From the Latin emissio , the term emission is related to the action and effect of emitting (throwing or throwing something out, putting titles or securities into circulation, expressing an opinion or judgment, launching Hertian waves to spread information).
An issue, therefore, can be made up of the set of public effects or other types of securities that are put into circulation. For example: "Telefónica has announced the issuance of one million new shares for a total value exceeding ten million euros" , "The issuance of debt is the only alternative we have left to save the company . "
The television or radio are usually also receive the name issue: "In today's broadcast we will have the presence of the last champion of the Paris Open" , "The issuance of next Friday will be postponed, as will be held municipal elections" .
Pollutant emission is called, on the other hand, the waste that is emanated by human activity, whether industrial or domestic, and that affects the environment. The emission of toxic gases by cars is known by the name of vehicular emission , and contributes considerably to the formation of smog in cities, which makes it difficult to breathe, as well as the recovery and care of those suffering from diseases such as asthma.
The atmospheric emissions are formed by all substances discharged into the atmosphere as carbon dioxide, nitrogen oxide, carbon monoxide and sulfur dioxide. This definition implies that the pollution produced by cars is part of both vehicle emissions and atmospheric emissions, which shows the breadth of these types of categories.
Although not all singers and song teachers agree on the hierarchy of the different concepts that revolve around the emission of the voice, breathing is usually considered very important by a large majority; The fact is that the air that comes out of the lungs is the only element that makes contact with the vocal cords, to make them vibrate and generate what, later on, will become notes.
One of the most important points to take into account when breathing during the performance of a song is the amount of air required; If you breathe in excessively, it is more difficult to retain and manage the air, so it is likely that it will escape and exert too much force on the vocal cords, or that it will generate a greater exhaustion than expected and that this will affect the performance. To begin with the process of a correct emission of vocal sound, it is essential to learn to use small portions of air, the necessary ones at all times.
Once breathing is controlled, it is necessary to make use of the resonators present in our body, bone parts such as our cheekbones and our ribs, to ring, beautify and efficiently project each one of the sounds that we produce. The healthy emission of the voice is characterized by the absence of fatigue and discomfort after singing, and by a flow of sound that does not require the use of a microphone, given the intelligent use of the natural amplifiers that we have.