影视录音常用设备备课讲稿.ppt

影视录音常用设备影视录音常用设备Sound systemWhat we need?lProductionMicrophoneMixerRecorderlPostproductionDAWPost recording systemSound mixing systemProduction sound systemslmicrophone cameralmicrophone mixer cameralmicrophone mixer recorderlmicrophone pre amplifier mixer recorderMicrophoneslShotgunslLavalierslStereoslSurroundsMicrophones _shotgunslShotgunsSennheiser MKH 416 Short Shotgun MicSennheiser MKH 60 Supercardioid Condenser ShotgunSennheiser MKH 70 Long ShotgunSennheiser ME 66 Super Cardioid CondenserSchoeps CMIT5U Super Cardioid Shotgun MicSanken CS1 Short Shotgun MicSanken CS3e Supercardioid Condenser ShotgunNeumann KMR 81 ShotgunNeumann KMR 82i Long ShotgunHow to choose shotguns?lFrequency responseLow cutHigh frequency boostOutofaxis frequency response lDirectional patternCardioidSupercardioidEffective pickup angle (3dB sensitivity decreasing)cardioid 1300, supercardioid 300 400lSensitivity lDynamic rangeSennheiser MKH 416lPower Supply: P or TSennheiser MKH 60Sennheiser MKH 70Sennheiser MKH 416 vs. 60 vs. 70型号4166070指向性超心型超心型(更窄)超心型频响4020k5020k5020k灵敏度（mV/Pa）254050等效噪声级（dB）13(A)24(CCIR)6(A)18(CCIR)5(A)16(CCIR)最大声压级（dB）130125124重量（g）165150180Sanken CS-1lShort shotgunlVery sharp directivity in a 181.5mm length bodylFlat frequency response beyond 20kHz(on axis)lHigh sensitivity 30dB/PalAccepts high SPLs. More than 137dB SPL (1% THD). With no distortion in close miking.lNarrow angle directivity over the entire frequency range.lOverrall rear rejection. 22dB/20kHz. 18dB/10kHz. 27dB/1kHz. 27dB/200Hz.lLight weight. Only 100g. Easy to operate on a boom pole.Schoeps CMIT 5 UlLow coloration of offaxis soundlEven greater immunity to wind noise than a SCHOEPS supercardioidlDirectionality increases smoothly with higher frequencies, which results in a very balanced sonic characterlCapsule and amplifier are built as a single unitSchoeps CMIT 5 U _morelThe sound quality of the CMIT 5 remains consistent even if the microphone is rotated on its axis, since its directional pattern is the same in both the vertical and horizontal planes.Schoeps CMIT 5 U _morelThree pushbuttonactivated filters allow the microphone to adapt to the recording situationHighfrequency emphasis (+ 5 dB at 10 kHz) enhances speech intelligibility, and compensates for highfrequency loss caused by windscreens; A steep lowcut filter (18 dB/oct. below 80 Hz) suppresses wind and boom noise;A gentle lowfrequency rolloff (6 dB/oct. below 300 Hz) compensates for proximity effect.Microphones _supercardioidlSchoeps MK41lSchoeps CCM41Schoeps MK41 and CMC 6lSupercardioid with highly consistent directionality throughout its frequency range. High directivity, comparable to that of a short “shotgun“ microphone up through midrange frequencies.off axis attenuating even more than with a cardioiddirectivity is highly independent of frequency, even sounds arriving off axis and reverberant sound are registered without colorationThe pickup is “drier” and less susceptible to acoustic feedback than any other SCHOEPS capsule typeEven distant placement of the capsule produces a very natural sound pickup. lThis is a real advantage over interferencetube “shotgun” microphones, whose directivity is very frequencydependent exceeding that of a supercardioid only at higher frequencies. Interferencetube microphones are notoriously sensitive to their position in a room, where the shifting patterns of reflections cause corresponding shifts in sound color.lGood to use in room. Schoeps CCM41lSimilar to MK41lCompact micSchoeps vs. 416lSchoeps话筒比416话筒更敏感，手持噪声和移动话筒的噪声都容易串入，用于同期录音时一般在前级加高通/低切滤波器。

该配件需单独购买Microphones _lavalierslLavaliersCountryman B6/B3 Miniature Omnidirectional LavCountryman EMWLectrosonics M150 Omnidirectional LavSanken COS11 Omnidirectional LavSennheiser ME 2 LavSennheiser MKE1/2 Omnidirectional LavTRAM TR50 Omnidirectional LavSony 77B/ECM88How to choose lavalier?lNice soundinglOmnicardioidLess positioning problems (people moving their head all the time)Less sensitive to wind and popinglGood matching to boom miclDynamic range (low distortion at high SPL)lRF interference resistancelPower supply (from AA battery or 48V phantom power on mixer or recorder)lEasy to hideCountryman B6lSmallest lavalier in the worldonly one tenth of an inch (0.1 inch, 2.5mm) in diameterEasily hidden in hair/costumes or glued on performers faces in film, theater and broadcastlChangeable protective capsMoisture resistanceColor options (6 colors)Shape the frequency response for different situations or to match other microphoneslLow distortion at SPL up to 150dB on 48V phantom powerLow handling noiseExcellent rejection of surrounding noiseHigh quality audioCountryman B6 kitslB6 lavalier microphonelKevlar cablelCapslWindscreenlTie clipslCarrying caseCountryman B3lSimilar to B6,but cheaperl0.2 inch in diameterlMoisture and perspiration resistant when used in hair, on the body and in bad weatherCountryman EMWlOmnidirectionallVery low rubbing noiselHighly moisture resistanceAllows use near water or in intense weat。