Key Features For Your Quick Guide to Dash Cam Features
• Most Dash Cams Record Audio: The majority of modern dash cams have a built-in microphone and record audio by default, though this feature can usually be turned off.
• Speed is Recorded via GPS: A dash cam must have a built-in GPS module to record your vehicle's speed and location data, which is then stamped onto the video footage.
• GPS is a Key Feature: While not all basic models have GPS, it is a standard feature on most mid-range and premium dash cams, providing crucial context for video evidence.
• Audio Can Be Inadmissible: While useful, recorded audio can sometimes be turned off for privacy reasons or because its admissibility in court can be complex.
• You Have Control: Both audio and speed recording are features you can typically control, allowing you to customise the dash cam's data collection to your comfort level.
Yes, most modern dash cams can record both speed and audio, but these functions depend on specific features. Audio is captured by a built-in microphone, a standard feature that can almost always be disabled for privacy. Speed recording, however, is not universal; it requires the dash cam to have an integrated GPS module. This GPS receiver tracks your vehicle's speed and location, embedding the data directly onto the video file. For drivers wanting the most comprehensive evidence possible, choosing a model with both these capabilities is essential. You can find a wide range of advanced front and rear dash cams that offer these features and more.
How Dash Cams Record Speed: The Role of GPS
A common misconception is that all dash cams automatically know how fast you are travelling. This is only possible if the device is equipped with a Global Positioning System (GPS) module. This is the same technology your smartphone or sat-nav uses to pinpoint its location on a map.
When a dash cam has a GPS receiver, it constantly communicates with satellites to determine two key pieces of information:
- Your precise location (latitude and longitude).
- Your current speed.
This data is then synchronised with the video recording. Most dash cams will "stamp" or overlay this information directly onto the bottom of the video footage, often alongside the date and time. This provides an indisputable, synchronised record of where and when an event occurred, and the speed at which the vehicle was travelling.
Why is Speed Data Important?
Having your speed embedded in the video footage can be incredibly valuable. In the event of a collision, it can help prove that you were driving within the legal speed limit and adhering to the rules of the road. This can be a critical piece of evidence to counter false claims from another party suggesting you were speeding. It adds a layer of objective data that strengthens the video evidence, leaving no room for doubt.
Understanding Audio Recording in Dash Cams
Nearly every dash cam on the market today comes with a small, built-in microphone. Its primary purpose is to capture audio from inside the vehicle's cabin. This feature is typically enabled by default right out of the box.
The audio recording can capture a range of sounds:
• Conversations between passengers.
• The sound of your horn or another driver's horn.
• The distinct noise of a collision or impact.
• Your verbal notes immediately following an incident, such as reading out the other driver's number plate.
The Pros and Cons of Recording Audio
While capturing sound can add useful context to a video file, there are also valid reasons why a driver might choose to disable it.
Advantages:
• Contextual Evidence: The sound of a tyre screeching, an aggressive horn, or a verbal altercation can add significant context to an incident.
• Incident Narration: In the moments after an accident, you can speak out loud to record important details like the other vehicle's number plate, make, model, and colour, or describe the behaviour of the other driver while it's fresh in your mind.
Disadvantages:
• Privacy Concerns: Many people feel uncomfortable with the idea of all their private conversations being recorded while driving.
• Legal Admissibility: While video evidence is widely accepted, the use of audio recordings can be more complex, particularly if it involves recording private conversations without consent. To avoid any legal grey areas, some drivers and fleet managers prefer to have it switched off.
Thankfully, every reputable dash cam manufacturer provides a simple way to disable audio recording, usually with the press of a button or a quick change in the device's settings menu. This gives you complete control over your privacy. When choosing a new dash cam front and rear, check how easy it is to manage the audio settings.
Do I Need Both Speed and Audio Recording?
The decision to use these features depends on your personal preferences and what you want to achieve with your dash cam.
For the ultimate level of evidence and protection, a dash cam with both GPS for speed tracking and a microphone for audio is the best choice. This combination creates a complete and detailed record of any incident. The video shows what happened, the GPS shows where it happened and at what speed, and the audio can capture the crucial sounds and spoken details surrounding the event.
However, if your primary concern is simply having a visual record of the road ahead and privacy is paramount, you can opt for a more basic model without GPS and simply disable the audio recording. The video alone is still a powerful piece of evidence.
The Smart Choice for Comprehensive Protection
Modern dash cams are much more than simple video recorders. They are sophisticated data-gathering devices that can provide a multi-layered account of any journey or incident. By capturing speed and audio alongside high-definition video, they offer an unparalleled level of security and accountability.
When selecting a device, look for one with a reliable GPS module to ensure accurate speed logging and check that it offers easy control over the audio recording feature. This puts the power in your hands, allowing you to capture all the data you need for robust evidence while respecting your personal privacy. Explore our collection of the best front and rear dash cam UK models to find a device with the perfect combination of features for your peace of mind.
