Voice Distortion

Voice Distortion - The modulation is adjustable via 2...

Info iconThis preview shows pages 1–6. Sign up to view the full content.

View Full Document Right Arrow Icon
Voice Distortion By Tom Krack
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Distorting voice with L137 Board Voice maskers have been commercially available for a long time Digital signal processing makes this task easier and more adjustable This is a simple project which highlights some of the benefits of processing signal digitally It is possible to change one’s voice to sound like someone else, but our board would probably not be able to accomplish this in real time
Background image of page 2
Simple voice distortion To distort a voice to the point of masking the user’s identity is very easy, but keeping the voice recognizable takes a little more work The input signal is multiplied by a sine wave To make the voice recognizable, the sine wave’s amplitude and frequency are adjustable while program is running
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Simple voice distortion (cont) My program effectively just modulates a voice signal
Background image of page 4
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 6
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: The modulation is adjustable via 2 sliders There are distort, pass through, and record/distort/playback functions selectable by another slider while program is running Complex voice distortion To mask ones identity by making someone sound like someone else you must deconvolve the signal into pitch and tone You can then adjust the pitch to mask identity The new pitch must be convoluted with the tone This is much more processor intensive and requires far more coding beyond the scope of this class This was my original idea Results My project is much simpler than I intended, but it works Some adjustment may be required for different voices, but this feature is available during runtime with GEL sliders It still doesnt work well with music, just the voice range...
View Full Document

Page1 / 6

Voice Distortion - The modulation is adjustable via 2...

This preview shows document pages 1 - 6. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online