Is it possible to digitize VHS video using a PC audio card?

Question

Video processing

Good health.

There is such a question: you don’t really want to buy a TV tuner or similar devices in order to digitize one video cassette. But I have a cable "Two RCA bells for video and audio - jack 3.5", which can be connected to the computer via the audio input for the microphone.
Using this method, audio from a videotape is perfectly recorded if I use only the audio output of the VCR. But I need video, and here's what happens:

If I plug an RCA bell into the VCR's video output, when I play the videotape on the PC, I can clearly see the analog signal going into the microphone jack. The spectrogram confirms that this is not noise - it is really a changing signal, it changes over time, breaks off at the end of playback, etc.

I don't know much about the video cassette encoding device, the description of this technology on a few sites is very superficial.

Is it possible to somehow find a program that can decode this signal (for example, saved in lossless .wav format) into a video stream, or design it yourself, or is it completely impossible due to the limitation of the supported frequency of the input signal of the computer's audio card?

Answer 1

No impossible. The full video signal has a bandwidth of 6.5 megahertz, the audio card, even if you push it with your knee, will take a maximum of 96 kilohertz, which is two orders of magnitude less.
A tuner that digitizes all this perfectly costs 20 bucks.

Answer 2

Erm... the incoming is not a mic input. This is LINE. The microphone input works as an OUTPUT
No, you cannot receive a VIDEO signal into an AUDIOCARD. buy a cheap tuner on alik
Or give it for digitization, this is for 1 cassette, I don’t think it’s expensive