SUBJECT CONTENT
1. Study direction data
1.1 Institution
1.2 Faculty
1.3 Department
1.4 Domain
1.5 Level
1.6 Study program
2. Subject matter data
2.1 Subject matter
2.2 Course holder
2.3 Laboratory/Seminar holder
2.4 Year of study I
2.5 Semester
West University of Timisoara
Chemistry Biology Geography
Biology-Chemistry
Chemistry
Master
Forensic Chemistry
IT investigative techniques and audio-video
Dr. Teodor Petrita
Dr. Teodor Petrita
II 2.6 Evaluation
V 2.7 Subject type
Ob-compulsory, Opelective. F-optional
3. Total estimated time (teaching hors per semester)
3.1 Hours per week
3
from which: 3.2 cours
3.4 Total hours in teaching plan
42
from which: 3.5 curs
Total time distribution:
Study of course notes and references
Supplementary study in library/ specific platforms
Seminar/ Laboratory/Essay/Report preparation
Tutorial activities
Examination
Other activities ……………………………………
3.7 Total hours of individual study
98
3.8 Total hours per semester
42
3.9 Credits
4
4. Conditioned disciplines (if it is the case)
4.1 Curriculum conditioned subjects

4.2 Conditined subjects by competences

5. Required conditions (if it is the case)
5.1 For course progress
1
14
3.3 seminar/laboratory
3.6 seminar/laboratory
C
2
28
hours
42
24
22
4
6
Mathematics (logarithmic function, the integral defined),
Physics (electricity - electric power, Ohm's law, optics lenses, focal length
computer use
recapitulation of the basics of mathematics and physics
- Appropriate use of specific concepts by creating a mindset
and a complete knowledge base needed to address topics of
research in the field
5.2 For seminar/laboratory progress
Know the theoretical principles and experimental methods.
-explain the experimentally obtained results and charts
- acquisition of sounds and images for processing
- Interpretation of analysis obtained experimentally and
explain the process of sampling (audio and video),
compression, spectral analysis
- simulated attacks on some files and systems, explanation and
analysis
Transversal competences
Professional competences
6. Specific competences
C1.3 Application of integrated conceptual and methodological apparatus for resolving complex
situations in forensic chemistry.
C2.3 Using advanced techniques correlated analysis in the forensic field
C3.2.Evaluarea options for critical stages of investigation in forensic chemistry
C4.1.Analiza critique of an article / report specialized high degree of difficulty.
CT1 - Making complex professional tasks effectively and responsibly in compliance with industryspecific ethics
7. Subject objectives
7.1 General objective
7.2 Specific objectives
Understanding proper phenomenology
Know the theoretical principles and experimental methods.
• Understand the concepts of phenomenology and basic theoretical results
of phenomenology.
• Acquiring fundamental theoretical principles and skills using
mathematical apparatus
• Understand and explain the acquisition, storing, processing and
transmitting digital information
• Ability to analyze and interpret the theoretical results and their
comparison with experimental data
• Forming a interdisciplinary vision
Investigating bibliography
• Undertake a study / project with interdisciplinary
• Use of techniques and programs necessary to achieve the final project:
• Internet search
8. Content
8.1 Course
1. Alternating flow. Monochromatic signals.
Specific sizes: voltage, current, power, energy and
Teaching methods
Power Point presentations,
interactive discussions,
Observations
frequency. Amplification and attenuation.
explanations
Logarithmic representation of intensity and power.
2. Electronic, Microprocessor Systems. Binary
representation of numbers. Standard ASCII. Data
Files. Racks for storing data.
3. Analysis analog signals: Fourier series and
transform. The spectrum of a signal. Parseval's
theorem. Signal filtering. Noise.
4. Terms acoustics. Where acoustic versus electric
signals. Auditory organ. Sound transducers: speaker
and microphone. Directivity diagrams. Echo
measurement. Ultrasound and infrasound.
Digital 5.Semnale: sampling and quantization.
Digital sound processing systems.
6. Transformata discrete Fourier (DFT). Spectral
analysis of digital signals. Human vocal apparatus.
Speaker recognition.
Digital 7.Compresia (I). Compression systems for
audio signals. Loss of information compression.
Mp3 algorithm.
Digital 8.Compresia (II). Systems to archive files.
Cryptography. Steganography.
9. Optic sistems. Photographic objective. Imaging.
Eye. Black analog TV signal.
10. Capture semiconductor image sensors. Color
television. Flow data and image formats.
Digital 11.Compresia (III). Discrete cosine
transform (DCT). Compression of still images
(JPEG).
Digital 12.Compresia (IV). Moving Image
compression (MPEG).
13. Computers. Communication protocols. E-mail
service. Electronic Signature. Communications
expertise.
14.Expertise systems. Expertise files. Expertise AV
records.
References
1. Mozayani,A., Noziglia, C., The Forensic Laboratory Handbook: Procedures and Practice, Humana Press, New
Jersey, 2006
2. Kent,K. et al. Guide to Integrating Forensic Techniques into Incident Response, National Institute of Standards
and Technology, US Department of Commerce, 2006
3. Jansen,W.,Ayers,R.,Guidelines on Cell Phone Forensics, National Institute of Standards and Technology, US
Department of Commerce, 2007
4. Grundy, B.J.,The Law Enforcement and Forensic Examiner Introduction to Linux :A Beginner's Guide,
ftp://ftp.hq.nasa.gov/pub/ig/ccd/linuxintro/
5. Wiles, J. et al, Guide to E-Discovery and Digital Forensics, Syngress Publishing, Inc./Elsevier, Inc., 2007
6. Bovik, Al, The Essential Guide to Image Processing, Academic Press/Elsevier,2009
7. Smith, S. W., The Scientist and Engineer's Guide to Digital Signal Processing, http://www.dspguide.com/
8. Orphanidis, S.J., Introduction to Signal Processing, http://www.ece.rutgers.edu/~orfanidi/intro2sp/
9. Cohen, K.,Digital Still Camera Forensics,Small Scale Digital Device Forensics Journal, Vol. 1, No. 1, June
2007
10. Farid, H., Digital Image Forensics, http://www.cs.dartmouth.edu/farid/Hany_Farid/Tutorials/Tutorials.html
11. Mahler,R.C., Audio Forensic Examination: Authenticity, enhancement, and interpretation, IEEE Signal
Processing Magazine, March 2009
12.Grigoras, C., Forensic Audio System, IAFP Annual Conference, 2002, Moscow
8.2 Seminar/laboratory
1. Electrical quantities (seminar)
2. I. Analysis time sound processing.
3. Sound Processing II. Frequency Analysis.
4. Sound processing III. Speaker recognition.
5. Sound Processing IV. audio compression
6. Memory. Analysis files.
7. Optics and image acquisition (seminar)
8. Photos for processing and analysis
9. Video Processing and Analysis (I)
10. Video processing and analysis (II)
11. Encryption
12. Analysis of e-mail
13. File Recovery
References
Same as for the course
Teaching methods
Laboratory reports,
discussions, explanations,
Laboratory, working with
devices
Observations
9. Correspondence between the discipline content and the expectations of the representatives of
epistemic community, professional associations and employers

10. Examination
Activity
10.1 Evaluation
type
criteria
10.4 Course
10.2 Evaluation methods
10.3 Fraction in final mark
• continuous testing throughout the
semester
• answers to exam (final evaluation)
Support default theme essay
10.6 Minimum standard of performance
 • Obtaining Note 5 for each of the activities specified in the previous
Time
25.03. 2013
Time of approval
Course holder signature
Dr. Teodor Petrita
10%
10%
80%
Seminar holder titular
Dr. Teodor Petrita
Director of Department Signature
Prof. dr. Adriana Izvoran