CC 1 week 3

Week three in Creative Computing sees us continuing along in the sme vain as in week 2, this being the editing of the same paper sounds recorded for last weeks exercise. The difference this week is that these paper sounds are to be edited using Spear, (Sinusoidal Partial Editing Analysis and Resynthesis) a freeware piece of software that allows to edit sound in the frequency domain as opposed to last weeks exercise using Peak LE which edits in the time domain. Below are some examples by myself of editing sound using Spear.

Sample 1

Sample one used a recording of paper held between the thumbs and blown into similar to the way used when making a sound with a gumleaf. The point where the frequency of the sound reached its peak, the Time Selection tool was used to select the all of the partials from this point to the end of the sample. this section was then Sliced to separate and this section of partials was then dragged to the right, using the Time Offset tool. One partial was then selected from the left hand side of the split sample, then whilst holding down the Shift button another partial was selected from the right hand side. The two selected partials were then joined using Join from the Edit menu. This was then repeated numerous times until multiple partials were joined.

gumjoin.mp3 (This sample has the unedited sample first, then the edited sample)

Sample 2

Sample two used the same paper sound as sample one except that this sample was copied and pasted until there were six identical samples of this sound. Then edited sample one (above). was copied and pasted twice into this sample. These samples were then positioned horizontally using the Sound Offset tool and then manipulated vertically using the Frequency Shift tool. The aim was to recreate the same edited sample as 'Edited Sample 1 (beetpaper.mp3)' that was uploaded in week two using Peak LE (which edits in the time domain) and compare the difficulty or ease of producing a similar edited sample using Spear (which edits in the frequency domain).

beetspear.mp3

Edited Sample 3

This sample used a recording of a piece of paper rubbing against glass which produced squeaking sound with a rubbing sound in the background. The stronger high pitched partials were selected, the selection inverted and then deleted. This left behind just the squeak.

squeaknorub.mp3 (This sample has the unedited sample first, then the edited sample)

Edited Sample 4

This sample took a 8-9 sec rip and stretched using the Time Stretch tool, out to 20 sec.

exslowrip20sec.mp3

Edited Sample 5

This sample used a recording of ripping paper. The Time Region tool was then used to select increments of 0.5 sec. and Slice them to make several separate sections. Using the Frequency Shift tool region 1 moved up 500 Hz, region 2 left as is, region 3 down 500 Hz, region 4 as is, etc.

slowrip2breathe.aiff

Edited Sample 6

One strong partial was selected in this sample, the rest were deleted. This partial was then stretched, then copied and pasted so there were multiple copies of the partial. Each partial then had its frequency raised (Transform menu - Frequency Shift). The first partial was at approx. 110 Hz, each subsequent partial was the raised be increments of 110 Hz to mirror the harmonic series.

harm1.mp3