MAIN AUDIO SYSTEM BASIC OPERATING INSTRUCTIONS
Contents
1. audionotes doc rev June 98 All equipment is set up so that the maximum level should be 0 dB or 0 VU which is usually found near the top of the scale Lower levels are denoted by negative numbers for example minus 20 dB Adjust your levels so that on the cassette or recorder the loudest signals just reach 0 and only momentarily On digital equipment overloading is a more serious problem so be sure that signals never go above 5dB Procedure Set up as above to listen to the source then on whichever mixer input channel s you are using PFL Off On button On Mix On fader set to 0 on scale not off Mixer output 20 yellow mix faders You should now hear the signal again If not adjust monitor volume channel gain controls and mix faders to hear it comfortably On mini disk input Bal Analog Input Cal press Record Ready You should see signal on the bargraphs If raising gain control and faders doesn t give enough signal level try switching analog input to uncal and raising the input level controls Try to avoid setting some of the level controls in the signal path very high and others very low It is better for all of them to be at more or less equal settings To begin recording Press Play audionotes doc rev June 98 6 To play back recording Mixer channels 9 amp 10 FL On On cassette deck monitor button Source no LED Rec level faders 7 5 You should see signal on the bargr2. the mic into one of the outlets on the proscenium S L or S R Patch panel No patch cords are necessary Each mic line is automatically connected to the console mic input jack directly below it Determine which console input A E you need then proceed as above To avoid feedback when recording make sure that power amps are turned off before raising console faders audionotes doc rev June 98 To send sound to auditorium and stage The same mixing console outputs which feed signals to the recorders also feed the power amps The amps in turn are normally connected to speakers or outlets for speakers backstage or in the house Standard configuration Console fader Amp Channel Speaker Location Group 1 blue 3 U S R Gallery outlet Group 2 blue 4 U S L Gallery outlet Group 3 blue 5 House wall S R Group 4 blue 6 House wall S L Mix L yellow 1 Proscenium S R Mix R yellow 2 Proscenium S L No patch cords are necessary unless it is desired to change these assignments The console to amplifier connections are on the front patch panel the amplifier to speaker patching is done on the rear panel audionotes doc rev June 98
3. FREDERIC WOOD THEATRE MAIN AUDIO SYSTEM BASIC OPERATING INSTRUCTIONS A Handbook by lan Pratt Theatre Program The University of British Columbia audionotes doc rev June 98 Notes FREDERIC WOOD THEATRE MAIN AUDIO SYSTEM e System power switches are on two power bars located on the back of the equipment racks at eye level Please switch them on and off in the order indicated e For normal use remove all patch cords from the patch panels both front and rear of the racks e For in booth listening recording and editing the power amplifiers at the bottom of both racks Amps 1 amp 2 3 amp 4 5 amp 6 7 amp 8 should be turned off e Leave the two amplifiers Console Monitor and Stage Monitor at the top of the left rack turned on Please do not adjust compressor limiter 1 which is part of the stage monitor system e Proper use of the graphic equalizers compressor expander digital delays and reverb units is too complex to cover in these notes e Manuals for system components are to be found in the green loose leaf binder e Please read the accompanying rules for Sound Booth use Mixer Terminology The mixing console consists of nput channels 1 16 audionotes doc through which signals are brought in from sources mics cassettes CD s etc The input controls Gain EQ Fader set the evel volume and equalization tonal quality of the signal after which it can be sent out through the various ou
4. aphs Adjust levels as necessary to obtain proper signal To begin recording Press Record Play To play back tape monitor button Tape LED lit Mixer chan 15 FL On To record onto tape Tape deck input faders set to cal record enable press on for desired tracks output selectset at input input mic line up no LEDs Mixer Ensure channels 11 14 are off or have their faders down On whichever input channel s you are using assign buttons 1 2 amp 3 4 ON blue Group faders 1 4 15 You should now see signal on the tape deck meters Adjust various level controls as required To begin recording Press Record Play To play back the recording audionotes doc rev June 98 select output Repro Mixer channels 11 14 FL On To use a microphone in the booth for recording Mixer Find the Adapter box on a cable at the rear of the racks Plug a microphone into one of the connectors labeled Adapter 1 On the front patch panel run a patch cord between the jacks labeled Adapters 1 and Console microphone inputs A set monitor level control way down Input 4 Mic A Line Off Gain 9 o clock PFL On Sneak monitor level up slowly to avoid feedback To record Input 4 Mix On 1 2 3 4 On PFL Off Proceed as with previous recording instructions raising whichever output faders blue or yellow send signal to the desired recording device To use a microphone on the stage Note Plug
5. ine Off EQ Off PFL On To listen to a mini disk Mini disk Power On Press Play you should now see signal on the Mini Disk bargraphs Mixer Inputs 9 10 Mini Disk Gains 12 o clock Line On EQ Off PEL On both inputs To playa tape 4 Track deck Power On reel size Small 7 reels speed 71 2 output repro output faders set at cal Press Play you should see signal on the VU meters audionotes doc rev June 98 Mixer Inputs 11 14 4 track Gains 12 o clock Line On EQ Off PFL On 4 inputs To play an LP or 45 record Phono turntable speed 33 or 45 pitch quartz lock press Start lower stylus gently onto record Mixer Input 2 cass phono Gain 12 o clock Line B On EQ Off PFL On Recording Notes Start by switching off all mixer input channels except the inputs from your source Feedback and other recording noise may occur if you don t Never raise the channel Gain control to the point of making the peak LED flash its above the channel fader Channel and output faders should not be so high that the output bargraph above the yellow faders goes into the red Recording levels Each recording medium has an ideal signal level for optimal recording quality Too low and there will be noise audible during playback too high and distortion results often making the recording unusable Our equipment incorporates LED bargraphs and VU meters to help you find the right setting
6. tput channels by means of assignment buttons labeled 1 2 3 4 and Mix The output controls the faders on the right with blue or yellow knobs set the volume of the output signal and send it to various tape recorders mini disks and amplifiers rev June 98 2 Many of the mixer controls are push on push off buttons which remain depressed until pushed a second time In these notes a push button is ON if it is depressed and OFF if it is up Clearly there are lots of controls to adjust but a means has been provided whereby you can listen to sound cues very easily through the use of the PFL pre fader listen buttons which bypass most of the other controls and send the signal directly to the console monitor system To listen to a CD System Power switches On Amps 1 8 Off CD Player Power On 30 sec warm up Press Play Mixer Start with all faders down Input 16 CD Gain red knob 12 o clock Line B Off EQ Off PFL On Monitor volume red knob at right of console adjust as required Trouble shooting If sound not audible make sure that CD display is counting time 2 TRK button under monitor volume is OFF Booth monitor amp has power ON volume at 10 o clock audionotes doc rev June 98 To listen to a cassette Cassette Power On Monitor switch On red LED is on Output fader 7 5 Press Play you should see signal on the recorder LED bargraphs Mixer Input 15 cassette Gain 12 o clock L
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