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Volledige samenvatting Audio Studio-Media & Entertainment-Vives

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Volledige samenvatting van de theorie het vak "audio studio". Geen praktijk! In de inhoudsopgave kan je zien dat het de volledige theorie omvat.

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Audio studio
Inhoudsopgave
Theorie geluid ............................................................................................................................... 6
Wat is geluid ....................................................................................................................................6
Jonge versus oude mensen...........................................................................................................6
Geluid in grafische weergave: De Fletcher-Munson Equal Loudness Curve ......................................6
Eigenfrequentie ...............................................................................................................................7
Geluid op aarde vs ruimte .................................................................................................................7
Geluidsgolven .................................................................................................................................7
Geluidssnelheid ..........................................................................................................................7
Diagram van een geluidsgolf .........................................................................................................8
Meerdere geluidsgolven ................................................................................................................. 10
Geluidssterkte/volume ................................................................................................................... 10
Bel............................................................................................................................................ 11
Geluidsterkte bij bepaalde afstand ............................................................................................. 11
Het gehoor: biologie van het oor...................................................................................................... 13
De Fletcher-Munson Equal Loudness Curve .................................................................................... 14

Theorie akoestiek ........................................................................................................................16
Geluidsisolatie .............................................................................................................................. 16
Reflection/aborptie/diffusie ............................................................................................................ 17
Reflectie ................................................................................................................................... 17
Absorptie .................................................................................................................................. 18
Diffractie ................................................................................................................................... 18
Studio met akoestische panelen ..................................................................................................... 19
Onderzoek .................................................................................................................................... 19
Galmkamer ............................................................................................................................... 19
Dode kamer .............................................................................................................................. 20
Nagalmtijd aka RT60 aka reverberatietijd ......................................................................................... 20
Korte RT60................................................................................................................................. 20
Middellage RT60 ........................................................................................................................ 20
Lange RT60 ............................................................................................................................... 20
Nagalmtijd in grafiekweergave .................................................................................................... 20
Concertzalen en nagalmtijd ....................................................................................................... 21
Akoestische behandelingen ............................................................................................................ 21
Absorbers ................................................................................................................................. 21
Diffusers ................................................................................................................................... 21
Bass Traps ................................................................................................................................. 21
Akoestiek verbeteren met klein budget ............................................................................................ 22
DIY testen/meten....................................................................................................................... 22
Psycho akoestiek ........................................................................................................................... 22
Immersive sound ........................................................................................................................... 22
Dolby Atmos.............................................................................................................................. 22



1

, Ambisonics ............................................................................................................................... 23
Object gebaseerde audio ........................................................................................................... 23

Theorie het gehoor .......................................................................................................................24
Waarnemen .................................................................................................................................. 24
Menselijk gehoor ....................................................................................................................... 24
Microfoon ................................................................................................................................. 24
Biologie van het oor........................................................................................................................ 24
Buitenoor .................................................................................................................................. 25
Middenoor ................................................................................................................................ 26
Binnenoor ................................................................................................................................. 26
Onze oren = een compressor .......................................................................................................... 27
Adaptatie .................................................................................................................................. 27
Beveiliging ................................................................................................................................. 27
Onze oren = een equalizer .............................................................................................................. 28
Gehoorbeschadiging ...................................................................................................................... 30
Natuurlijk gehoorverlies ............................................................................................................. 30
Onnatuurlijk gehoorverlies ......................................................................................................... 30
Tijdelijke gehoorgrens verschuiving ............................................................................................. 31
Tinnitus ..................................................................................................................................... 31
Symptomen van gehoorbeschadiging ......................................................................................... 31
Psycho-akoestiekvak ..................................................................................................................... 32
De gehoordrempel ..................................................................................................................... 32
Masking .................................................................................................................................... 32
Auditieve illusies ....................................................................................................................... 32
We bekijken nu: ......................................................................................................................... 32
De richtingbepaling v. ons gehoor ............................................................................................... 33
Het Cocktailparty-effect ............................................................................................................ 34
Het MCGurk-effect .................................................................................................................... 35

Theorie digitaal audiosignaal........................................................................................................37
De basis van een digitaal audiosignaal ............................................................................................ 37
Digitaal geluid ................................................................................................................................ 37
Analoog geluid........................................................................................................................... 37
Digitaal geluid en de omzetting van/naar analoog ........................................................................ 38
Audioresolutie ............................................................................................................................... 39
Bith depth ................................................................................................................................. 39
Sample Rate .............................................................................................................................. 40
Kilobit per seconde .................................................................................................................... 40
Voor- en nadelen digitaal geluid .................................................................................................. 41
Loudness (LUFS) ............................................................................................................................ 41
LUFS: Loudness Units Full Scale ................................................................................................. 41
Richtlijnen platformen ............................................................................................................... 42
Toepassen LUFS op je audio ....................................................................................................... 42
Bestandsformaten, Codecs, Extensies ............................................................................................ 42
Ongecomprimeerde audio: WAF en AIFF ..................................................................................... 42
Gecomprimeerde audio: FLAC, ALAC, MP4 en MP3, aac en wma .................................................. 43

Theorie: Channel Strips & Audio Effects ........................................................................................45
Redenen om functies te gebruiken .................................................................................................. 45
Effecten en pyscho-akoestiek ......................................................................................................... 45


2

, Chanel Strip .................................................................................................................................. 45
Volgorde Chanel Strip ................................................................................................................ 45
Mengtafel .................................................................................................................................. 46
1. Mic Pre-Amp met Input Gain .................................................................................................. 46
Ingangsmodule mengtafel uitgelegd a.d.h.v. een voorbeeld .......................................................... 47
Proces voordat signaal 1ste versterkingstrap bereikt ...................................................................... 47
PAD-switch aka verzwakker ........................................................................................................ 47
Phase-switch aka fase-omkeer schakelaar .................................................................................. 48
2. Equalizing (EQ) ...................................................................................................................... 48
Parametrische EQ ...................................................................................................................... 49
EQ-filters .................................................................................................................................. 49
High Pass Filter aka Laagaffilter .................................................................................................. 49
Low Pass Filter aka Hoogaffilter .................................................................................................. 50
High Shelf en Low Shelf filters..................................................................................................... 50
Het Frequentieqpectrum van Spraak ........................................................................................... 50
Werkflow Reaper & Audition ....................................................................................................... 52
3. Gate ..................................................................................................................................... 52
4. Compressor .......................................................................................................................... 53
Gebruik ..................................................................................................................................... 54
Threshold aka grenswaarde ........................................................................................................ 54
Ratio ......................................................................................................................................... 54
Attack ....................................................................................................................................... 54
Release ..................................................................................................................................... 54
Output Gain/Make-up Gain ........................................................................................................ 54
Compressor instellen voor een podcast stem .............................................................................. 55
Compressor instellen voor Commerciële voice-over .................................................................... 55
5. Delay .................................................................................................................................... 56
Delaytijd ................................................................................................................................... 56
Feedback .................................................................................................................................. 56
Hoogdemping............................................................................................................................ 56
Dry/wet ..................................................................................................................................... 56
6. Reverb/galm .......................................................................................................................... 57
Natuurlijke galm ........................................................................................................................ 57
Galmkamer aka Reverberation Room .......................................................................................... 58
Spring Reverb aka verengalm ...................................................................................................... 58
Platte Reverb aka plaatgalm ....................................................................................................... 59
7. Volume Fader of Knop ............................................................................................................ 59
8. Pan ....................................................................................................................................... 59

Materialenkennis: Audio Interface ................................................................................................60
Analoge naar digitale conversie aka ADC ......................................................................................... 60
Digitale naar analoge conversie aka DAC ......................................................................................... 60
Field-, Portable-, Handheld-, PCM Recorder .................................................................................... 61
Desktop audio interface ................................................................................................................. 61
Mixing Desk/ Console..................................................................................................................... 62
4 soorten audio mengpanelen .................................................................................................... 62
Rodecaster Pro II ........................................................................................................................... 63
Multitrack recording ................................................................................................................... 63
Verschillende delen ................................................................................................................... 63
Verbinden met Reaper ............................................................................................................... 64



3

, Microfoons aansluiten ............................................................................................................... 64
Instellingen op de Rodecaster Pro II ............................................................................................ 64

Materialenkennis: microfoon .......................................................................................................66
Dynamische microfoon vs condensator microfoon .......................................................................... 66
Dynamische microfoon .............................................................................................................. 66
Condensator microfoon ............................................................................................................. 67
Verschillen tussen dynamische en condensator microfoon .......................................................... 68
Lavalier vs Shotgun ........................................................................................................................ 68
Lavalier microfoon ..................................................................................................................... 68
Shotgun microfoon .................................................................................................................... 69
Directionaliteit ............................................................................................................................... 69
4 directionaliteiten van microfoons ............................................................................................. 70
Neveneffecten van microfoongebruik .............................................................................................. 71
Het proximity effect ................................................................................................................... 71
Feedback/rondzingen ................................................................................................................ 71

Materialenkennis: Kabels en Connectoren....................................................................................72
Eerste opsplitsing: speakerssignaal vs microfoon-/lijnsignaal ........................................................... 72
Gebalanceerd vs ongebalanceerd signaal ....................................................................................... 72
Ongebalanceerd signaal ............................................................................................................ 72
Gebalanceerd signaal ................................................................................................................ 73
Fantoomvoeding ............................................................................................................................ 74
Impedantie .................................................................................................................................... 75
Overige audiokabels en connectoren .............................................................................................. 75
RCA-kabel ................................................................................................................................. 75
Speakon-kabel .......................................................................................................................... 75
USB-kabel ................................................................................................................................. 76

Audiotechnieken: Luisterverhalen ................................................................................................77
Wat is het ...................................................................................................................................... 77
Waarom is het zo krachtig ............................................................................................................... 77
Bouwstenen van een sterk luisterverhaal......................................................................................... 77
Good practice-Batavia ................................................................................................................... 77

Audiotechnieken: podcasting .......................................................................................................78
Good practices .............................................................................................................................. 78
Podcast maken in 5 stappen ........................................................................................................... 78
Stap 1: inhoudelijke vragen ......................................................................................................... 78
Stap 2: aan de slag..................................................................................................................... 78
Stap 3: Interviewen en audiostorytelling ...................................................................................... 78
Stap 4: Technisch beter worden .................................................................................................. 79
Stap 5: je podcast publiceren en financiën .................................................................................. 79
Methodekit for podcasting .............................................................................................................. 79

Audiotechnieken: Klank voor video ...............................................................................................80
Belang geluid bij video .................................................................................................................... 80
Rol klankman en klankvrouw .......................................................................................................... 80



4

, Locatiegeluidopname ................................................................................................................ 80
Selectie en bewerking van geluidseffecten .................................................................................. 80
Mixing van audio ........................................................................................................................ 81
Optimalisatie van geluidskwaliteit .............................................................................................. 81
Samenwerken met andere teamleden ......................................................................................... 81
Dialoog opnemen .......................................................................................................................... 81
Overhead Stand aka Boom Stand.................................................................................................... 82
Optimale microfoonpositionering-Overhead stand ...................................................................... 82
Backstory ...................................................................................................................................... 83
Praktische tips ............................................................................................................................... 84
Room Tone .................................................................................................................................... 84
Room Tone opnemen ................................................................................................................. 84
Kamerreflecties minimaliseren ....................................................................................................... 85

Audiotechnieken: Foley, Jingle & Sound effect ..............................................................................86
Foley ............................................................................................................................................. 86
Sound effects ................................................................................................................................ 86
Jingles ........................................................................................................................................... 87
Audio-logo..................................................................................................................................... 87




5

,Theorie geluid
Wat is geluid
= fysische trilling die door een medium zoals lucht, water, gas of vaste stoffen reist en
door onze oren opgevangen wordt.
Onze oren hebben gehoorzenuwen die deze trillingen omzetten in elektrische signalen.
Deze elektrische signalen worden door het zenuwstelsel naar de hersenen verzonden en
deze interpreteren dit als geluid.


Jonge versus oude mensen
=Jongere mensen horen meer frequenties dan oudere mensen
Hoe ouder je bent, hoe minder hoge frequentie je gaat horen

• Jonge mensen horen tussen de 20 Hertz en 20.000 Hertz
-20Hertz vb. de bas op een fuif die je ook voelt in je lichaam
-20.000Hertz vb. de wind die waait en geluid maakt

• Infrasoon: alles onder de 20 Hertz
=> Onhoorbaar voor de mens.
Walvissen en olifanten kunnen binnen het infrasone gebied horen

• Ultrasoon: alles boven de 20.000Hertz
=> Onhoorbaar voor de mens.
Hond kan wel horen (vanaf+/-15Hertz) tot +/-50.000 Hertz → er bestaan fluitjes
hiervoor

Geluid in grafische weergave: De Fletcher-Munson Equal
Loudness Curve

Y-as: decibels
X-as: hertz met 20Hertz al
laagste

Interpretatie tabel
-We horen 40 Hertz maar bij
60decibels anders hoor je die
niet
-Bij 1000 Hertz zien we 0db
=> 0db is geen pure stilte!!
maar een naald laten vallen
werd vastgelegd op 0 decibel
-Verder gaat hij onder de 0db
lijn omdat we de naald nog
horen vallen


6

, Eigenfrequentie
= frequentie waarmee een voorwerp trilt

Als je tikt/klopt op voorwerp=> voorwerp trilt op eigen snelheid => voorwerp maakt
(voorwerp specifiek) geluid met eigen frequentie

Getraind oor => kan onderscheiden als er op hout, kunststof, glas, metaal,… getikt wordt


Geluid op aarde vs ruimte
Definitie geluid
Fysische trilling die door een medium zoals lucht, water, gas of vaste stoffen reist en
door onze oren opgevangen wordt.

Medium nodig
Geluid wordt geproduceerd door drukveranderingen binnen een medium.
Er is een medium nodig, dit is meestal lucht

Aarde vs ruimte
-Op aarde: hebben we een atmosfeer die is cruciaal om geluid te kunnen waarnemen
-In de ruimte: geen lucht, waardoor er geen geluid waarneembaar is


Geluidsgolven
Pers/ding die geluid maakt doet geluidsmoleculen trillen die zich steeds
verder verplaatsen => zoals steentje die je in het water gooit

Sinusgolf: voorstelling van
een geluidsgolf


Compressie: luchtmolecule
dicht bij elkaar

Rarefactie: luchtmolecule
ver van elkaar




Geluidssnelheid
= Is afhankelijk van de temperatuur & druk v.h. medium.




7

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