Speech depersonalization based on the long-term spectrum of voice
- Miroslav Rujzl,
- Milan Sigmund
Abstract
In this article, a new approach for hiding personal information in
speech is proposed. Speech modification is based on the long-term voice
spectrum that reflects the individuality of the vocal tract. The
depersonalized speech signal was objectively evaluated using fundamental
frequency and intelligibility. The advantages of the proposed approach
compared to the traditional technique based on normalization of vocal
tract length are briefly discussed.