BUILD YOUR VOICE-Harsh and heavy

Harsh and heavy voice is something for which many men aspire throughout their lives.Speculations are that harsh and heavy voice is a symbol of masculinity,it makes you stand out of the crowd,makes you heard and earns you respect.In Japan, men practice their whole lives to not have a "soft" voice.Some of these opinions are true to some extent.According to a greek myth heavy voice is said to be a feature of strong men.But sceintifically heaviness in voice has nothing to do with strength and power.The right tuning of the glottis and required amount of strain on the voice box would be enough to make your voice loud,clear,thunderous and yes heavy too.

Heavyness in your voice depends on the kind of work you do and how much you speak on an average.For eg. body builders have heavy voice because lifting weights strengthens your neck muscles due to which their voice gets more compressed.Similarly a few teachers and proffessors have harsh voice because they make extensive use of their voice at higher overtone which permanantly soars their throat.What i illustrate here is a few thoughts from the internet,my personal experiances derived while experimenting with my vocal cords and a few excercises my cousin learned in the heavy metal training school.It took me nearly a month to adjust my vocal cords to the optimum pitch and gain some heaviness in my voice.

Before we start i want all you to know that excercises enlisted here can damage your throat miraculuously if performed out of hyper-energy and excitement.Stay cool and calm and let things happen in course of time.Nothing will be visible in one or two days.To take effect it would almost take a months.And lastly a disclaimer"I dont take any responsiblity if you rumple your voice,damage your larynx or vocal folds and ultimately leak out your voice".
Things To Do
1)The smooth muscles of your throat should not ever hurt while preforming death metal or black metal vocals. When you first start out the exterior muscles of the throat will become sore from holding your throat in a new position though.
2)The sound should be originating from the spot in your throat located at the center of your collar bone where it dips in a bit. Growl from that spot.
3)Be a badass and learn how to sing clean vocals as well, you'll be more useful in a band.4)Constantly experiment with what your throat can do!
5)Learn to control rasp and phlegm. Rasp = air coming up; phlegm = saliva in your mouth/throat .
6)Harsh vocals will grow in volume as you gain skill with them and use them correctly.Don't use distortion or effects to cover any lack of vocal ability. It sounds bad and it's obvious why you did it.
7)To create a more "brutal" sound, you can experiment with saliva in your mouth. It can be trapped between your tongue and throat. It's that "gurgling" you hear in many songs. An open throat is the key. The notes sung and air must come up with ease. One can use their tongue to deflect air being forced up and change tone. The lips are the second method of changing tone. You should never change tone by tightening your throat. There are many techs used in harsh vocals, but keep with a simple growl and scream until you've gained quite the skill within this vocal type.
8)Warm up your voice before giving a public performance. "Warming up" can mean anything from singing midtone melodies to delivering your vocal patterns in a clean chest tone. Even humming for 5 minutes would be more beneficial to you than not warming up your voice at all. When performing live, drink lukewarm water in between songs. Cold water shocks the voice and warm water...well, it doesn't taste that great. Following these simple rules will help protect and strengthen your vocal chords.
9)A good way to practice your grunts is to say the letters a,e,i,o,n,u. As you get better at your grunts, try doing this faster.
10)The "cookie monster" effect cannot be reproduced by straining your voice. That will only damage your vocal chords. You have to push through your abdomen. All of your vocal strength comes from the diaphragm. It also helps if your back is in a fixed position. Don't slouch or leave your spine limp. Inhale and belt out a deep roar by loosening your vocal chords. Your throat has to be relaxed in order for your growl to rumble with intensity. Again, don't force your voice to crack. If it still doesn't crack, then your vocal chords simply weren't made for pitch will be lower. This inhaling technique can produce an extreme range of pitch, allowing you to both grunt and squeal like a pig. The incoming airflow will be nowhere near the volume of normal speech. You will need to speak using exaggerated lip movements and the front of the tongue while keeping the back of the tongue muscle in place. While an "inhale vocal tech" may sound "cool", be careful using it. It can (and likely will) damage your vocal cords. The inhale sound can still be created from properly done harsh vocals but requires range needed.
11)Don't smoke, and if you insist on drinking, drink in moderation. Smoking may deepen your voice, but it will also reduce your breath support. Delivering death vocals requires a great deal of energy, and drugs of any sort will only emasculate your staying power. Exercise wouldn't hurt. You'll need strong neck muscles to support the pressure that extreme metal vocals put on your neck area.
12)How your mouth is shaped will help define the tone of your voice, i.e., if your mouth is opened like a fish' mouth, a lower tone can be achieved. Also, cupping your hands around the microphone will not only make your voice louder, but it can also help to deliver deeper growls.

Over time you'll learn your range, skills increase and you can try to achieve a distilled commanding voice.Once you form the habit of speaking harshly with a monotonous heavy voice the delivery of your stage speech sounds less diffident giving you great relief and satisfaction.Thats all what i learned and know to the best of my knowledge.