how I drive my skull servos.

Here it is. I hope it's helpful to you Scary Terry circuit users out there!

[ame=http://www.youtube.com/watch?v=uMHaoVA0GMU]YouTube - Skull Control[/ame]

Great idea!

Audacity has a tone generator that can generate this 12KHz sine wave at any amplitude. Of cource you can download audacity for free.

Yeah, I tried out Audacity with this idea but when I place a tone it always puts it at the beginning of the track. If I copy and then try to paste it at the curser it just adds it to the front of the track, not where I placed the curser (i.e. under the next word as shown). And also it's a little bit of a pain because you can't right-click and paste, it has to go through the drop-down menu.

Anybody have a way to do this with Audacity??

DW

Cool! I started doing that trick a couple of years ago. It sure makes for accurate jaw action, especially when you dial in the amplitude and decay for each tone segment. I found it really effective for gettng good "laughing" motion from the servo. It also eliminates flutter if you use moderate to heavy echo effects. I haven't tried using Audacity for building voice tracks - I've been using GoldWave for a few years.

I should say that you certainly don't need to use 12khz as your trigger tone, the board recognizes much higher frequencies as well. So 12k, 16k, 18k... just stay within the reproductive capabilities of your playback media.

Anybody have a way to do this with Audacity??

I am not an Audacity user, although I have tinkered with it a little. Isn't there a move or time shift command or tool? I'll open it up and see if I can learn it enough to help you out.

Thanks PE. Just haven't had time today to fiddle with it but if we can get it to work I definitely wanna 'fix' my talking skelly for this year. Thankfully I only have one.

DW

[ame=http://www.youtube.com/watch?v=TYld2mlbZZQ]YouTube - Creating the Audio Sublayer in Audacity 1.3.3b[/ame]

I like that method. I have never heard of Audacity, I use Sound forge and acid. I just use the right track for the audio and the left track I would bump the volume where ever the board missed and send that signal to the servo. I like this method because I would not be losing a channel. Thanks for the great instruction.

I followed what "Push Eject" did last night and all I can say is wow! Made all the difference in the world. Thank you for the great "how too", I used Audacity and the result was outstanding, i was able to get very precise jaw movement.