IP cameras are widely regarded as the ideal choice for almost all new video observation and recording applications. High-definition IP cameras are ideal for police interview recording. With a high definition camera users are able to digitally zoom in on certain areas of the image in real-time or during the review process with clarity. High-definition IP cameras come in a variety of shapes and sizes. We recommend the following?three form factors for police interview room installations:
A typical?interview room will be outfitted with either a single overview camera or two cameras (one overview and one focused on the interviewee).
Audio is the most critical component of interview recording, selecting a high-quality microphone is a must. An auto-gaining microphone is recommended as it can automatically increase its pickup level when a subject is speaking softly or whispering but decrease it when someone is loud. This maintains a clear audible level and prevents audio distortion that may occur if the mic gain level is raised to high. The placement of the microphone is also important — if the subject will always be in a static location a directional wall mount microphone is preferred, but if they will be moving around the room multiple wall mount microphones or an omnidirectional ceiling mount POE (powered) microphone are good options. In extremely challenging environments a DSP (digital signal processor) can be used to perform echo cancellation or filter out unwanted background noise.
Many interview rooms are bare of sound dampening materials and items. Having a room void of distractions and items that can be tampered with is an ideal environment for conducting interviews however it can also negatively impact the quality of the audio. We recommend considering audio dampening panels to help with echo cancellation.
No system is complete without the proper software. Having the best video and audio quality will not matter much unless you have a reliable and usable software solution to observe and record interviews. There are a handful of purpose-built solutions available on the market today that can be easily found by typing “Police Interview Software” into Google. Our team has been providing interview recording software solutions for over 13 years and are currently shipping our third generation product (Valt). From the perspective of reliability, feature, and ease of use, we believe we have the best solution on the market. Feel free to judge for yourself, contact us for a discussion, schedule a web demonstration, or request a quote.