Safe Sound Audio P1 User Manual

Summary of P1

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    P1 audio processor user manual safe sound audio model p1 audio processor : user manual safe sound audio, uk _________________________________________________________________________________.

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    Page 2 user manual p1 audio processor p1 audio processor features advanced audio compressor with peakride which utilises multiple side-chains allowing the compressor to ‘ride’ the crests of the audio so that control of fast audio peaks, especially vocals, may be as fast as desired whilst release fro...

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    P1 audio processor user manual page 3 contents page p1 audio processor features ………………………………….. 2 safety information; read this first ………………………. 4 quick start guide ……………………………………………….. 5 audio connector wiring information …………………………… 8 detailed operational guide …………………………………….. 12 power on …………………...

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    Page 4 user manual p1 audio processor important safety information : read this first! There are dangerous voltages present within the unit. Do not open the unit and refer all servicing to qualified service personnel. _________________________________________________________________________________ t...

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    P1 audio processor user manual page 5 quick start guide after reading the important safety information, you may wish to ‘plug and go’. If, at any time, you are in doubt as to the correct operation of the unit, all operational points are covered in detail later in this manual, but as a quick start; b...

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    Page 6 user manual p1 audio processor although the three inputs share a common input gain control, the gain range available to each input is different and appropriate to that input; microphone gain 0db to +70db instrument gain 0db to +30db line input gain -10db to +20db phantom power the microphone ...

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    P1 audio processor user manual page 7 the limiter is actually the last signal processing element and sits just before the preset output gain control. The limiter threshold is fixed, so for quick set-up; • ensure the expander and compressor are switched out of circuit • apply a fixed level test signa...

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    Page 8 user manual p1 audio processor audio connector wiring information note : all connector wiring information refers to the cable end connecting to the p1 audio processor unless otherwise stated. Balanced microphone input any standard balanced xlr-3 to xlr-3 microphone cable should be suitable. A...

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    P1 audio processor user manual page 9 the balanced line input should not be used to directly connect to electric guitars and basses. Use the instrument input instead. Unbalanced instrument input any standard unbalanced ¼” to ¼” 2-pole instrument (guitar) cable should be suitable. If wiring your own ...

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    Page 10 user manual p1 audio processor it is also possible to feed this output to an unbalanced destination which may be the case when feeding the p1’s line output to some unbalanced pc sound card inputs. In this case use a standard ‘off the shelf’ unbalanced line level cable. If wiring your own, at...

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    P1 audio processor user manual page 11 quasi balanced connection : plugs into the two jacks labelled ‘monitor input left (bal)’ and ‘monitor input right (bal)’. If feeding from an unbalanced monitor output and wiring your own cable, we suggest the following wiring arrangement which will give better ...

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    Page 12 user manual p1 audio processor detailed operational guide power on if the pwr led does not light then go to the fault finding section of this user manual. _________________________________________________________________________________ with the iec mains cord securely fitted to the rear of ...

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    P1 audio processor user manual page 13 typical audio connections the diagram below shows a typical application of the p1 audio processor in a recording set-up. Three audio input types are provided for, these are; balanced microphone input, for use with either dynamic or phantom powered condenser mic...

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    Page 14 user manual p1 audio processor the balanced microphone input (3 pole xlr plug) has the lowest priority. So, for example, if you are using a microphone with the p1 make sure the other two inputs are disconnected! +48v phantom power for microphones as a general rule, if you are not sure whethe...

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    P1 audio processor user manual page 15 overload warning if the peak led flashes and you cannot prevent it by lowering the input gain control then you have to deal with the very high signal level at source in one of the following ways; if you are using a microphone source (now we’re guessing, but may...

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    Page 16 user manual p1 audio processor setting up the output gain the p1 limiter takes care that the maximum audio level through the processing chain is carefully monitoring and controlled without having to adjust any settings. However you do have to adjust the output gain control so that the maximu...

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    P1 audio processor user manual page 17 adjust the p1’s input gain until the red lim led just lights. Now set your recording device to monitor the incoming test audio signal level on its record meter. If your recording device has a recommended input level setting for best audio performance, then set ...

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    Page 18 user manual p1 audio processor adjust the p1’s input gain until the red lim led just lights during the loudest part of the source material. Now set your recording device to monitor the incoming audio signal level on its record meter. If your recording device has a recommended input level set...

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    P1 audio processor user manual page 19 high pass filter the hi pass filter is in circuit when the yellow led is lit and has two main uses; to filter out mains hum which gets into the recording chain, sometimes caused by the use of unbalanced audio connections in the recording chain, or because the e...

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    Page 20 user manual p1 audio processor the expansion ratio is how much the audio gain is reduced as it falls below the threshold point. The p1 uses a fixed ratio of around 1:3 (with a soft knee at the threshold point) so that (below the threshold) for every 1db that the input level drops, the output...

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    P1 audio processor user manual page 21 we will now detail some common uses of the p1 expander. In each case remember to set the input gain correctly before switching in the expander. As a effects unit noise reducer : you have a really favourite classic guitar effects peddle but it has a very high ba...

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    Page 22 user manual p1 audio processor connect the p1 in the normal way for recording new source material. Switch in the p1’s expander and start with the threshold setting at the –60db setting. This should have no audio affect. Now turn up the threshold control just far enough that most of the backg...

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    P1 audio processor user manual page 23 laying stage as it can actually improve the quality of the performance given by the artist. However it is also possible to use the p1’s compressor as an effects device during mix down. As a general rule when recording; use compression sparingly unless you are i...

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    Page 24 user manual p1 audio processor if you feel you’ve achieved a nice even bass sound but that it’s lost some of it’s punch, try increasing the attack time (turn control anti-clockwise). This will allow some more of the initial note attack to sneak past the compressor. Now try experimenting with...

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    P1 audio processor user manual page 25 many instruments and vocalists have a natural vibrato which finds it’s way into the compressor control side-chain causing the gain to move up and down in sympathy. This is extremely undesirable and causes high levels of non-linear distortion. The p1’s peakride ...

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    Page 26 user manual p1 audio processor the p1 limiter with dynamic threshold control considering that almost half of the processing power in the p1 is dedicated to the limiter, it doesn’t exactly have a high profile on the front control panel, so what’s it all about? Let’s start with the basics; all...

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    P1 audio processor user manual page 27 but can’t i just record in such a way that this maximum audio level is never reached? In theory, yes you can; if you are very careful and record well below the maximum permitted level of your recording system; but as so commonly happens, you set up the levels c...

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    Page 28 user manual p1 audio processor most soundcard manufacturers quote dynamic range in dba which is a weighted measuring scale taking into account the sensitivity of the ear to different frequencies. It also happens to be a way of quoting a higher dynamic range figure! Soundcard manufacturers al...

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    P1 audio processor user manual page 29 • it has a very high quality dynamically variable threshold limiter to protect the soundcard against unexpectedly high levels which would lead to digital clipping. • it has an additional 14db of input headroom so that unexpected high input levels do not level c...

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    Page 30 user manual p1 audio processor increasing the limiter’s natural threshold above 0db (+7dbu) would decrease the available input headroom (set at 14db) as we worked closer and closer to the p1’s own maximum signal handling limit of +21dbu. There wouldn’t be much point in protecting the digital...

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    P1 audio processor user manual page 31 the monitoring facilities we’ve designed the p1 to provide the kind of monitoring set-up which is most commonly required during track recording and overdubbing. If you have enough replay outputs from your recording device then one stereo output of your recordin...

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    Page 32 user manual p1 audio processor during track laying or overdubbing you require to hear both the already recorded tracks plus the new source which you are recording. The p1 has an on-board monitor mixer to allow you to do this. Although it is possible to ‘bounce back’ the source material from ...

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    P1 audio processor user manual page 33 technical specification model p1 audio processor size : 223mm wide by 44mm high (1u) by 225mm deep (excluding cable connectors) weight : 1.8kg (4lbs) power requirements : ac power to the voltage indicated on the rear panel ± 10%, 50/60 hz. Mains fuse : 3a rear ...

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    Page 34 user manual p1 audio processor input gain ranges microphone input : 0db to +70db line input : -10db to +20db instrument input : 0db to 30db expander threshold range : -60db to 0db attack time : typically 3ms release time : variable between 90ms and 900ms (tracks the natural audio decay) rati...

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    P1 audio processor user manual page 35 fault finding problem : green power led does not light when unit is connected to the power source. Checks : is there any visible or audible sign of physical damage to the unit? If so, immediately disconnect the unit from the mains supply and connect safe sound ...

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    Page 36 user manual p1 audio processor advice : there is a possibility of earth loops if both ends of the balanced cable screen are connected to ground through different pieces of equipment. You can try disconnecting the cable screen at the end from which the audio signal is being sent from see if t...

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    P1 audio processor user manual page 37 customer care if you have a problem with the unit and suspect it is faulty, then first follow the guidelines in this manual for set-up, operation and fault finding tips. If you still cannot get the unit to function as you expect then contact safe sound audio fo...

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    Page 38 user manual p1 audio processor how to contact us by post : safe sound audio 47 broadgate lane horsforth leeds west yorkshire ls18 4ag uk by telephone : +44 (0)7866 574522 by e-mail : [email protected] on the web : www.Safesoundaudio.Com safe sound audio reserves the right to make chang...