I. Intro

Aside from meeting the basic requirements for using Lark (see Hardware Requirements for using Lark), your device should meet the additional requirements below to ensure smooth audio and high-resolution video during meetings and livestreaming.

II. Steps

Video meetings

Version: V3.24 and above

For 720p video	Device requirements
	As the meeting host	As a participant
	Clock speed: 2.6 GHz	Clock speed: 2.3 GHz
	Cores: 2 Threads: 4 Memory: 8 GB or above

Livestreaming

Version: V3.24 and above

For 720p video	Device requirements
	As the livestream host	As a livestream viewer
	CPU frequency: 2.6 GHz	CPU frequency: 2.3 GHz
	Cores: 2 Threads: 4 Memory: 8 GB or above

Screen sharing

Version: V3.39 and above

The default resolution of a shared screen is 1920p x 1080p. Device requirements for different frame rates are as follows:

Frame rate	Device requirements		Maximum bandwidth needed
Frame rate	Mac	Windows	Maximum bandwidth needed
15	Memory ≥ 8 GB, CPU cores ≥ 4, clock speed ≥ 2.2 GHz Or Memory ≥ 8 GB, CPU cores ≥ 2, CPU core ratio = 2, clock speed ≥ 2.2 GHz	Memory ≥ 8 GB, CPU cores ≥ 4, clock speed ≥ 2.6 GHz Or Memory ≥ 8 GB, CPU cores ≥ 2, CPU core ratio = 2, clock speed ≥ 2.6 GHz	2 MB
8	Memory ≥ 4 GB, CPU cores ≥ 4, clock speed ≥ 1.6 GHz Or Memory ≥ 4 GB, CPU cores ≥ 2, CPU core ratio = 2, clock speed ≥ 1.6 GHz	Memory ≥ 8 GB, CPU cores ≥ 4, clock speed ≥ 2.6 GHz Or Memory ≥ 8 GB, CPU cores ≥ 2, CPU core ratio = 2, clock speed ≥ 2.6 GHz	1 MB
5	Other	Other	500 KB

When the option "Optimize for video clips" is selected, the video resolution is 1280p x 720p by default. The device requirements for different frame rates are as follows:

Frame rate	Device requirements		Maximum bandwidth needed
Frame rate	Mac	Windows	Maximum bandwidth needed
30	Memory ≥ 8 GB, CPU cores ≥ 4, clock speed ≥ 2.2 GHz Or Memory ≥ 8 GB, CPU cores ≥ 2, CPU core ratio = 2, clock speed ≥ 2.2 GHz	Memory ≥ 8 GB, CPU cores ≥ 4, clock speed ≥ 2.6 GHz Or Memory ≥ 8 GB, CPU cores ≥ 2, CPU core ratio = 2, clock speed ≥ 2.6 GHz	2 MB
15	Memory ≥ 4 GB, CPU cores ≥ 4, clock speed ≥ 1.6 GHz Or Memory ≥ 4 GB, CPU cores ≥ 2, CPU core ratio = 2, clock speed ≥ 1.6 GHz	Memory ≥ 4 GB, CPU cores ≥ 4, clock speed ≥ 2.4 GHz Or Memory ≥ 4 GB, CPU cores ≥ 2, CPU core ratio = 2, clock speed ≥ 2.4 GHz	1 MB
10	Other	Other	500 KB

View device configuration

•Mac:

Click About This Mac > System Report to view the CPU's speed, number of cores, and memory.

•Windows:

Method 1:

In Task Manager, go to Performance > CPU to view the base speed, number of cores, and number of logical processors.

Method 2:

Use a third-party tool (such as CPU-Z) to view the number of CPU cores and threads.