Subject: Re: acoustic scale in vocal sounds From: Roy Patterson <rdp1@xxxxxxxx> Date: Tue, 6 Sep 2011 17:49:49 +0100 List-Archive:<http://lists.mcgill.ca/scripts/wa.exe?LIST=AUDITORY>Hello Brittany, As you grow up two things change, the size of your vocal folds and the length of your vocal track. Both changes affect the acoustic scale of the sound you produce. The form of the acoustic scale information in vocal sounds is described at the start of http://www.acousticscale.org/wiki/index.php/Category:Auditory_Image Have a look at the first figure. The change in acoustic scale that takes place as a child grows up into an adult is described at the start of http://www.acousticscale.org/wiki/index.php/Category:Auditory_Image Have a look at the first figure. The acoustic scale web page also contains journal articles on the perception of sounds with varying acoustic scale. The morphed sounds on the acoustic scale web site were morphed using Hideki Kawahara's STRAIGHT. There is now a real time version of STRAIGHT by Hideki Banno which has a slider that changes a man's voice into a woman's by steps or vice verse. It is great for public demos. I do not know what Audacity and Garage Band do. Regards Roy P On 06/09/2011 16:56, Brittany Guidone wrote: > Dear List, > > To explain more about my original question: > > I mainly want to know if "morphing" or "changing" the pitch of a male voice by positive 4 semi tones will change the components of the original male voice (before it was morphed) in a way that will make the two voices have different components or "make up" in comparison to one another, besides the fact that they will have different pitches. > > In other words, when the pitch of a voice is changed in audacity or garage band then what other components of the voice are changed (besides the pitch shift)? > > -Brittany > Sent from my Verizon Wireless BlackBerry -- Roy Patterson Centre for the Neural Basis of Hearing Department of Physiology, Development and Neuroscience University of Cambridge, Downing Street, Cambridge, CB2 3EG phone +44 (1223) 333819 fax 333840 email: rdp1@xxxxxxxx http://www.pdn.cam.ac.uk/groups/cnbh/ http://www.AcousticScale.org