Hybrid Dynamics Processor

Group P14345

Jeffrey AuclairBryan Beatrez Michael FerryWilliam Sender

Agenda• Introduce Team

• Project Background

• Problem Statement & Deliverables

• Use Scenarios

• Customer & Engineering Requirements

• Project Plan

• Risks

• Questions

The Team

Team Member Role

William Sender Team Leader

Michael Ferry Electrical Engineer

Bryan Beatrez Electrical Engineer

Jeffrey Auclair Electrical Engineer

Current State - Hardware• High Audio Quality

• Quiet

• Analog

• Widely Adopted

• Limited Controls

• Poor Recallability

• High Cost

Current State - Software• Extremely Flexible Controls

• Easy to Save and Recall Settings

• Digital

• Requires Additional Hardware (Computer)

• Latent

• Can Produce Conversion Errors

• Moderate Cost

What is a Dynamics Processor?

A dynamics processor allows users to alter the dynamics of a source signal.

A compressor, a type of dynamics processor, will make loud sounds soft and soft sounds loud.

Problem StatementThe Hybrid Audio Processor is device that allows audio professionals to control the amplitude profile of various source audio signals, most notably audio sources used in Motion Picture Pre-Show. An amplitude profile influences the way humans perceive sound. We often use words like ‘punchy’, ‘loud’, or ‘full’ when describing the amplitude profile. Being able to control the amplitude profile is very useful. It allows for the user to create interesting, dynamic sounds that please listeners, as well as provide protection for downstream devices.

Problem StatementCurrent dynamics processors on the market are high cost and lack some flexibility. This device would allow for advanced control while maintaining ultimate high audio fidelity. It would also be intuitive with familiar, industry standard controls. The device would also have user savable settings as well as try to achieve a lower cost than comparable units. Current professional units have a variety of design trade-offs that do not provide the optimal user experience that is described above.

Problem StatementThe goal of this project is identify the needs of Motion Picture Pre-Show industry and develop a product that fits their needs, while maintaining the familiar attributes of common dynamics processors.

Deliverables• a functioning prototype

• simulation results verifying proper functionality

• documentation with board schematics and board artwork

• source code and libraries used

Use ScenariosManual Mode - This mode of operation will allow for user to manually manipulate the the threshold, ratio, attack and release settings for maximum control.

Use ScenariosAutomatic Mode - The goal of this mode is to provide automatic gain leveling with minimal interaction from the user.

Customer Requirements

Engineering Requirements

Tracability Matrix

Schedule

Risks management Risks

-Electric shock

-Damaging other devices

-Device failure

-Elemental circumstances

Methods of Mitigation

- Fail safe circuitry

- Software detection

-Proper Grounding

Questions