Cosimi_Elettroacustica_Catena audio analogica
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Transcript of Cosimi_Elettroacustica_Catena audio analogica
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A proposito di Elettroacustica...La catena audio analogica:
qualche spunto di riflessione
Enrico Cosimi - 2015Salerno - Liceo Musicale “Alfano I”Laboratori di Formazione Tecnologie Musicali19-20-21 Marzo 201526-27-28 Marzo 2015
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• In generale, per apprezzare le comodità della tecnologia digitale nell’analisi, nella gestione e nella riproduzione del suono, è sempre interessante fare riferimenti al vecchio mondo analogico - se non altro, per rendersi conto di quanta strada è stata fatta...
• Da questo punto di vista, conviene comodamente suddividere il percorso audio nei quattro momenti di acquisizione, immagazzinamento, modifica e riproduzione - tanto per rispettare “le tradizioni”...
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AUDIO ANALOGICO: IL PRIMO ANELLOI TRASDUTTORI
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Trasferire analogicamente il suono
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TEMPO
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TEMPO
AMPIEZZA
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I problemi dell’analogico:1) deperibilità del supporto
2) perdità di risposta in frequenza3) perdita di ampiezza
4) peggioramento del rapporto S/N5) problemi di trascinamento (wow &
flutter)
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CATENA AUDIO ANALOGICA
Fase di ACQUISIZIONEFase di IMMAGAZZINAMENTOFase di MODIFICAFase di RIPRODUZIONE
dicevamo...
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I MICROFONI
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IL REGISTRATORE ANALOGICO
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EDITING ANALOGICOE GESTIONE DEL
NASTRO MAGNETICO Il taglio del nastro
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IL MIXER
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MIXER Public Address
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Mixer Recording
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Struttura Mixer P.A.Input Gain
Input Phase
Input Select
Aux Send
Aux Send Pre/Post EQ
Aux Send Pre/Post Fader
Equalization
Mute/Solo
Panpot
Volume Fader
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Struttura Mixer Recording
Input Gain
Input Phase
Input Select
Aux Send
Aux Send Pre/Post EQ
Aux Send Pre/Post Fader
Equalization
Mute/Solo
Panpot
Volume Fader
RECORDING BUSS
TALKBACK
CONTROL ROOM ≠ MAIN MIX
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Patchbay: modi operativi
• Parallel
• Half-Normalled
• Full Normalled
• Open
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AMPLIFICATORE
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SPEAKERS
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Fine
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