Mtz
Well-Known Member
- Joined
- Nov 15, 2012
- Messages
- 4,416
- Reaction score
- 3,144
- Location
- Nice place
- Country
- Romania
- Dash Cam
- Viofo A229 Pro TeleQuad (the best dashcam in the world!)
The A229 Pro was able to be 3CH because it was the possibility the rear camera to have its own chipset. At that time there was no processor to record in good conditions in 3CH mode. Even you are scared about the lowering the bitrate on 3CH, it is not a disaster. Average Joe will not observe the difference and 99% of dashcams buyers are not video encoding specialist. More than that, on most of the videos they are looking on a smartphone, there are rare cases when they are watching their dashcam videos on a big screen TV to see a difference.
When you really need a 3CH dashcam you will not look at the bitrate, if you want the best, you will look for the best.
If A229 Pro is poor in 3CH mode show us a better 3CH dashcam and tell us that other managed to have a better image quality because they have higher bitrates. And more than that, one of the most sold cameras at least in the USA is the Blackvue and Blackvue had always lower bitrate compared to Viofo. And because of that low bitrate I dont see people not buying the Blackvue.
You are writing the things about Viofo lower bitrate like they are stupid, or they dont know it is lower or they want to make angry a Dashcamtalk forum user. Viofo always pushed the bitrate limits and because of that push they have returns because of overheated cameras. For them was more simple to keep Blackvue bitrate, it would be a more safe business.
Of course, if Viofo will go ever to an Ambarella chipset maybe you will see higher bitrates but we should not forget that when this forum was born, almost of dashcams were with Ambarella chipsets, the bitrate was high, but they lost the battle against Novatek which offered same or better quality at a much lower bitrate. If you want to see higher bitrate in specs, no matter if the video quality is better maybe you can find some Ambarella dashcam and use it.
I remember in some threads you are asking 100mbps. 100mbps for a dashcam is wasted bitrate, wasted space on card. If GoPro can do 100mbps it is because it is not recording 24 hours a day, it is not exposed 24 hours a day to sun or cold nights. Normally GoPro or other action cameras with hight bitrates are used as much their battery can run power. Maybe the GoPro didn't implemented the autostart when power is connected just to avoid their camera to be used 24 hours a day in a car for example because they knew it will fail. When Gitup was released, it has autostart from the launch, but fortunately for them not many people used the Gitup as dashcams.
If I will give you a 4K 50mbps original video and if you will encode it at 500mbps on PC, the resulted video will have 5x size and no better quality. When encoding videos there are some specifications like Q-Factor and if its value is over some value, the bitrate is wasted because there is no gain in video quality.
Just think that the 4K from Netflix is just 16mbps so it is possible to encode 4K at 16mbps which is not accepted in any good dashcam and Blu-Ray bitrate is about 40mbps average bitrate. So if a Blu-Ray can be released at 40Mbs, why a dashcam can not?
The best for you and us is to stop asking 100mbps for multichannel daschams. Also I would like to have a car running at 300 km/h but in reality in my country there is no road to allow such speed. And because of this I will not cry forever that I can not drive at 300 km/h because I don't have such car.
