Urgent! ! ! ! ! ! ~ video acquisition problem!

(1) The "A/V OUT" of the camera is an analog AV signal output interface, which seems to be a plug inserted into the camera, but actually it is divided into video and left and right audio. At the other end of this line, there are usually three AV terminal plugs: yellow for video, red and white for left and right audio, and the advanced one has a four-pin S terminal, which is also a video plug.

(2) The "Tian Min" acquisition card is a device that collects audio signals through operating software and collects the signals into a computer. There are two kinds of acquisition cards: only video signals and audio and video. Generally, there is an AV terminal board (marked in) on the audio and video acquisition card, an S terminal board (also for video) below, and then the entrance of an audio block of about 3.5 below. At a higher level, more audio and video can be output in real time for TV to watch the collected content in real time.

(3) The questioner wants to buy a 3.5 plug and switch to two lotus plugs (seats). If you don't have a seat, you can buy a plug and then buy a seat-to-seat conversion gadget. These audio appliances can be seen everywhere in the market. You can tell at a glance that they are always below 10 yuan.

(4) Use a 3.5-turn showerhead audio cable. If it is an audio and video acquisition card, of course, it is a 3.5-head card, and the two showerheads at the other end are connected to the red and white audio showerheads from the camera.

(5) If the acquisition card only uses video signals, plug 3.5 heads of the 3.5-turn showerhead audio cable into the computer.

Connect the rear stereo to the line audio entrance next to the socket (choose one of the three seats behind the computer and plug in the blue one of the six seats). Double-click the taskbar speaker, select the option properties, select the mixer type as "Recording", and check the recording control, CD volume, line volume, etc. Make sure that the recording control window appears and turn up all the sound that can be recorded. If you want to hear real-time sound, select the mixer type as "main volume" and there is a "blue input at the back" check box. Make sure that the main volume window appears to increase the volume of "Rear Blue Input".

(6) The camera shot at 16: 9. It doesn't matter if it looks distorted on the computer. The TV at 4: 3 is watched as 16: 9. If you want a normal 4: 3 full-screen TV broadcast. Set the camera to 4: 3 before shooting, and the acquisition card software cannot be adjusted.