Speech editing - practical

Speech editing is the analogue to text editing, but in the domain of the physical acoustic signal.

It involves:

1. Planning and recording a speech signal, preferably digital, e.g. on a DAT recorder.
2. Copying this signal on to a computer hard disk (either via an analog/digital converter, if the signal is not already digital, or via a digital interface).
3. Loading the digital signal file into signal editing software.
4. Visualising the waveform of this signal as an oscillogramme by means of the software.
5. Marking segments of the signal for processing by means of the software.
6. Processing the marked segments of the signal (cutting, adding, filtering) by means of the software.
7. Storing the processed signal.

This procedure will be demonstrated in class by myself and replicated by yourselves, initially using COOLEDIT, later using Praat, an excellent freeware phonetics software.