So based on the size of the memory card and the bit rate, how can we calculate the total recording time? You are running your device at a p resolution for best video quality, resulting in a bit rate of approximately 15 Mbps. Divide this by 15 Mbits and the result is the number of seconds you can record.
In other words, with a GB card the SGGCX2 can record continuoulsy for 1 day, 13 hours and 55 minutes before it will automatically start to overwrite the oldest footage. If you just need a quick approximation of the total recording time in hours, of a dash cam or any other digital video camera, you can use this quick formula:. In other words, take the memory card capacity in GB, divide it by the bit rate, and multiply the result by 2.
Of course there will also be some formatting data on the card, and the space is not always used optimally. Thus, the simplified formula will give you a pretty good approximation of your actual recording time. There may well be an overhead for the filing, as opposed to one long video.
Simple maths says that GB is 4 times the size of storage and therefore it should be able to record 12 hours. That would mean on average it would take 80 MB of your data allowance to watch the 20 minute p video. There is a lot of variance of the file size of videos, but the average for regular HD p is around 4 MB per minute.
Maximum upload size The maximum file size you can upload is GB or 12 hours, whichever is less. Here are some examples of what MB will get you….
What can you do with MB of mobile data? Begin typing your search term above and press enter to search. For my methodology, see my explanation below the chart. To ensure that it was empty, I reformatted it. Then I set the video resolution and frame rate to each of the settings above. The available space noted by time remaining on the SD card is noted in the top left of the LCD screen. I then divided the time remaining by 64 the number of GB on my card to determine the number of minutes per GB of storage space.
Please note that the video size is approximate. As noted in the next section, there are lots of factors affecting the size of a specific video file. The purpose of this post is to give an overview and an approximate base.
Of course, if you replicate my settings exactly, your file size and card capacity will also match. There are a number of factors that will affect the size of each video. They include video bitrate, frame rate, video length, video container, and other files stored on the same card.
Does video resolution affect file size? You might think that this would be a significant factor when comparing memory card capacity. But file size actually depends more on frame rate and bitrate.
For example, in my tests, both p fps and 4K 60fps both generated an identical file size MB. The bitrate for both was 60 Mbps. Video length was 60 seconds. To help you plan card usage, here is a chart that breaks down the video capacity of each memory card size. Left column: First number is video resolution 4K, 2,7K, etc. Second number is aspect ratio , Third set of numbers shows frame rate 24, 30, etc. Here is the detailed breakdown for of the video capacity in hours.
This chart is the same data, except with data converted to hours. They come in sizes from 32GB to 1TB. Interested in more options?
Here are the best microSD cards for GoPro cameras all models. A 16GB memory card can hold approximately 9 videos. This is based on 4K resolution at 60fps — a standard GoPro video resolution. Average video time of 3 minutes.
0コメント