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
Take a look through these film and TV robots from 1990 through 1994.
The Soofa is an urban smart bench that provides mobile device charging as well as collects environmental information via wireless sensors.
Sciaky, provider of electron-beam additive manufacturing (EBAM) services, will start selling these machines commercially in September. The company has used its EBAM 3D printing technology for making very large, high-value, metal prototypes and production parts for aerospace and defense OEMs.
At this year’s Google I/O, the spotlight was pointed on gender inequality in the high-tech industry. Google has established a new initiative that it hopes will even out the playing field, Made w/Code. Part of this initiative will fund free online courses in basic coding.
Self-driving vehicle technology could grow rapidly over the next two decades, with nearly 95 million “autonomous-capable” cars being sold annually around the world by 2035, a new study predicts.
More:Blogs|News
Design News Webinar Series
7/23/2014 11:00 a.m. California / 2:00 p.m. New York
7/17/2014 11:00 a.m. California / 2:00 p.m. New York
6/25/2014 11:00 a.m. California / 2:00 p.m. New York
5/13/2014 10:00 a.m. California / 1:00 p.m. New York / 6:00 p.m. London
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Aug 4 - 8, Introduction to Linux Device Drivers
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  6


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 Class: August 12 - 14
Sponsored by igus
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Sponsored Content

Technology Marketplace

Copyright © 2014 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service