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Speech compression using Linear Predictive Coding

version (289 KB) by Hamza Kadir
A lossy speech compression algorithm.


Updated 29 Jan 2007

No License

LPC is the oldest and the most basic of modern speech coders. Its a lossy scheme. Playback quality isn't preserved in the process but it can be used in low bit-rate systems.

Cite As

Hamza Kadir (2021). Speech compression using Linear Predictive Coding (, MATLAB Central File Exchange. Retrieved .

Comments and Ratings (40)

erizka banuwati

thank you so much kadir and friends. because all of you. i can learn alot. XOXO

Zaichao Sheng

It is AWSOME! Thanks a lot Kadir

aji swasono

Hello Hamzah Kadir..What literate book do you used.

Shifa Ibrahim

it is a good trial, thank you. but how can we calculate the bitrate before and after the copression?

Dealitha Winata

wafa derouaz

Awsome! thank you!

neetu singh

Jegathrachahan CM

Jegathrachahan CM


Jegathrachahan CM

Rekha Subramanian

thank you!!


amel hdidene

I can not find the PROGRAM PAGE

amel hdidene

I have many faults how to fix

amel hdidene

I do not have matlab 7 R14. I matlab R2009b is that I can work on this version



kazem gholami

thanks. very good

naveen pillay

how to download the code???

aya ahmed

I need LPC code If somebody help me

nagaraja b

thank u

Venkata krishna

Hello friends i am using this code i don't know how to find the out put wave file bit rate after compression. I tried using wav write but its giving same size.



Hossain Al Mamun

Very nice

Hossain Al Mamun

kundan raj

ya it's good but need some Improvement

vivek kumar

Nice works. It'll help me alot to complete my thesis on LPC

suresh chandran

It's really good , infact i'm searching for a good matlab code for speech compression .your code came as a handy .

Md. Shah Jalal

Nice works. It'll help me alot to complete my thesis on LPC using RLS algorithm.

kunu patro

Aslan Hejazi

i think its good. but i must check it. Thanks

Georgios Sirkakis

Nice work.... Thanks for the code

Theodore Kalamotousakis

A pretty nice example. Thanks for the code

mem joyo

i think its good n useful in my thesis :)

Fayaz Bangash

it is of great help thanks alot

tang feng


Network KILLER

Sagol dostum bakalim ben neler yapabilecegim. :)

david morgan


Usman Siddique

Raheema Thaslim

We also doing the same project.ur ideas r good .do u help us.

Hamza Kadir

Above codes are a part of a final yr thesis of students of EEE dept of IUT, OIC. Project: about modern speech coders. Project mates: Hamza Kadir, Nafis Kabir, Saiful Islam Tanmoy. Author of above codes: Hamza Kadir (, contact me if you need anything).

MATLAB Release Compatibility
Created with R14
Compatible with any release
Platform Compatibility
Windows macOS Linux

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