![6355 Sync-it normal](https://static.wixstatic.com/media/82e09e_60e235cc37064fe292004997051b1c3e~mv2.jpg/v1/crop/x_1326,y_0,w_3286,h_3390/fill/w_280,h_289,al_c,q_80,usm_0.66_1.00_0.01,enc_auto/6355%20Sync-it%20normal.jpg)
4 ways to use it...
Normal speed
LEDs increment at a rate of 1 every frame (40 or 33ms), a beep is precisely timed to the start of the zero frames white LED. When viewed on a monitor or EVS playback, if the beep coincides with the red LEDs, sound is early, if green sound is late. The OLED displays the audio-video offset in frames.
![DSC_6339.jpg](https://static.wixstatic.com/media/82e09e_eaf4b3012e084aa1b15f25eba5490a8d~mv2.jpg/v1/crop/x_1156,y_98,w_3419,h_3520/fill/w_278,h_286,al_c,q_80,usm_0.66_1.00_0.01,enc_auto/DSC_6339.jpg)
Double speed
LEDs increment at a rate of 1 every 1/2 frame (20ms), the increased speed improves the precision of the sync measurement, and is ideal for 4k/UHD use. In 25fps mode, OLED display shows audio-video offset in milliseconds.
![DSC_6334.jpg](https://static.wixstatic.com/media/82e09e_d253fcdc21f54eafbf6651616c0139b6~mv2.jpg/v1/crop/x_1341,y_0,w_3447,h_3481/fill/w_288,h_291,al_c,q_80,usm_0.66_1.00_0.01,enc_auto/DSC_6334.jpg)
Slow speed
For assessing long delay times (e.g satellite delays), slow speed increments the LEDs at half second intervals with a per half second display on the OLED.
For longer delays...
![DSC_6360.jpg](https://static.wixstatic.com/media/82e09e_b70e60fd99b746a5a7d3efddbe85dc9a~mv2.jpg/v1/crop/x_18,y_0,w_3311,h_3453/fill/w_70,h_73,al_c,q_80,usm_0.66_1.00_0.01,blur_2,enc_auto/DSC_6360.jpg)
Pause mode
LEDs rotate as in normal speed, but with a random pause introduced halfway through the cycle in case your sync happens to be exactly 1s adrift.