HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
Comments
View Comments: Newest First|Oldest First|Threaded View
gmo_dunes
User Rank
Iron
control mapping
gmo_dunes   12/11/2012 4:42:11 PM
NO RATINGS
hi!

This is an interesting project.

Having had much experience with multi-channel sound diffusion, I believe that some control is lost with your choice of control mapping. Ideally, one should be able to place sounds in the 2D space at will without having it tied to volume. Your control scheme does not allow one to put a very soft sound in the center of the field of perception. Having the loudest sounds at the center where one has the least control over fine angular position is also not optimal.

I would suggest that volume be controlled independently by a slider to one side of the bullseye for the spatial location. That way one could fade in and out a sound anywhere in the sound field. For multiple sounds, use a different shape for each sound, then use color coding to indicate its intensity. Multiple sliders could be used for each sound, but it may be possible to map finger pressure as a 'blob change' to control the volume of the sound directly on the sound field map. There are commercial adaptations of surround panning that may be of help, for example:

http://www.waves.com/content.aspx?id=215

Also, note that there is much DSP work that needs to be done to give the audience a convincing rendering of a particular sound in an exact location. You may need more screen widgets to control those features.

Schaeffer originally used 4 stationary induction coils, arranged just as his speaker positions, that picked up his source sound from a fifth coil in held his hand. True magnetic induction allowed him to place the sound anywhere in the horizontal plane using the front left, right speakers and the rear speaker. The 4th speaker was mounted at the ceiling so that 'up' could be encoded, thus giving the audience a 3D sound experience.



Partner Zone
Latest Analysis
We take a look at 2015's top engineering schools by salary potential for undergraduate students.
If we are going to be creating a network that serves us, one of its most critical nodes will need to be ourselves. This is where wearable technology comes into play.
Researchers at the University of Maryland have achieved a first in lithium-ion battery science: the development of a successful lithium-based battery using one material for all three core components of a battery -- anode, cathode, and electrolyte.
The online Bar Steel Fatigue Database for automotive design engineers has been updated for the fifth time and now contains 134 iterations, or grade/process combinations. It provides better predictability for designing parts with long-term reliability and durability.
FPGAs use programmable fabric to create custom logic, but this flexibility comes at a cost -- usually around 10 times more silicon real estate and 10 times the power dissipation. Can we really claim any FPGA is low power?
More:Blogs|News
Design News Webinar Series
5/21/2015 11:00 a.m. California / 2:00 p.m. New York
5/7/2015 11:00 a.m. California / 2:00 p.m. New York
6/3/2015 8:00 a.m. California / 11:00 a.m. New York
6/11/2015 11:00 a.m. California / 2:00 p.m. New York
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Jun 8 - 12, Everything You Ever Wanted to Know about Filters
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  6 |  7


Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.
Next Course June 2nd-4th:
Sponsored by Proto Labs
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Sponsored Content

Technology Marketplace

Copyright © 2015 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service