Louroe Line Powered Microphone

By: Brian Rhodes, Published on Apr 01, 2012

Many IP video cameras contain microphones that do not provide enough fidelity to record more than muffled audio. When high-quality audio recording is required, external microphones must be installed. Unfortunately, these external microphones often must be powered from additional power supplies. Louroe Electronics has announced a new line of microphones designed to eliminate the need for external power. In this note, we examine the first product in this new line.

Louroe Electronics, based in California, manufacturers a variety of products for use in audio monitoring and intercom applications. As we have previously noted, the company is widely recognized among security integrators as a specialy vendor of audio recording hardware for video surveillance. 

Here's a snapshot of Louroe's new microphone, model number 'LE-778':

Notice the microphone is designed into a standard coverplate for a single gang junction box. This type of design results a vandal-resistant install that can be mounted inconspicuously within walls.

The LE-778 is an 'electret' type of microphone that requires no external pre-amp like the 'standard condenser' type. All pre-amp voltage required for use is supplied by the host device. The device cable is preterminated in the standard 3.5mm 'mini jack' connector compatabile with audio inputs on many IP cameras.

Any IP camera furnished with this type of jack is able to make use of this microphone. However, the location of this jack will depend on the type of camera, and determining if enough clearance exists for the connector plug inside of a housing or on the backside of a camera is subject to field verification. See picture below detailing the standard type of 'AUDIO IN' jack supporting this microphone:

Line Powered vs. Phantom Power

The LE-778 is 'line powered', meaning the camera supplies power to the microphone through the transmission cable. Many 'line powered' devices operate on low voltages, typically 3 to 5 VDC. This transmission method is sometimes confused with 'Phantom Power' that also uses one cable, however uses a much higher voltage (48 VDC). An IP camera with an 'audio input' jack is not designed to produce that much voltage.

Line powered microphones are not expensive or difficult to source. However, Louroe has packaged their microphone in a mount that lends itself to better listen positioning and protection than simple commodity type microphones.

Pricing

The LE-778 has an MSRP of $139 USD, which is less than half the cost of Louroe's closest externally powered ASK-4KIT #101 with an MSRP of $330 USD.

Comments : PRO Members only. Login. or Join.

Related Reports

Hikvision ColorVu Camera Tested on Jun 24, 2019
Hikvision says their new ColorVu line captures "vivid chromatic images in darkness", with unconventional white light illuminations whereas most...
Risk of Amazon Alexa Guard: No Battery Or Cell Backup on Jun 20, 2019
Amazon positions its Alexa Guard Service as a "smart home security system" and says it can help you "keep your home safe". However, the...
China / US Trade War Impact Splits Industry on Jun 04, 2019
As the trade war continues to heat up, 170+ integrators told us "What impact will the US / PRC China conflict have on the industry?" Respondents...
Access Control Job Walk Guide on May 22, 2019
Significant money can be saved and problems avoided with an access control job walk if you know what to look for and what to ask. By inviting...
LifeSafety Power NetLink Vulnerabilities And Problematic Response on May 20, 2019
'Power supplies' are not devices that many think about when considering vulnerabilities but as more and more devices go 'online', the risks for...
Maglock Selection Guide on May 16, 2019
One of the most misunderstood yet valuable pieces of electrified hardware is the maglock. Few locks are stronger, but myths and confusion surround...
China PRC Government New National Video Surveillance Standards on May 14, 2019
The People's Republic of China (PRC) government has released a new set of overarching standards for authorities to follow when they install video...
Access Control Request to Exit (RTE) Tutorial on May 13, 2019
For access controlled doors, especially those with maglocks, 'Request to Exit', or 'RTE' devices are required to override electrified locks to...
Dahua ePoE Long Distance UTP / Coax Tested on May 03, 2019
Dahua's Enhanced PoE (ePoE) line is claiming extended video and power transmission over 600m without repeaters, with devices interchangeable via...
Axis Supports HD Analog on Apr 15, 2019
In 2017, Axis declared 'Everything is IP': Now, in 2019, Axis has released support for HD analog, with their new encoders.  Why the change?...

Most Recent Industry Reports

Wyze Disruptive AI Analytics Tested on Jul 17, 2019
$20 camera disruptor Wyze has released free person detection deep learning analytics to all of their users, claiming users will "Only get notified...
Anyvision Aims For 2022 Revenue of $1 Billion on Jul 17, 2019
Only 3 video surveillance manufacturers do a billion dollars or more in annual revenue - Hikvision, Dahua, and Axis. Now, Anyvision plans to join...
HD Analog vs IP Guide on Jul 16, 2019
For years, HD resolution and single cable signal/power were IP camera advantages, with analog cameras limited to much lower resolution and...
How To Troubleshoot Wiegand Reader Problems - Inverted Wiring on Jul 16, 2019
Wiegand is the dominant method of connecting access readers, but problems can arise for installers. In fact, one of the most difficult reader...
ZeroEyes Gun Detection Startup on Jul 16, 2019
A gun detection video analytics startup, ZeroEyes, is being led by a group of 6 former Navy SEALs, aiming to "save lives" by using AI to assist...
Motorola Acquires Watchguard, Adds to Vigilant And Avigilon on Jul 15, 2019
2 years ago, Motorola had no position nor relevancy to video surveillance. Now, they own major video surveillance, LPR and body camera providers...
Hikvision Global News Reports Directory on Jul 15, 2019
Hikvision has received the most global news reporting of any video surveillance company, ever, ranging from the WSJ, the Financial Times, Reuters,...
Vivotek Trend Micro Cyber Security Camera App Tested on Jul 15, 2019
Vivotek and Trend Micro are claiming five million blocked attacks on IP cameras, with their jointly developed app for Vivotek cameras. This new...
Beware African 50,000 IP Camera Contract Scam on Jul 12, 2019
A “Nigerian Prince” scam for the video surveillance market is going around. You, or at least we, could be lucky enough to be the single bidder for...
Axis ARTPEC-7 P1375-E Camera Tested on Jul 12, 2019
Axis claims the new P1375-E box camera with ARTPEC-7 chip delivers "clear, sharp images in any lighting condition." But how well does it do? We...

The world's leading video surveillance information source, IPVM provides the best reporting, testing and training for 10,000+ members globally. Dedicated to independent and objective information, we uniquely refuse any and all advertisements, sponsorship and consulting from manufacturers.

About | FAQ | Contact