| Certification Type： | Voluntary |
| Certificate Validity： | No limit |
| Local Testing： | Not required |
| Local Representative： | Not required |
| Marking Requirement： | No |
| Modular Approval： | Not allowed |
Product type
The types of equipment following in the certification mainly include: conference large-screen equipment, conference all-in-one machine, audio and video peripherals, audio peripherals, video peripherals, etc.
Certified content
DingTalk certification tests are divided into video certification and audio certification.
Video certification includes objective evaluation in the laboratory and subjective evaluation of video reality, involving the examination of clarity, noise, aberration, color, tone, time characteristics, AI capabilities, artifacts and other aspects. After certification and evaluation, in order to ensure the consistency of the basic performance of various intelligent conference video equipment, so as to provide a convenient and good user experience.
Audio certification includes subjective testing and objective testing items under anechoic chambers and reverberation chambers, covering speech intelligibility, sound acquisition and playback, echo and double talk, noise reduction and reverberation, and multiple simultaneous speech. The certified terminal can be well adapted to DingTalk Conference to ensure the consistency of subjective and objective tests, so as to provide customers with a high-quality end-to-end voice call experience.
Certification process
Click this link to enter the certification application page.
As a cooperative laboratory of DingTalk conference certification, CTTL Terminal Labs will work with DingTalk to jointly promote certification testing services and further improve the audio and video interactive experience.