{"product_id":"glensound-sd1-plus-silence-detector","title":"Glensound SD1+ | Silence Detector","description":"\u003cp\u003eSilence detector (analogue)\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eStereo or dual mono operation\u003c\/li\u003e\n\u003cli\u003eConfigurable threshold \u0026amp; time settings\u003c\/li\u003e\n\u003cli\u003eGPIO loops for alarm outs or external switching\u003c\/li\u003e\n\u003cli\u003eSmart fail \u0026amp; smart recovery modes\u003c\/li\u003e\n\u003cli\u003eBypass relays\u003c\/li\u003e\n\u003cli\u003eAnalogue audio I\/O\u003c\/li\u003e\n\u003c\/ul\u003e\u003cdiv class=\"tab-content\" id=\"tab2content\"\u003e\n\u003cp\u003eThe Signature SD1 is a silence detector used to switch audio to a backup source when the primary audio source falls below accepted silence thresholds in level or time. These are often used on a broadcast path to prevent dead air should a technical problem occur with the audio.\u003c\/p\u003e\n\u003cp\u003eThe audio connections are stereo, on analogue XLRs. There is an input pair for the primary source, and an input pair for the backup source. The SD1 can also be configured as a twin single channel silence detector. The backup source is usually coming from an audio player which can be remotely started by the SD1 via a GPO should silence be detected.\u003c\/p\u003e\n\u003cp\u003eEach channel can have the configuration parameters set independently. The threshold at which the unit detects a low level is configurable, as is the amount of time that the audio needs to be under this level before an alarm condition is triggered and the audio is switched to the backup input.\u003c\/p\u003e\n\u003cp\u003eA comprehensive set of GPIOs allow for triggering external devices when the secondary input has been triggered.\u003c\/p\u003e\n\u003cp\u003eIntelligent modes can be set to allow for switching back to the primary audio source once a sustained audio level has returned.\u003c\/p\u003e\n\u003cp\u003eWith a stereo audio source, if one channel should fail, the SD1 can be set to switch this single input to both outputs, making a problem unnoticeable to any listeners, whilst at the same time still providing alarm outputs so the engineers can be alerted.\u003c\/p\u003e\n\u003cp\u003eAn internal switch mode power supply is provided along with an external ±12V DC input for the main or backup power supply of the Signature PS1 Power Station.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSilence Detection Parameters\u003c\/strong\u003e\u003cbr\u003eFor the detection of drops in audio level, a threshold can be specified between -60dB to -10dB. If the audio level is under this level for a set amount of time, then the SD1 will switch to the backup source, preventing any dead air situations. The fail delay time is configurable between 5 seconds and 5 minutes. When the audio switches to the backup source, a GPO is triggered to start a backup audio source which is connected to the backup input. A GPO is created so that the engineering department are alerted. All switching between the primary and backup source is silent.\u003c\/p\u003e\n\u003cp\u003eWhen primary audio has returned, the SD1 can be used in manual or automatic mode. In automatic, the SD1 switches back to the main input after a recovery delay, that’s configurable between 5-60 seconds. In manual mode, the main input must be selected via the front panel or via a GPI switch.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStereo Or Dual Mono\u003c\/strong\u003e\u003cbr\u003eThe SD1 can monitor a single stereo source and switch the output to a backup source if a silence condition is triggered. It can also act as a dual mono silence detector, taking in 2 mono sources and switching them, independently, to their own backup audio in the event of a silence condition trigger.\u003c\/p\u003e\n\u003cp\u003eIn stereo mode, if one channel becomes silent, the SD1 can perform two configurable functions. It can either feed the one good primary input to both primary outputs, or trigger the silence detect to switch to the backup input.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAudio Connections\u003c\/strong\u003e\u003cbr\u003eThe audio connections are stereo on analogue XLRs. There is an input pair for the primary source, and an input pair for the backup source. The backup source can be selected to be at 0dB or +10dB. The +10dB option allows for the connection of a domestic level audio source, such as a CD or a memory card player, that may be used as the backup.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSmart Fail \u0026amp; Smart Recovery\u003c\/strong\u003e\u003cbr\u003eSmart recovery mode prevents pops and clicks from triggering the recovery switch back to the main input, and waits for a configurable period of time. This allows full recovery of the audio before switching back to the primary source.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLoops\u003c\/strong\u003e\u003cbr\u003eA 25way d type connector contains all of the available GPIO, for output remote starts and alarms, and for input switching. There are GPOs to indicate if the primary or backup input is active, which can be used as an alarm that a backup switch has been activated.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eConfiguration Screen\u003cbr\u003e\u003c\/strong\u003eA front panel screen shows visual feedback of the status of each input, and the value of the fail or recovery timer. This screen also accesses the menu for configuration.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBypass Relays\u003c\/strong\u003e\u003cbr\u003eIn event of power failure the primary audio input is switched directly to the audio output via relays, so that there is no loss of audio.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePower Supply\u003c\/strong\u003e\u003cbr\u003eThe SD1 has an internal switch mode 100-240V AC power supply using an IEC connection. There is also an external ±12V DC input to connect to the Signature PS1 Power Station as the primary or backup power supply.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\u003cbr\u003eSignature Series Standard Features\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e19\" Rack Mount Ears\u003c\/strong\u003e\u003cbr\u003eA Signature unit can rack mount in a 1U 19” rack, regardless of the size of the unit.  Rack ears are included as standard with every unit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFront Or Rear Mounting\u003c\/strong\u003e\u003cbr\u003eA Signature unit can be rack mounted via the front panel or if it is more convenient, via the rear panel by simply swapping the rack ears over.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSide Wings For Flat Surface Mounting\u003c\/strong\u003e\u003cbr\u003eA Signature unit has side wings with mounting holes at the top and bottom, allowing flush fixing from above OR underneath.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInternal Switch Mode AC Power Supply\u003cbr\u003e\u003c\/strong\u003eA Signature unit has an internal switch mode AC power supply, allowing worldwide power connections from 100-240V via an IEC socket.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e12V DC Power Connection\u003c\/strong\u003e\u003cbr\u003eAll Signature units (except PS1) have a 4 pin XLR ±12V DC  socket for connection to the PS1 Power Station.  This can act as the primary or backup power source.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQuick Find Manual\u003c\/strong\u003e\u003cbr\u003eA Signature unit has a QR code attached.  This can be scanned to simply and quickly locate the manual and technical information.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eOther\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNeutral colour scheme to complement Equipment Scheme\u003c\/li\u003e\n\u003cli\u003eRack screws included\u003c\/li\u003e\n\u003cli\u003eModern design\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eMay be delivered with a black finish\u003c\/p\u003e \u003c\/div\u003e\u003ch4\u003eTechnical Information\u003c\/h4\u003e\u003cdiv class=\"tab-content\" id=\"tab4content\"\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eAUDIO\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003eFrequency Response:\u003c\/strong\u003e  ± 1dB 22Hz to 22kHz \u003cbr\u003e\u003cstrong\u003eInput Impedance:\u003c\/strong\u003e   \u0026gt;30k Ohm\u003cbr\u003e\u003cstrong\u003eCommon Mode Rejection:\u003c\/strong\u003e   Circa -65dB @ lineup\u003cbr\u003e\u003cstrong\u003eMaximum Input Level:\u003c\/strong\u003e  \u0026gt;+24dB \u003cbr\u003e\u003cstrong\u003eDistortion:\u003c\/strong\u003e  0.008% @ 100Hz, 0.009% @ 1kHz, \u0026amp; 0.007%@10kHz THD. Reference to +8dBu output \u003cbr\u003e\u003cstrong\u003eInput Type:\u003c\/strong\u003e   Electronically balanced (can be wired unbalanced) on Neutrik 3 pin XLR plug\u003cbr\u003e\u003cstrong\u003eBackup Input Gain Selection:\u003c\/strong\u003e 0dB 0r +10dB  \u003cbr\u003e\u003cstrong\u003eOutput Impedance:\u003c\/strong\u003e  =\u003cstrong\u003eOutput Type:\u003c\/strong\u003e  Electronically balanced (can be wired unbalanced) on Neutrik 3 pin XLR plug\u003cbr\u003e\u003cstrong\u003eMaximum Output Level:\u003c\/strong\u003e +24dBu  \u003cbr\u003e\u003cstrong\u003eNoise:\u003c\/strong\u003e   -85dB ref +8dBu output, unity gain \u003cbr\u003e\u003cstrong\u003eRMS:\u003c\/strong\u003e (22Hz to 22kHz)\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eSILENCE DETECTION\u003cbr\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003cstrong\u003eAudio Threshold:\u003c\/strong\u003e  -60dB to -10dB selectable\u003cbr\u003e\u003cstrong\u003eGPIO Loops:\u003c\/strong\u003e   On a 25 pin d type connector\u003cbr\u003e\u003cstrong\u003eRecovery Time:\u003c\/strong\u003e  5 seconds to 60 seconds \u003cbr\u003e\u003cstrong\u003eTime Threshold:\u003c\/strong\u003e  5 seconds to 5 minutes \u003cbr\u003e\u003cstrong\u003eOperational Modes:\u003c\/strong\u003e  Stereo or 2 x single channel\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003ePOWER\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003eMains Input:\u003c\/strong\u003e  Filtered IEC, 100 to 240VAC 47 - 63Hz\u003cbr\u003e\u003cstrong\u003eInternal Mains Fuse:\u003c\/strong\u003e  20mm 500mA Anti Surge\u003cbr\u003e\u003cstrong\u003eOn Power Fail:\u003c\/strong\u003e  Primary input switches directly to outputs via bypass relays\u003cbr\u003e\u003cstrong\u003eDC Input:\u003c\/strong\u003e  4 Pin Neutrik XLR plug ± 12V\u003cbr\u003e\u003cstrong\u003eDC Consumption:\u003c\/strong\u003e  +12V 200mA, -12V 20mA\u003cbr\u003e\u003cstrong\u003eAC Consumption:\u003c\/strong\u003e  2.8 Watts @ 230VAC\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003ePHYSICAL\u003cbr\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003cstrong\u003eSize:\u003c\/strong\u003e  445 x 164 x 44mm (LxDxH) no rack ears,  482mm 19” (1RU) with rack ears\u003cbr\u003e\u003cstrong\u003eShipping Weight:\u003c\/strong\u003e  2.1kg\u003cbr\u003e\u003cstrong\u003eMechanics:\u003c\/strong\u003e  All aluminium construction, anodised and laser etched\u003cbr\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e  1.11kg\u003cbr\u003e\u003cstrong\u003eShipping Carton:\u003c\/strong\u003e Rugged export quality cardboard carton 610 x 420 x 130mm LxDxH \u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e \u003c\/div\u003e\u003ch4\u003eOfficial Resources\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.glensound.co.uk\/product-details\/signature-sd1\/\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eOfficial Product Page\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.glensound.co.uk\/assets\/library\/56b9ea9326a19-Signature%20SD1+%20Brochure.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eSignature SD1+ Brochure\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.glensound.co.uk\/assets\/library\/56b48bea7b67f-SD1+%20Manual.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eSignature SD1+ Manual\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.glensound.co.uk\/assets\/library\/5773b2568aca0-Glensound%20Catalogue%2019%20LQ.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eOfficial Glensound Catalogue PDF\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Glensound","offers":[{"title":"Default Title","offer_id":53671447658837,"sku":"SD1+","price":696.15,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1033\/6993\/3141\/files\/Glensound_Glensound_SD1_Silence_Detector_01.jpg?v=1776027158","url":"https:\/\/tvpro.lt\/products\/glensound-sd1-plus-silence-detector","provider":"tvpro.lt – Broadcast \u0026 Pro Video Equipment Online Store","version":"1.0","type":"link"}