Editing Audio with Audacity

Extending Audacity for Audio Annotation

By implementing a cached region selection scheme and automatic label completion, we extended an open-source audio editor to become a more convenient audio annotation tool for tasks such as ground-truth annotation for audio and music classification. A usability experiment was conducted with encouraging preliminary results.

Universität Augsburg Audio Brush : Editing Audio in the Spectrogram

A tool for editing audio signals in the spectrogram is presented. It allows manipulating the spectrogram of a signal at any chosen time-frequency resolution directly and to reconstruct the edited signal in HiFi quality – a capability that is usually not possible with the Fourier or wavelet transformation. Image processing and computer vision methods are applied to the spectrogram in order to id...

Universität Augsburg Audio Brush : Smart Audio Editing in the Spectrogram

Starting with a novel audio analysis and editing paradigm, a set of new and adaptive audio analysis and editing algorithms in the spectrogram are developed and integrated into a smart visual audio editing tool in a “what you see is what you hear” style. At the core of our algorithms and methods is a very flexible audio spectrogram that goes beyond FFT and Wavelets and supports manipulating a si...

The audacity of determination.

Visual Audio: An Interactive Tool for Analyzing and Editing of Audio in the Spectrogram

We present a tool for analyzing and editing audio signals in the visual domain. As visual representation we use spectrograms, which give descriptive information about the sound. This allows analysing and editing audio in a " what you see is what you hear " style. Gabor analysis and synthesis serves as a basis to create images and recreate audio signals from the edited images in hi-fi quality. A...