Definitions for "ENVELOPE"
Keywords:  adsr, timbre, decay, amplitude, fade
An envelope generator generates a signal that changes through the length of a sound, normally to control the loudness of that sound. An example of its use is to control the volume of a piano sound. It creates a signal that goes from low to high very quickly (the loud bit when the key is pressed), then goes down slowly as the sounds gets quieter. They are also used to drive other parts of the synthesizer, for example the filter.
How the value of a function varies with time, usually defined by 4 factors: Attack, Decay, Sustain and Release (ADSR). The most common usage is with the volume of a synthesised sound in which case the ADSR can be defined as: Attack - the length of time taken from when the note was struck to when the sound reaches it's maximum volume Decay - The length of time taken for the drop of volume to occur after the sound reaches the maximum Sustain - The length of time the sound continues to play while the note is still held Release - The length of time taken for the volume to return to zero once the note has been released.
The outline of a complex waveform showing the maximum and minimum values over time. The attack, decay, sustain, and release regions describe the general musical data acquisition envelope.
Outer covering of airship or balloon, encloses hot air or the gas
the outer covering of some viruses.
the portion of the balloon which holds the heated air (for hot-air balloons) or gas for gas balloons. Constructed of cloth such as ripstop nylon or nomex, or other light, relatively impermeable material.
Keywords:  mta, smtp, header, sender, recipient
the sender and recipient addresses in an SMTP session. These are separate from the addresses in the message headers and bodyforged. The envelope recipient(s) may or may not match the contents of the To: and Cc: headers. In a normal SMTP server, the envelope recipients are the addresses where the message will actually be delivered. In a Bubblegum proxypot mbox or maildir, the envelope sender is recorded in the Return-Path header and the envelope recipients are recorded in Delivered-To headers. They will be above the proxypot Received header, which distinguishes them from the spammer's forged headers below it.
A container for information about the sender and the recipient of an email message. This information is not part of the message header. Envelopes are used by various email programs as messages are moved from place to place. Users see only the header and body of a message.
MTA specific portion of a message containing transport information that isn't part of the message's RFC 822 header.
A curve or surface which is tangent to each member of a system of curves or surfaces, the form and position of the members of the system being allowed to vary according to some continuous law. Thus, any curve is the envelope of its tangents.
The outermost points traced out by a moving curve.
The envelope of any function is the smooth curve passing through the peaks of the function
That which envelops, wraps up, encases, or surrounds; a wrapper; an inclosing cover; esp., the cover or wrapper of a document, as of a letter.
A sealed envelope or wrapper that contains one or more items from the same advertiser. An envelope may contain only one sample at no additional charge. If more than one sample is enclosed, each additional sample will be charged at the applicable volume level rate. (enveloppe – Médiaposte sans adresse)
A thin rubber wrapper that surrounds the tread, sidewall and is tucked inside the curing rim during the pre-cured cold process retreading. It protects bonding materials from humidity within the chamber.
Paper can be folded and glued into envelopes of various sizes and shapes.
a flat rectangular paper container for papers
a flat, flexible container, made of paper or similar material, that has a single opening and a flap that can be sealed over the opening
Keywords:  christoffer, rvad, jesper, sune, yer
Also referred to as trading bands, Envelopes are lines that surround price action and are usually based on a moving average or a percentage ratio of the price action.
Trading bands that are plotted as lines above and below a market normally by plotting a percentage of price around a central moving average.
Lines surrounding an index or indicator that is, trading bands.
The nebulous covering of the head or nucleus of a comet; -- called also coma.
a natural covering (as by a fluid); "the spacecraft detected an envelope of gas around the comet"
The coffin of a document; the scabbard of a bill; the husk of a remittance; the bed-gown of a love-letter.
a great way to incorporate important documents into school-themed pages
A set of properties that can represent the transport information for a document. An envelope associated with an inbound document provides BizTalk Server with the information that it needs to interpret the submitted document. For example, the envelope can contain a pointer to the document definition. An envelope associated with an outbound document gives BizTalk Server the information that it needs to create the document. Envelope properties are optional for most file formats.
Often cash payments for a provider are placed in an envelope. Rather than handing her cash directly, or discussing money, the envelope is left in a conspicuous location for the provider to pick up as she leaves (outcall), or after the hobbyist leaves (incall).
A set of limits for the performance capabilities of some type of machine, originally used to refer to aircraft; -- it is often described graphically as a two-dimensional graph of a function showing the maximum of one performance variable as a function of another. Now it is also used metaphorically to refer to capabilities of any system in general, including human organizations, esp. in the phrase push the envelope. It is used to refer to the maximum performance available at the current state of the technology, and therefore refers to a class of machines in general, not a specific machine.
Usually refers to a graph of the airspeed and altitude of safe operation of a system. The area within the chart is the safe zone, and the area ‘outside the envelope' is the dangerous area. When testing a system to verify the safe expansion of the envelop to a new area it is refered to as ‘pushing the envelope'.
the maximum operating capability of a system; "test pilots try to push the envelope"
a diagram of Columbine High School indicating the diection of Hengel and the two individuals dressed in black
A work of earth, in the form of a single parapet or of a small rampart. It is sometimes raised in the ditch and sometimes beyond it.
It is the metal housing, sometimes made of glass, of a vacuum tube which is airtight.
The protective shell of a building that separates the inside environment from the outside environment; includes both an insulation layer and an air infiltration layer.
The air barrier that separates the conditioned space from the outside and from unconditioned spaces like attics and garages.
The geometrical surface of the points of an air jet, corresponding to a determined value of the measured air velocity. This velocity is generally called «terminal velocity».
Keywords:  sorrowful, omens, dream, cast, news
Envelopes seen in a dream, omens news of a sorrowful cast.
a shortcut to reshape an object retaining its original path structure, as perhaps what Mark Twain had said, "Get the facts first
Shape of the volume of a note over time.
is an electrical device or computer algorithm that changes an audio parameter by a specified amount over a specified time interval.
An envelope defines how certain parameters will change over time. For example the volume envelope, graphical display shows how it will vary volume during period envelope lasts.
the excursions that the peaks of a modulated carrier, make in time. The envelope of the carrier traces out the power or power density of the signal with respect to time.
The outline of a signal's highest and lowest points acquired over many displayed waveform repetitions.
Keywords:  synthesis, tool, common
a common synthesis tool
an object or hierarchy that is assigned as a skin to a set of deformers such as IK chains
Keywords:  perfect, holder, card, type
a perfect type of card holder
Keywords:  byte, error, extra, bits, transmitted
In communications, a unit of information consisting of 1 transmitted byte to which extra bits have been added for control and error checking.
Keywords:  commodity, standard
a very standard commodity
A Service Level Agreement’s total value, or overall budget for a service
Keywords:  bounding, box, objects, contains, one
a bounding box that contains one or more objects
Keywords:  follower
Envelope follower
Keywords:  identifier
CAN identifier.