So we are having difficulty keeping our audio synced to the video during livestreaming at our Church.
We stream at 1080p @ 29.97 fps. We have the latest NDI tools installed. We use 2 Birddog 4k cameras (the P400s) wired directly via CAT6 to a new Ubiquiti GB switch and then to our computer all over a GB network. The cameras are set at 1080p @ 29.97 fps. We use x264 compression. The audio comes in directly via an analogue to digital mixer then to a USB port on our computer. Our audio is set to mono at 44.1 kHz with a 160 bitrate. We have added about a 400ms delay in OBS to the audio. However, at times the audio drifts in and out of sync with the video, generally the video falls behind. I assume that the audio remains constant and it is the video input that is variable. Can't seem to keep the video and audio matched.
Just wondering if there is any particular setting needed to keep the audio synced to the video. Why does the time between the audio and video vary? Would it be better to have the audio converted to an ndi source? I am thinking of installing the Audinate Dante Avio to see if that would assist?
We use 64 bit Windows 10 laptop with an i7 9th generation intel chip and a Nvidia GeForce 1650 graphics chip. We have 16 GB of ram. We only run OBS when streaming.
Any feedback is most welcome.
Thanks.
We stream at 1080p @ 29.97 fps. We have the latest NDI tools installed. We use 2 Birddog 4k cameras (the P400s) wired directly via CAT6 to a new Ubiquiti GB switch and then to our computer all over a GB network. The cameras are set at 1080p @ 29.97 fps. We use x264 compression. The audio comes in directly via an analogue to digital mixer then to a USB port on our computer. Our audio is set to mono at 44.1 kHz with a 160 bitrate. We have added about a 400ms delay in OBS to the audio. However, at times the audio drifts in and out of sync with the video, generally the video falls behind. I assume that the audio remains constant and it is the video input that is variable. Can't seem to keep the video and audio matched.
Just wondering if there is any particular setting needed to keep the audio synced to the video. Why does the time between the audio and video vary? Would it be better to have the audio converted to an ndi source? I am thinking of installing the Audinate Dante Avio to see if that would assist?
We use 64 bit Windows 10 laptop with an i7 9th generation intel chip and a Nvidia GeForce 1650 graphics chip. We have 16 GB of ram. We only run OBS when streaming.
Any feedback is most welcome.
Thanks.