Does anyone know if the bitrate increases when going from 1440p at 30fps to 1440p at 60fps on the new 2.0 firmware?
27,6mbps on High setting 1440p60 HDR on using .TSWell, OK, I looked at some older V3 files and this is what I got.
@30fps the bit rate was 30.41 Mbit/s.
@60fps the bit rate was 26.76 Mbit/s. (this varied slightly from file to file, so occasionally I might see 26.74 or 26.72)
There is twice as much data coming from the sensor, so the processor probably has less time for writing data to the memory card. The faster processors in cameras like the A129 Pro can manage higher 60fps bitrates, but they are also more expensive.From Viofo reply it sounds like recording at 60fps throws more data at the card so they have reduced tbe bitrate to compensate and avoid a buffering issue.
It is already very high bitrate now, increasing bitrate may cause recording issue with some cards.
Viofo said it could be "recording issues with some cards". Nothing about processor (more than that, bigger bitrate means less compression and processor works less stressed). As far as I see in Viofo's answer, the processor COULD handle higher bitrates. They are affraid by some card related issues. In fact, 30 Mbps means about 4 MB/s, or, if double the bitrate (but not absolutely necessarly) , 60 Mbps means about 8 MB/s, still under the writting speed of modern micro SDs. Micro SD cards class 10 or UHS 1 can write at (at least) 10 MB/s (80 Mbps). So, I don't see any obstacle in using higher bitrates. This is theoretically, because practically I think that the memory bus is slower and can't get to the performances of SD card.There is twice as much data coming from the sensor, so the processor probably has less time for writing data to the memory card.
Also AVC/H264, not HEVC/H265.10 Mbit/s running 1080p @30 fps was about all you could expect.
Also AVC/H264, not HEVC/H265.
Doubt it will do it.My next setting is 60fps with HDR on.
Doubt it will do it.
HDR is by definition a combination of two frames already, so taking two frames at 60fps means the sensor must be able to do 120fps normally
Thread starter | Similar threads | Forum | Replies | Date |
---|---|---|---|---|
L | Newbie! Need helps/ intial set up for A119 V3 | A119 V3 | 4 | |
B | Blurry and flickering at night, not a frequency issue but something else A119 V3 firmware V2.6_20220808 | A119 V3 | 5 | |
N | Brand new A119v3 issue | A119 V3 | 6 | |
K | a119 and battery drain question | A119 V3 | 3 | |
C | Is the A119 V3 1440p 60 FPS... real 60 FPS? | A119 V3 | 9 |