leonardo46
Italy
Asked
— Edited
Resolved by thetechguru!
I'd like to experiment servos simulating the robot mouth moving while EZB is speaking recorded messages.
There is " talk servo", but this control seems to be only for speech synthesis.
There's " sound servo", but this doesn't seem to be for recorded messages.
How can I get servo movement from the pre-recorded messages that are now being spoken from soundboard v4 and EZB speaker?
Please give some example.
But i need to make it move following pre-recorded messages activated by scripts.
I don't know how to do that.
It moves servos based on the audio played from the ezb.
Something happens with "sound servo" , but movements are very small.
"update speed" is in milliseconds , (100-60000 ? very long times ).The servo position is periodically updated to the audio signal level ?
What's "scalar" meant for, and what's the meaning of those numbers (0.25 to 9.75) ? The servo moves by itself , with or without sound in EZB (!) No mic in the PC.
What's the use of "variable name" ? for scripts, I think, but how should it be used ?
Speaking to the PC mic the servo moves well, but never stops moving, even in perfect silence.
Playing a pre-recorded speech, no mic, EZB speaks well, but the servo moves only a very small amount or nothing at all, and never stops, even if EZB finishes playing.
Sound servo (PC Mic) reacts to sounds the PC microphone hears.
Sound servo (PC Speaker) reacts to sounds played by the PC, whether originated from EZ-B or other applications)
Sound servo (EZ-B Playback) reacts to sounds sent to the EZ-B, either speech or sound script or objects that play to the EZ-B speaker.
Talk servo reacts to Text to speech, either on the PC or EZ-B, but only for speech, not for other sounds.
Alan
If a tutorial is missing, feel free to create one based on your new knowledge.
For more information regarding the control in question, click here: http://www.ez-robot.com/Tutorials/Help.aspx?id=226
Or use the ? Question mark next to the X close button. If no user tutorials exist, ask in the community like you just did. Once you get assistance, contribute back to the community by creating a user tutorial to assist others.
User tutorials are connected to controls - with the 12 questions you have had answered, user tutorials will greatly affect others
I suspected something when I noticed some reaction to the room noise taken by the PC mic. I have learned that I need the one "for ezb playback".
Now I need to understand "update speed","scalar", "variable name" in the configuration window and how such parameters can affect servo operation.
To DJ. Sorry, I consider myself very ignorant about EZB, and I never thought I could write tutorials to teach someone else! But I can try , in the specific issues i have learned.
The scalar is a scalar - it's how much to multiply the audio level. Audio is in DB and the scalar will multiply the DB. Remember, the servo position is a multiple of the DB, so the scalar changes that. Changing the scalar to 2 will make the servo 2 times sensitive.
Variable name holds the data in a variable if you wish to use it in an ez-script. You will not use this.
The link i have been sending you is EZB PLAYBACK, that is the one you want based on the question you asked. The question in the first post is what i'm referring to about having an audio file play out of the ezb speaker. Use the link of that i have been sending you, it contains instructions how to add it to your project.
Don't worry - we are all noobs when it comes to the ez-b
I start, by a keyboard command, a pre-recorded message stored in soundboard v4 for playing by the ezb speaker, and I have also the sound servo control for ezb playback.
I'd expect the servo to start moving when the sound begins and stop when it ends. Instead , the servo moves immediately, the sound begins 1-2 seconds later, and the servo stops moving before the message ends.
The duration of the servo movement is the same of the message, but the speech is delayed with respect to servo movement.
Unpleasant behavior for a speaking robot ! How to resolve ?
This has been reported before, and I believe is somewhere on DJ's todo list to be fixed, but a good reminder that it is still a problem. It seemed to be better (although not perfect) for a while, and seems to have gotten worse again in the past few releases.
Much more work, but you can also trigger specific actions to specific points in your soundboard. This is best demonstrated in the SIX project, where different dance movements occur at different points of a song, but you could build speech actions and trigger them within the soundboard at the right points.
Alan
Alan
Nevertheless I thank Alan, who helped to understand the various options for sound servo, so I could do some experimentation.
I specify him as the member who solved my question.
I'm wandering if ezb alone might perform functions like automatic object finding and grasping , and automatitc movement of robot to a specified location.
Certainly not with the current version. Would need a different processor. I am interested in seeing if using the x/2 USB adapter will resolve any of the latency related issues. Of course to use that I'll also need to use a webcam on the emdedded PC since the USB connector uses the camera connector slot.
Alan
DJ hasn't given the price yet, but said it will be an affordable upgrade.
Alan