[PC Guide] Audio and video out of Sync
By: Prism Live Studio. Official
Tags: Live, Multicast, Prism, Live Streaming, Prismlivestudio

Hey， everyone！

This is Editor X with the global live streaming app, PRISM Live Studio.

Have you ever encountered the problem of audio and video out of sync in the live streaming?

And do you know what caused this problem??

Today I want to explain you with the issue.

Is there some people think that ‘Is it related to the multi streaming of PRISM?’

Actually not! ! !

When you live streaming to multi platforms through PRISM,

it is not sent directly to each platform.

First, the streaming data is transmitted to the PRISM server, and then transmitted to each platform through the PRISM server.

And it operates with the same logic regardless of multi live streaming or single live streaming.

Multi live streaming will not increase the consumption of resources on the computer compared to single live streaming.

Therefore, the problem of the sync does not fit is not related to multi-stream.

The exact cause is as follows:

1) It is often caused by insufficient computer specifications compared to data processing and transmission capacity.

-> 1. When setting the transmission, please set it according to the recommended settings.

You can refer to the Prism Help page for recommended settings.

PRISM Live Studio Help page

2. There are two simple ways to determine if your computer’s specifications are sufficient.

a. Judge by using beauty effects.

-> If the sync does not match when using the beauty effects, turning off the beauty effect features may help to improve the problem.

b. Judge graphics card performance.

-> The recommended graphics card for normal live streaming is NVIDIA GTX 1060 or the same level of graphics card.

When you live streaming with games, we recommend the NVIDIA RTX 2070 or NVIDIA GTX 1080 or higher graphics card.

If your graphics card is at an NVIDIA GTX 960 or lower level, it may affect the live streaming.

(If you don’t know what level your graphic card is, you can search for ‘graphic card ranking’ on the internet and compare with it.)

2) When an external device is added, data transmission speed between devices may be different.

-> From version v2.0.0, it can be adjusted through the ‘Sync Offset’ features.

Sink offset usage:

1. Click the Settings button on the audio mixer.

2. Adjust the sync offset value of the audio device where the delay occurs.

For reference, the unit used in synk offset is ‘ms’. (1000ms = 1s)

3) Program priority may affect synk.

-> You can improve the sync problem by adjusting the PRISM priority.

How to adjust the program priority:

1. First, press ‘Ctrl + Alt + Delete’ to enter the Task Manager.

2. In the ‘Details’ tab, find PRISM Live Studio and right click on it.

3. Click ‘Set Priority’ and select ‘Real Time’.

4) This can happen when network conditions are poor.

-> We recommend using a wired network rather than a wireless (WI FI) network.

The above method seems to improve the general sync offset phenomenon ^^

If the above solution does not work,

Please send your User ID to our representative email .(prismlive@navercrop.com)

We will check for more detailed causes and provide solutions.

Thank you!!