What are some ways to release gas without any noise?
920541
I like this one!  When sitting, lean slightly to one side and depress your stomach muscles.  We in the military use this and call it SILENT< BUT DEADLY!
404915
Drive less. Get a tune up, in general use less gas.
897121
You don't need to shake the bottle.  A mentos has lots of little nucleation sites, which causes the end result of a lot of gas being released because it's no longer being held in suspension in the liquid.  If you want to get an even bigger reaction, table salt or granulated sugar would be best because there is a lot of surface area, hence more nucleation sites, and then more gas being released faster.
1102426
BY PRESSURIZING IT AT HIGH PRESSURE & COOLING THE GAS SIMULTANEOUSLY IN LOW PRESSURE
279362
when you slepp (useually anyway!) u are lying down. the stomach acids and enzymes inside your digestive channell release gasses when they break down food. these gasses are carbon dioxide and methane. anyway, when your laying down, those gasses are free to travel back up the channell and into your stomach and oesophegus, eventually back into your throat ana mouth. the only way you could treat this sympton without an air freshener in your mouth, is to eat a couple of tictacs before you go to sleep
222644
Suppress the burp so that it doesn't make a sound, then let the air out of your mouth unnoticeable. If you do make a noise, say "excuse me" of course!
929941
don't say anything and leave room quickly but with coolness and let them discover the fowl smell for themselves after you’ve left. if it so happens that you "let loose your inner bubble" and you cannot leave the room, laugh along with every one else, try not to point any fingers at a person who is suspected of the noise. If  you let loose a tremendous noise that cannot be discerned from who’s backside it cam forth, say that you must leave the room because you...well make something convincing up and try not to make you voice crack under the strain of controlling your face, stifling a laugh, or collapsing under the weight of embarrassment. hope that helps you in you smelliest moments.
1010774
If you can burp silently without alerting the surrounding people, burp where you are. \n\nIf you burp every 5-10 minutes you have a medical problem and you need to adjust what you are eating or drinking.  Take beano for veggie-burps, Lact-aid for ice cream burps, and avoid carbonated beverages.  Eat and drink VERY SLOWLY.\n\nIf you have to hella burp like a son-o-gun you need to go to the bathroom.  Even if the hella burp is every 30 minutes.
240379
There's a product called "Bug and Tar Remover" made by #7 available in most auto parts and department stores. It works pretty good. You could also try a LITTLE gas on a rag, but just dampen it a LITTLE. Do it outdoors.
530887
Fill a long tube with solids and try to blow air through it.\nPut a flabby piece of rubber at the end.\nYou will get all your answers then.
197184
I do just for the simple reson that I can't stand silence. another alternative is using a fan. it will make just enough noise to break the silence. Good luck
737309
use a can of compressed air
1034871
Most fart gas comes from swallowed air and consists largely of nitrogen and carbon dioxide, the oxygen having been absorbed by the time it reaches the anal opening. These gases are odorless, although they often pick up other (and more odiferous) components on the way through the bowel. They emerge from the anus in fairly large bubbles at body temperature. A person can often achieve a good sound with these voluminous farts, but they are commonly (but not always!) mundane with respect to odor, and don't feel particularly warm.\n    Another major source of fart gas is bacterial action. Bacterial fermentation and digestion processes produce heat as a byproduct as well as various pungent gases. The resulting bubbles of gas tend to be small, hot, and concentrated with stinky bacterial metabolic products. These emerge as the notorious, warm, SBD (Silent-But-Deadly), often in amounts too small to produce a good sound, but excelling in stench.
405797
heat the pure gas in a sealed tube in absence of air. it breaks up into its components. you've got solid yellow sulphur.
163000
there is really no way of controlling the sulphur. is it the smell that you are trying to control, or the amount of these emmissions that are escaping?
465003
I do have a method but it is impossible to describe in text. It involves the intake of air to the gullet then burping like usual. However you could just swallow somw air first.
870075
try this:\n\n1. go to CONTROL PANAL\n2. make sure you have CATEGORY VIEW on\n3.  click on SOUNDS,SPEECH AND AUDIO DEVICES\n4. on the left you should see a tab that says SEE ALSO\n5. click on ADVANCED VOLUME CONTROLS \nand see if you have anything on mute. unclick it and see if that works. \n:-)