This guy had a very bad throat - a mess, in general, and not ligaments. Tore and did not spare himself. He played as an actor the same way.
So everything was natural here, if I may say so.
If you want to copy - start with splitting and wild expression in the presentation of important syllables. They need to rrrrrrr like thunder.
It's like you growl like an angry dog in some words. Well, without emotion, acting, the strongest intonation effect is nowhere.
Make exactly the same voice as another person's. We are all individual, and even if you learn to apply all the techniques that Vysotsky did, your voice will sound similar, but your way.
As for technique, the highlight of Vladimir Vysotsky's voice is conversation and singing with the connection of arytenoid cartilage. This technique is called rattle, also known as jazz growl. You need to train it very carefully, as there may be painful sensations.
You can cough or clear your throat to find this 'gurgling' sound, but I recommend that you master this technique under the supervision of a teacher, as there is a high risk of getting vocal trauma if you practice poorly.
The peculiarity of Vysotsky's vocals (like Louis Armstrong's) is that it is the result of non-standard, damaged ligaments. You can, of course, as mentioned above, depict the same with the methods of rocker splitting vocals using false ligaments. But, I dare say, Monsieur Vysotsky himself was very cool about this form of parody.
There are two ways - harmful and competent. The first one has already been described, it was used by Vysotsky, and, as far as I hear, Leps, for example, uses it now)) And the second is to use advanced vocal techniques of "extreme" vocals. They are safe as they are only given after basic voiceover.
without mats, without bad words, I smoke and drink, I am healthy