Other types of lossy compressors, such as the linear predictive coding ( LPC ) used with speech, are source-based coders.

Time domain algorithms such as LPC also often have low latencies, hence their popularity in speech coding for telephony.

Linear predictive coding ( LPC ) is a tool used mostly in audio signal processing and speech processing for representing the spectral envelope of a digital signal of speech in compressed form, using the information of a linear predictive model.

LPC starts with the assumption that a speech signal is produced by a buzzer at the end of a tube ( voiced sounds ), with occasional added hissing and popping sounds ( sibilants and plosive sounds ).

LPC analyzes the speech signal by estimating the formants, removing their effects from the speech signal, and estimating the intensity and frequency of the remaining buzz.

LPC synthesizes the speech signal by reversing the process: use the buzz parameters and the residue to create a source signal, use the formants to create a filter ( which represents the tube ), and run the source through the filter, resulting in speech.

According to Robert M. Gray of Stanford University, the first ideas leading to LPC started in 1966 when S. Saito and F. Itakura of NTT described an approach to automatic phoneme discrimination that involved the first maximum likelihood approach to speech coding.

In 1969 Itakura and Saito introduced partial correlation, May Glen Culler proposed realtime speech encoding, and B. S. Atal presented an LPC speech coder at the Annual Meeting of the Acoustical Society of America.

In 1974 the first realtime two-way LPC packet speech communication was accomplished over the ARPANET at 3500 bit / s between Culler-Harrison and Lincoln Laboratories.

LPC is generally used for speech analysis and resynthesis.

LPC synthesis can be used to construct vocoders where musical instruments are used as excitation signal to the time-varying filter estimated from a singer's speech.

The Texas Instruments LPC Speech Chips are a series of speech synthesizer DSP ICs created by Texas Instruments beginning in 1978.

The TMC0280 / TMS5100 was the first self-contained LPC speech synthesizer IC ever made.

The LPC Bridge provides a data and control path to the Super I / O ( the normal attachment for the keyboard, mouse, parallel port, serial port, IR port, and floppy controller ) and FWH ( firmware hub which provides access to BIOS flash storage ).

* For messages longer than 256 bytes a shared memory section must be used to transfer data, which the ( A ) LPC service maps between the sending and receiving processes.

First the sender places data into the shared memory, and then sends a notification ( e. g. a small message, using the first method of ( A ) LPC ) to the receiving process pointing to the sent data in the shared memory section.

The Mud Institute ( TMI ) was an LPMud opened in February 1992 as a gathering place for people interested in developing LPMud and teaching LPC after it became clear that Lars Pensjö had lost interest in the project.

In 1971 realtime LPC using 16-bit LPC hardware was demonstrated by Philco-Ford ; four units were sold.

In 1973, according to Lincoln Laboratory informal history, the first realtime 2400 bit / s LPC was implemented by Ed Hofstetter.

A 10th-order LPC was used in the popular 1980's Speak & Spell educational toy.

Pike has its roots in LPC, which was a language developed for MUDs.

LPC's license did not allow use for commercial purposes, and so a new GPL implementation was written in 1994, called µLPC ( micro LPC ).

The NoHo Historic District was designated by the LPC in 1999 and expanded in 2008.

In 1980, some former members of the Ontario Libertarian Party ( Lisa Butler, former OLP chair Mary Lou Gutscher, Bill McDonald and Paul Wakfer past-president of the Libertarian Party of Canada ( LPC ) who had spent many months of his time and considerable money to get the LPC registered by running 50 federal candidates, yet who was then summarily expelled from the LPC ) all of whom left the current libertarian parties because of fundamental disagreements, founded the Unparty.

LPMud was innovative in its separation of the MUD infrastructure into a virtual machine ( known as the driver ) and a development framework written in the LPC programming language ( known as the mudlib ).

" The result was the creation of a new, C-based, object-oriented programming language, LPC, that made it simple for people with minimal programming skills to add elements like rooms, weapons, and monsters to a virtual world.

Genesis was created as the first implementation of the LPC language, in which the developer ( commonly known as a wizard within the MUD ) is able to create objects by using a language similar to the C programming language.

The name later caused some confusion since some thought the LPC did a dance called " liquid popping " but the name was chosen because many members did both liquid and popping.

The LPC was concerned that these newcomers to the dance did not have anyone teaching them.

Maope was the only LPC candidate to win a constituency, but the party won four other seats through proportional representation.

The Liberia Peace Council ( LPC ) was a rebel group that participated in the Liberian Civil War under the leadership of George Boley.

The first LPC camp was located in Mösli, Switzerland, 1949 and lasted from August to September.

Since 2010 the LPC tradition is renewed in Klinovice ) when the country was occupied by Russia which was a big challenge for camp and mostly for getting back home.

Quick LPC was introduced in version 3. 51 of Windows NT to make these calls faster.

* LPC – ( Light / Lamp Post Cache ) used in the description on where a cache may be hidden.

Modern motherboards do not have physical ISA expansion bus connectors any more, but the bus signals live on in the modern LPC bus for software compatibility.

LPC ( short for Lars Pensjö C ) is an object-oriented programming language derived from C and developed originally by Lars Pensjö to facilitate MUD building on LPMuds.

Features added in FluffOS that are not present in MudOS include available MXP output, UTF-8 capability, support for running on 64-bit architectures, IPv6 support, and ( optionally ) stricter type checking of variables in LPC code.

Two months after the film's premiere, RCA released the extended play single Elvis By Request – Flaming Star, catalogue LPC 128, which peaked at # 14 on the Billboard Hot 100.

However, one of the ways that IMC2 differs significantly from I3 is that it does not use so called mudmode connections, making it much easier to implement IMC2 on muds not written in LPC.

Around this time, the LPC put a video ( now available on YouTube ) of one of the members, Eric, liquid dancing on Napster.

The LCD sought to prevent the LPC from using his head as its symbol, but on December 6 the High Court ruled in favor of the LPC.

The programme can be seen as the equivalent of the Legal Practice Course ( LPC ) or the Bar Professional Training Course ( BPTC ) in England and Wales, which focuses heavily on practical issues, unlike a first degree in law.

In an LPMud, the mudlib consists of interpreted code written in the LPC language, which is interpreted on the fly by a driver.

LPC also aims to promote personal growth and responsibility amongst the campers and counsellors through creating a communal environment that depends on active participation.

The Local Procedure Call ( LPC, often also referred to as Lightweight Procedure Call or Local Inter-Process Communication ) is an internal, undocumented inter-process communication facility provided by the Microsoft Windows NT kernel for lightweight IPC between processes on the same computer.

( A ) LPC is implemented using kernel " port " objects, which are securable ( with ACLs, allowing e. g. only specific SIDs to use them ) and allow identification of the process on the other side of the connection.

As mentioned, RPC can use ( A ) LPC as a transport when the client and server are both on the same machine.

Many services that are designed to communicate only on the local computer use ( A ) LPC as the only transport through RPC.

9, 337 students enrolled on the LPC in 2008 / 09.

Taking the LPC results for many students in massive debt and no return on investment whatsoever.

* Reports on the LPC Providers

* Qed Law-Information on LPC exam results and pass rates

It was also announced in April 2012 that the College has teamed up with international law firm CMS Cameron McKenna to launch an International Legal Practice Course, the first LPC to focus on the global legal services market.