| Signal Path Overview (Film Sound) | |
| Signal Path |
MICROPHONE
|
ACOUSTIC
ENERGY
rapidly changing air pressure |
TRANSDUCER (changes one form of energy into another) |
ELECTRICAL ENERGY |
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(MICROPHONE LEVEL) |
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IMPEDANCE
(LOW - HIGH) |
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| POLAR
PATTERN:
•CARDIOID •OMNI •SHOTGUN |
|
REQUIRES A BALANCED
CABLE
USING XLR 3 PIN CONNECTORS |
|
| Signal Path |
RECORDER
|
| RECORDER | SYNCHRONIZATION: | TIME CODE | PILOT TONE |
 |
(1) COMMON TIMEBASE (CRYSTAL, ETC.)
(2) CABLE LINK (3) WILD (4) SAME MEDIA (VIDEO) |
ANALOGUE SIGNAL WHICH CONTAINS TIME (LOCATION) AND OTHER (SMALL) INFORMATION | TIMEBASE (SPEED) CORRECTION ONLY |
| ANALOGUE:
NAGRA SONY WALKMAN PRO MULTITRACK VIDEO RECORDER |
DYNAMIC PROCESSING:
INPUT ATTENUATION MIC PREAMP COMPRESSOR LIMITER HI-PASS FILTER |
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| DIGITAL:
DAT NAGRA DIGITAL COMPUTER VIDEO RECORDER |
METERING:
VU METER PEAK MODULOMETER (NAGRA) |
| Signal Path |
TRANSFER
|
| RECORDER
|
|
ANALOGUE TO DIGITAL CONVERTOR
USUALLY PART OF THE DIGITAL AUDIO WORKSTATION (COMPUTER) |
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TIME CODE
|
•SAMPLE RATE (NYQUIST
THEOREM)
•DYNAMIC RANGE (QUANTIZATION) •ALIASING •QUANTIZATION ERROR |
SOUND DESIGNER II (SDII)
AIFF .WAV (PC) ETC. |
|
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MAY BE USED TO SYNCHRONIZE TRANSFER AND/OR TO LABEL MATERIAL FOR FUTURE REFERENCE | FILE MANAGEMENT, FILE SIZE |
| Signal Path |
MIXING
|
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 |
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TIME CODE
- LONGITUDINAL (LTC) - VERTICAL INTERVAL (VITC) (LOCATES)
|
REFRESHER
JAM SYNC |
SYNCHRONIZER |
 |
SIGNAL PROCESSOR OR D.A.W. PLUG-INS/Various
APPLICATIONS |
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 |
 DIGITAL |
MODULAR DIGITAL MULTITRACK |
S/PDIF (RATE)
MTC (LOCATION) |
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WORD CLOCK (VIA CARD)
MIDI/MIDI TIME CODE (VIA CARD OR EXTERNAL I/O) SCSI OR USB (COMPUTER) S/PDIF (VIA CARD) AUDIO (INTERNAL/BUILT-IN/EXTERNAL SOUND CARD) RS422 SERIAL (COMPUTER) |
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