Course detail

Recording Studio Technology

FEKT-BPC-STEAcad. year: 2024/2025

Relations between subjective and objective characteristics of sound and audio signal transfer in electrical systems. Mixing console: structure, channel strips, connection to buses, outputs, digital mixing desks, DJ mixers. Measurement and indication of the level, spectrum and envelope of audio signals. Audio effects: equalizers, dynamic processors, room simulation, guitar effects, phase vocoder, spectral processing. Digital audio signal processing, A/D and D/A conversion, dithering, digital audio interfaces. Digital audio recording, hard disc recording, non-destructive editing, sound cards. Computer digital audio workstations, plug-in technology. MIDI communication interface, devices, bus interconnection. Synchronization, relative and absolute time codes. Control of sound, light and stage equipment.

Language of instruction

Czech

Number of ECTS credits

6

Mode of study

Not applicable.

Entry knowledge

The knowledge of basic laws and quantities in electrical circuits is required as well as the knowledge of the characteristics of electric circuit elements, circuit behaviour with inertia elements, circuit topologies with operational amplifiers and their characteristics, periodical and non-periodical signal spectra, continuous- and discrete-time systems. The student who enrols on the course should be able to use instruments for the measurement of electrical voltage, current, and resonant frequency, waveform generators and oscilloscopes.

Rules for evaluation and completion of the course

Evaluation of study results follows the Rules for Studies and Examinations of BUT and the Dean's Regulation complementing the Rules for Studies and Examinations of BUT. Up to 10 points are awarded for tests in theoretical knowledge in laboratory exercises. Up to 24 points are awarded for correct results and elaboration of all laboratory exercises and 6 points for submitting of project in software DAW. The minimal scope of the elaboration of particular laboratory exercises and complementary questions are specified by a regulation issued by the guarantor of the course and updated for every academic year. Up to 40 points are given for the final written examination and it is necessary to get at least 15 points for its successful completion. Up to 20 points are awarded for the final oral examination which consists of 10 groups of questions according to the course syllabus.
It is obligatory to work through all laboratory exercises in regular or alternative terms to complete the course. Other forms of checked instruction are specified by a regulation issued by the guarantor of the course and updated for every academic year.

Aims

The aim of the course is to make students familiar with the operation principle and use of analog and digital audio equipment, computer digital audio workstations and their installation in sound studios.
After course completion, students are to:
- describe the structure of the mixing console, explain its operation and use it for recording or sound reinforcement,
- explain the principles of measurement of level and other parameters of analog and digital audio signals,
- describe the structure and operation principle of the basic types of audio effects, describe the type of transformation which occurs in them, and use them for audio processing,
- explain the principle of digital audio signal processing and transmission,
- explain the principle and structure of digital audio signal hard disc recording (HDR),
- describe the structure of various types of audio interfaces and structure of digital audio workstations (DAW),
- describe the structure of the MIDI protocol, enumerate the messages it uses, and use them for controlling studio equipment,
- describe the types of synchronization signal, choose the proper type of synchronization for a given system,
- describe the structure of the DMX512 protocol and use it for controlling light and stage equipment.

Study aids

Not applicable.

Prerequisites and corequisites

Not applicable.

Basic literature

REISS, Joshua D a Andrew P MCPHERSON. Audio effects: theory, implementation and application. Boca Raton: CRC Press, 2014, xiii, 353 s. ISBN 978-1-4665-6028-4 (CS)
SCHIMMEL, J. Studiová a hudební elektronika. Studiová a hudební elektronika. Brno, Vysoké učení technické v Brně. 2012. (158 p.). ISBN 978-80-214-4452-2.
Watkinson, J.: The Art of Digital Audio, 3rd ed. Focal Press, 2001. ISBN 0-240-51587-0 (EN)

Recommended reading

Forró, D.: Počítače a hudba,Grada, Praha 1994 (CS)
Zölzer, U.: DAFX - Digital Audio Effects (Second Edition). John Wiley & Sons, 2011. ISBN: 978-0-470-66599-2. Zölzer, U.: DAFX - Digital Audio Effects (Second Edition). John Wiley & Sons, 2011. ISBN: 978-0-470-66599-2. (EN)

Classification of course in study plans

  • Programme BPC-AUD Bachelor's

    specialization AUDB-TECH , 2 year of study, summer semester, compulsory
    specialization AUDB-ZVUK , 2 year of study, summer semester, compulsory

  • Programme BPC-TLI Bachelor's 0 year of study, summer semester, elective

Type of course unit

 

Lecture

26 hod., optionally

Teacher / Lecturer

Syllabus

  1. Sound waves: audio signals and systems, sound propagation and perception.
  2. Audio signals in the electrical system: audio signal levels, connection of audio devices, transmission of multi-channel audio signals, audio signal distribution in the electrical system.
  3. Audio devices: basic parameters of analog and digital audio devices, normalization of signal level, installation of audio devices.
  4. Digital audio signals: AD and DA conversion of audio signals, digital audio signal formats, basic operations with digital audio signals.
  5. Measurement and display of audio signal properties: level indication, loudness measurement, spectrum display, indicators for stereophonic and surround sound signals.
  6. Mixing desk: block diagram, split and in-line architecture, input and output units, buses, digital mixer.
  7. Digital audio recording: linear and non-linear digital audio recording, HDR systems, computer DAW systems, sound cards, basic procedures of non-linear audio recording, audio files.
  8. Digital audio interfaces: time-division multiplex, sync codes, point-to-point interfaces (AES3, SPDIF, MADI, ADAT), network interfaces (EtherSound, AES50, Dante, AVB), bus interfaces
  9. Audio effects 1: control circuits, frequency filtering, dynamic processors, delay line effects, modulation effects.
  10. Audio effects 2: spatial sound effects, simulation of acoustic spaces, non-linear audio effects, changing the length and pitch of the audio signal.
  11. Control and synchronization of studio equipment: MIDI interface, DMX512, ACN, ArtNet, Sony 9-pin, synchronization of studio equipment, SMPTE / EBU code, MIDI Time Clock.
  12. Computer audio processing systems: real-time audio signal processing, plug-in technology, host-based and DSP-based systems for PC audio processing. 

Laboratory exercise

39 hod., compulsory

Teacher / Lecturer

Syllabus

  • Getting familiar with the laboratory, numerical exercises
  • task no. 1: Signal routing in an analog mixing console
  • task no. 2: Measurement of sound card and mixing desk parameters
  • task no. 3: Signal routing in a digital mixing desk
  • task no. 4: Digital audio hard disk recording
  • task no. 5: Audio effects with a delay line
  • task no. 6: Audio effects for adjusting the dynamics of the signal
  • task no. 7: Audio effects with linear and non-linear filters
  • task no. 8: Connecting studio devices using the Dante network
  • task no. 9: Control of audio effects using MIDI protocol
  • task no. 10: Control of stage technology using DMX protocol
  • Alternate date of measurement, test from laboratory exercises