Unit 8 Digital Signal Processing

 

Abbreviations Contextual use of prepositions DSP DSP research activities Audio & image

 

LEAD-IN: What is Digital Signal Processing?

 

The signals relevant for digital signal processing are not of digital nature at all. Before the digital part of a

 

system starts operation, the incoming

 

signals have to be fed into an analog-to-

 

digital-converter. Subsequently, highly

 

complex algorithms can be applied to the

 

digitized signals. With an analog system

 

their realization would not be possible.

 

Examples for such algorithms are speech

 

coding, noise suppression, acoustic echo

 

compensation, speech recognition,

 

speaker localization and identification as

 

well as compression of speech and video

 

data (MP3 resp. MPEG).

 

1. What concepts do you think of when you look at the picture? Give your own interpretation of what DSP is. Complete the diagram below with the words and terms concerning the Digital Signal Processing field.

 

____________________

 

 

DSP

 

__________	__________
	__________

 

PRONUNCIATION

 

2. Make sure you pronounce the following words properly:
analog	['ænəlɔg]	manipulation	[məˌnɪpju'leɪʃ(ə)n]
processing	['prəusesɪŋ]	require	[rɪ'kwaɪə]
radar	['reɪdɑː]	data	['deɪtə]
discretization	[dısˌkriːt(a)ɪ'zeɪʃ(ə)n]	reinforcement	[ˌriːɪn'fɔːsmənt]
sample	['sɑːmpl]	autocorrelation	[ˌɔːtəuˌkɔrə'leɪʃ(ə)n]
circuit	['sɜːkɪt]	sequence	['siːkwən(t)s]
equalization	[ˌiːkwəlaɪ'zeɪʃ(ə)n]	measuring	['meʒ(ə)rɪŋ]