2020年4月15日 星期三

USB3.0 USB2.0 FEBON189 UVC SDI capture card


In STOCK NOW!! 



PCBA version:



Video latency is just 80ms (0.08sec)




Comparable USB3.0 /USB2.0 
UP to 1920X1080P 30fps @YUV (USB3.0)
 
SDI INPUT 
 1920x1080p 60/50/30/24p
1920x1080i 60/50fieled
1280x720p 60/50/30/24p 

UVC /UAC OUTPUT 

Video : UVC   (USB VIDEO CLASS)
audio:  UAC (USB AUDIO CLASS) 48KHz PCM Stereo

VIDEO input :

  1920x1080p 24/30/50/60fps, 1920x1080i 50/60 field,  1280x720p 50/60 fps

UVC output format

UVC OUTPUT FORMAT

USB2.0

Resolution and frame rate

USB3.0

Resolution and frame rate

MJPEG

176x144@30fps,

352x288@30fps,

320x240@30fps,

640x480@30fps,

1280x720@30fps,

1920x1080@30fps

176x144@30fps,

352x288@30fps,

320x240@30fps,

640x480@30fps,

1280x720@30fps,

1920x1080@30fps

YUV



176x144@30fps,

352x288@30fps,

320x240@30fps,

640x480@30fps,

1280x720@30fps,

1920x1080@30fps



Download USB3.0 FEBON189 UVC USB SDI Grabber card datasheet









Work on Live video stream software

 skype, line, google hangouts, Livehouse in, ustream, livestream, vidyo, adobe meeting,

FUZE meeting, sportcode, Wirecast







LIVE Youtube broadcast ( Google hangouts)









Work on MAC OSX 


MAC quicktime  SKYPE Livestream OBS Wirecast live Youtube ( Google hangouts)






USB BULK MODE 

 More than 3 EA  USB3.0 FEBON189 UVC SDI capture card can work at the same time 








Work on Android Tablet 

Due to the power current is more than 500mA, some android can not support this kit.










 Work on embedded LINUX

febon220plus UVC wifi ap router  is Linux OS with uvc driver




Video and Audio Sync issue
UVC (video) and UAC (AUDIO ) is two independence stream. 
The output from uvc grabber cad is sync. 


After the PC cpu Process, it may have occur No Sync ISSUE. 

This event is the same as the uvc webcam ( logitech webcam, Microsoft webcam)

All of UVC device ( camera , grabber card...) have this Sync issue.  

It is due to the PC CPU process priority.    

It need the software AP to build the SYNC function for Audio and video 

Case 1: No SYNC function for audio and video

   For example: windows amcap (record),  MAC quicktime ( record)...

Case 2:  Own SYNC  function for audio and vide

  For example:  OBS, Live google hangouts Youtube , skype.....

  (The No sync event will be smaller)








MAC OBS record

 

windows OBS record






UAC AUDIO "Bi Bi Bi..." issue
ddddd

The UAC audio "Bi Bi Bi...." is due to the sampling rate.




The sample rate of audio from the HDMI machine are  44.1khz  / 48khz.

The audio sample rate in the PC ( windows / MAC ) must equal the audio  sample rate of HDMI


For eample:


if audio  sample rate of hdmi is  44.1Khz and UAC audio  44.1Khz in the PC, the audio will be normal


if audio  sample rate of hdmi is  48Khz and UAC audio 48Khz in the PC, the audio will be normal


If audio sample rate of hdmi is  44.1Khz and UAC audio  48Khz in the PC, the audio will happen "Bi Bi" noise.


If audio sample rate of hdmi is  48Khz and UAC audio  44.1Khz in the PC, the audio will happen "Bi Bi" noise.


How to Change audio sampling rate in WINDOWS?






How to change audio sampling rate in MAC OSX?

step1: download AP "wirecast"

https://drive.google.com/file/d/0BxkHrXMpwZs6aVRlZzU2ZFc3Nzg/view?usp=sharing

step2: follow the video clip




Comparison Table of FEBON SDI grabber card series.........




USB2.0 FEBON188

UVC SDI GRABBER CARD

USB3.0 FEBON199

UVC SDI GRABBER CARD

USB3.0  FEBON189

UVC SDI GRABBER CARD

UVC Output

Of

USB3.0 Port

Work!

USB2.0 performance

Up to 1280x720p 30fps @mjpg

The limitation is as below

1. USB3.0 XHCI

2. win8.1 / win10 /MAC

up to 1920X1080P 60FPS @yuv

Work

Up to 1920X1080P 30FPS @MJPG

1920X1080P 30FPS @MJPG

UVC output

of

USB2.0 Port

Work!

USB2.0 performance

1280x720p 30fps @mjpg

NO WORK

Work

Up to 1920X1080P 15FPS @MJPG

1920X1080P 5FPS @YUV

HDMI INPUT SOURCE

1920X1080P 60/50/30/24 fps

1920x1080i 60/50 field

1280x720p 60/50 fps

720x480i 60 field

720x576i 50field

1920X1080P 60/50/30/24 fps

1920x1080i 60/50 field

1280x720p 60/50 fps

720x480i 60 field

720x576i 50field

With auto scalar

function

YES!

NO Scalar !!

HDMI input resolution and frame rate must be equal the UVC resolution and frame rate

YES!

Advantage

It is very easy to use

1. No scalar ic “ video distortion “

2. up to 1920x 1080p 60fps YUV output

It is very easy to use

Disadvantage

Video scalar ic distortion

It have many use limitation

Video scalar ic distortion






TO BE CONTINUE .........

沒有留言:

如何正確測試出視訊擷取卡的視訊延遲

 如何正確測試出視訊擷取卡的延遲? 有些廠商採用SWITCH的HDMI輸出連接分配器一路接電視, 一路接筆記電腦....然後, 算出 電視和筆電的差異的秒數  這樣的計算方式會有問題..... 如果測試的電視本身高延遲, 那麼測試出來的秒數差異就會變低, 會有低延遲的假象 就...