Linux Audio Mangler Project

Design Presentation• Yu Chong

• Hector Urtubia• Tony Zuliani

Introduction

• Why did we choose an audio editor as our project?

• Why did we choose to use Linux for development purposes?

• Why did we choose GTK+ as our windowing toolkit?

Overview (What is LAMP?)

• A program used to edit audio files of various formats

• Features the ability to dynamically load filters and sound generation libraries

• Intuitive, graphical user interface• Open source

Demonstration

Project Breakdown

Plugin

AudioIO Sound Driver

Utility

GUI

Audio Input/Output Module

• Interfaces with other libraries• Currently supported file formats:

WAV, AIFF, AU• Extendable design

Plugin Module

• LADSPA overview• Plugin interface

– Calls LADSPA plugins directly• Plugin utility

– Analyzes the system for available plugins

• Plugin GUI– Generates a graphical interface to the

available plugins

Sound Driver Module

• Interfaces with the operating system sound API

• Basic, hardware-level functionality

Utility Module

• Provides the GUI with an abstract interface to the lower-level modules– File management– Edit functions– Application of plugins– Playing and recording of audio data

GUI Module

• Top level module• Handles most user interaction• Interfaces with other modules

– Utility module– Plugin module

• Visual display of audio file data to the user

Project Difficulties

• Interaction of the different modules• Learning the APIs for the different

libraries we used• Efficient management of audio data• Graphical interaction with audio file

data• Personal conflicts

Delegation of Responsibility

• Yu– Sound driver module– Utility module

• Hector– Audio input/output module– Plugin module

• Tony– GUI module

Project Management

• CVS (concurrent versioning system)– source code management

• Coding standards• Project web page and mailing lists

provided by sourceforge.net– http://lamp-project.sourceforge.net

• Weekly meetings (Sunday, Wednesday)

Project Status

0 20 40 60 80 100

% Complete

Mo

du

les

Current Status

GUI

Utility

Plugin

Audio IO

Sound Driver

Questions and Comments?

LAMP home pagehttp://lamp-project.sourceforge.net