Safe Sound Audio P1 User Manual

P1 Audio Processor User Manual Safe Sound Audio Model P1 Audio Processor User Manual Safe Sound Audio, UK

Page 10 User manual P1 Audio Processor Audio Connector wiring information Note: All connector wiring information refers to the cable

P1 Audio Processor User Manual Page 11 It is also possible to feed this input from an unbalanced source which may be the case when feedin

Page 12 User manual P1 Audio Processor UNBALANCED INSTRUMENT INPUT Any standard unbalanced ¼” to ¼” 2-pole instrument (guitar) cable sho

P1 Audio Processor User Manual Page 13 BALANCED LINE OUTPUT Any standard ‘off the shelf’ balanced line level cable should be suitable. If wiring

Page 14 User manual P1 Audio Processor MONITOR INPUTS The P1 has the option to accept either unbalanced or balanced monitor inputs

P1 Audio Processor User Manual Page 15 Balanced connection : plugs into the two jacks labelled ‘MONITOR INPUT LEFT (BAL)’ and ‘MONITOR INPUT RIG

Page 16 User manual P1 Audio Processor Detailed operational guide POWER ON With the IEC mains cord securely fitted to the rear of the unit, pl

P1 Audio Processor User Manual Page 17 TYPICAL AUDIO CONNECTIONS The diagram below shows a typical application of the P1 audio processor in a rec

Page 18 User manual P1 Audio Processor Although it is possible to connect sources to all the P1 inputs simultaneously, only one will function at

P1 Audio Processor User Manual Page 19 circuitry to help protect the microphone amplifier from damage in this case but it’s impossible to protect

Page 2 User manual P1 Audio Processor P1 Audio Processor Features Advanced audio compressor with peakride which utilises multiple side-cha

Page 20 User manual P1 Audio Processor Overload warning Although not usual, it is possible for a very high level audio source to overload the P

P1 Audio Processor User Manual Page 21 SETTING UP THE OUTPUT GAIN The P1 limiter takes care that the maximum audio level through the processing

Page 22 User manual P1 Audio Processor Adjust the P1’s input gain until the red LIM LED just lights. Now set your recording device to mo

P1 Audio Processor User Manual Page 23 The 1kHz square wave signal was chosen to ensure that the recording device metering gives an acc

Page 24 User manual P1 Audio Processor set this first according to their recommendation. If there is no recommendation then we sugges

P1 Audio Processor User Manual Page 25 HIGH PASS FILTER The high pass filter (sometimes called a low cut filter) affects only low frequency

Page 26 User manual P1 Audio Processor THE EXPANDER Expanders reduce audio gain when the audio level falls below the expander threshold setting a

P1 Audio Processor User Manual Page 27 Hold time is how long the expander waits before operating when the input level falls below the threshold

Page 28 User manual P1 Audio Processor We will now detail some common uses of the P1 expander. In each case remember to set the input gain corre

P1 Audio Processor User Manual Page 29 setting. This should have no audible affect. Now turn up the threshold control slowly so you lose as muc

P1 Audio Processor User Manual Page 3 Contents Page P1 Audio Processor Features 2 Safety Information; READ THIS FIRST 4 Quick Start Guide 6 Au

Page 30 User manual P1 Audio Processor THE peakride COMPRESSOR Compressors progressively reduce the gain of an audio signal as its input level

P1 Audio Processor User Manual Page 31 to replace this ‘lost’ level and in the case of the P1 this is done automatically; the amoun

Page 32 User manual P1 Audio Processor the start of a vocal phrase then try decreasing the attack time (turn the knob clockwise). If you feel

P1 Audio Processor User Manual Page 33 clockwise). This will allow some more of the initial note attack to sneak past the compressor.

Page 34 User manual P1 Audio Processor Many instruments and vocalists have a natural vibrato which finds it’s way into the compressor control s

P1 Audio Processor User Manual Page 35 attack, especially to provide adequate control of certain vocal styles, and the usual consequence that the

Page 36 User manual P1 Audio Processor The P1 limiter with dynamic threshold control Considering that almost half of the processing power

P1 Audio Processor User Manual Page 37 But can’t I just record in such a way that this maximum audio level is never reached? In theory, yes y

Page 38 User manual P1 Audio Processor being exercised and this only happens when you pump in the very highest audio level which the conver

P1 Audio Processor User Manual Page 39 microphones can be in excess of the recording system’s practical dynamic range. In addition,

Page 4 User manual P1 Audio Processor Important Safety Information : Read this first! There are dangerous voltages present within the

Page 40 User manual P1 Audio Processor However the P1 has three very useful ways to manage the high input dynamic range available;  It has a

P1 Audio Processor User Manual Page 41 Answers to some common questions; Q. Why don’t 24 bit soundcards achieve their theoretical 144dB dynamic

Page 42 User manual P1 Audio Processor signal handling limit of +21dBu. There wouldn’t be much point in protecting the digital rec

P1 Audio Processor User Manual Page 43 ‘natural’ threshold (which we call 0dB) and this allows the limiter to use a much gentler control

Page 44 User manual P1 Audio Processor The monitoring facilities We’ve designed the P1 to provide the kind of monitoring set-up which

P1 Audio Processor User Manual Page 45 If working from balanced stereo monitor outputs, then connect as shown below; During track

Page 46 User manual P1 Audio Processor mute the feed of the record input from the recording devices monitoring output. The P1 is capa

P1 Audio Processor User Manual Page 47 Technical Specification MODEL P1 AUDIO PROCESSOR Size : 223mm wide by 44mm high (1U) by 225mm deep (ex

Page 48 User manual P1 Audio Processor EQUIVALENT INPUT NOISE FIGURES; Microphone : 128dB (max gain with 150 ohms source) Line input : 100d

P1 Audio Processor User Manual Page 49 PEAKRIDE COMPRESSOR Threshold range : 0dB to -40dB Attack time range : 60ms to 1ms Release time

P1 Audio Processor User Manual Page 5 This unit must be earthed. This unit should only be connected to a mains supply of the type m

Page 50 User manual P1 Audio Processor Fault finding Problem : Green Power LED does not light when unit is connected to the power source. Che

P1 Audio Processor User Manual Page 51 Problem : I seem to be having problems setting up the output level control on the P1 to match my recordin

Page 52 User manual P1 Audio Processor Customer Care If you have a problem with the unit and suspect it is faulty, then first follow the guide

P1 Audio Processor User Manual Page 53 Safe Sound Audio will be responsible for the cost of shipping the repaired or replaced unit bac

Page 54 User manual P1 Audio Processor How to contact us By post : Safe Sound Audio 47 Broadgate Lane Horsforth Leeds Wes

P1 Audio Processor User Manual Page 55 Notes

Page 56 User manual P1 Audio Processor © Safe Sound Audio 2010

Page 6 User manual P1 Audio Processor Quick Start Guide After reading the important safety information, you may wish to ‘plug and go’. If, at a

P1 Audio Processor User Manual Page 7  The unbalanced INSTRUMENT input (2 pole ¼” jack plug) has priority over the MICROPHONE input.  Th

Page 8 User manual P1 Audio Processor HI PASS FILTER The switchable high pass filter has a -3dB point at 80Hz and a slope of 18dB per octave. P

P1 Audio Processor User Manual Page 9  Adjust the preset output gain control (screwdriver adjustment) until the desired recording le