One Really Expensive Junk Pile!

Pictured here is a pile of the various bowing surfaces we have designed and built for use on our Violin Synthesizer in development. I am not going to say much about them, as there is at least a little bit of technology in each that we might use for something in the future. NONE of these bowing surfaces have passed my test for acceptability, the most important criterion being that an expert string player be able to use their bowing expression skills unencumbered by the technology. All are based on technologies to accurately sense bowing pressure and speed (i.e. attack) with physical sensors.

Adding up the development hours, this is at least a $50,000 pile of junk. Natural inventors take this in stride, often with the motto, "fail early and fail often."

Anyway, we have given up on vibration and pressure-sensing sensors for the time being for the bowing surface. What could be next? The knowledgeable among you will be able to tell in the series of photos in the next posting that we are using something else altogether to sense which string or strings are being bowed and the "dynamics" of this bowing.

Don Rickert

attack, bowing, bowing expression, dynamics, physical, pressure, sensors, surface, synthesizer, technologies, technology, vibration, violin

Comments

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By WebOsPublisher

Tool Mentor: Comparing and Merging Rational Rose Models Using Model Integrator
Tool Mentors
Rational Rose Tool Set
Rational Rose Tool Mentors
Comparing and Merging Rational Rose Models Using Model Integrator
Tool Mentor:
Comparing and Merging Rational Rose Models Using Model Integrator
Purpose
This tool mentor describes how to use the Model Integrator to compare and
merge models.
Related Rational Unified Process information:
Activity: Create Baselines
Activity: Integrate Subsystem
Activity: Integrate System
Overview
This tool mentor is applicable for all operating systems supported by
Rational Rose.
Tool Steps
To compare and merge Rational Rose models:
Prepare the models for merging
Load and compare the models
Merge the models
1. Prepare the models for merging
Before merging models, it is a good idea to check each model with the
Rational Rose Tools menu item. If errors are reported, those errors should be corrected before performing a merge with
the Model Integrator.
2. Load and compare the models
After starting Model Integrator, select the File Contributors menu
item, and then use the Contributors dialog box to load the models.
With the models loaded, Compare mode highlights the differences between two or more models. Conflicts are displayed as well, but in Compare mode, the Merge icons are not displayed. You can switch back and forth between Compare mode and Merge mode, so you can begin a work session in Compare mode and then switch to Merge mode if you decide to merge the models. In Compare mode, you cannot make any changes to the model, and the Merge menu and toolbar functions are disabled.
For
more information on comparing models, see the Comparing Models topic in the
Model Integrator online Help.
3. Merge the models
Merge mode incorporates all of the features of Compare mode, along with additional information to support the decisions you need to make in order to successfully merge model files. Model Integrator supports two types of merge functionality:
Automatic Merge — Model Integrator merges all changes that do not produce conflicts.
Selective Merge — Allows the user to choose the contributor for each difference found between the models to be merged.
Automatic merge takes effect when Model Integrator first enters Merge mode. It creates a recipient model and automatically merges all unchanged or trivially changed nodes into the recipient model for you. If the merged model has nodes that have conflicts, Model Integrator displays an icon at the location of the conflict in the browser window. As you make choices to resolve these conflicts, Model Integrator shows you the results of your merge.
The selective merge feature lets you change the contributor at nodes that have differences as well as conflicts. This can be useful when you do not want to accept all of the changes that a contributor is making to your model. It is also useful when you need to correct more complicated errors such as those discovered by the semantic checking functions.
Note: You must save the merged model, otherwise the results of the merge
will not be available later.
For
more information on merging models, see the Merging Models topic in the Model
Integrator online Help.
Copyright
© 1987 - 2001 Rational Software Corporation
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Rational Unified
Process

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