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امکانات وب
Praat is an application with which phoneticians can analyze, synthesize, and manipulate speech and create high-quality pictures for their doctoral theses and articles.
Here are some key features of "Praat":
Speech analysis:
- spectral analysis (spectrograms)
- pitch analysis
- formant analysis
- intensity analysis
- jitter, shimmer, voice breaks
- cochleagram
- excitation pattern
Speech synthesis:
- from pitch, formant, and intensity
- articulatory synthesis
Listening experiments:
- identification and discrimination tests
Labelling and segmentation:
- label intervals and time points on multiple tiers
- use phonetic alphabet
- use sound files up to 2 gigabytes (3 hours)
Speech manipulation:
- change pitch and duration contours
- filtering
Learning algorithms:
- feedforward neural networks
- discrete and stochastic Optimality Theory
Statistics:
- multidimensional scaling
- principal component analysis
- discriminant analysis
Graphics:
- high quality for your articles and thesis
- produce Encapsulated PostScript files
- integrated mathematical and phonetic symbols
Programmability:
- easy programmable scripting language
- communicate with other programs
- (the sendpraat source code)
- create hypertext manuals with sound I/O
Portability:
- machine-independent binary files
- read and write many sound and other file types
Configurability:
- grow or shrink menus
- save prefs for fonts, views, sound devices.
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