Prism Sound Lyra Manuel utilisateur

Lyra

Operation Manual

by Ian Dennis

This manual is also available as 'on-line help' from the

Orpheus Control Panel applet. You can access the on-line

help from the 'Help' button in the top right-hand corner of the

applet.

Table of Contents

Part 1 General information 2

Part 2 Introduction to Lyra 6

.................................................................................................................................61Features

.................................................................................................................................72System requirements

.................................................................................................................................83About this manual

Part 3 Quick start guides 10

.................................................................................................................................101 Quick start for Mac

.................................................................................................................................102Quick start for Windows

Part 4 Installation procedures 12

.................................................................................................................................121Mac installation

.................................................................................................................................142Windows installation

.................................................................................................................................183Operating multiple units

.................................................................................................................................194Software and firmware updates

Part 5 Lyra hardware 22

.................................................................................................................................221 Signal path architecture

....................................................................................................................................................... 22Analogue inputs

................................................................................................................................................ 23Overkiller

................................................................................................................................................ 23High-pass filter

................................................................................................................................................ 23MS matrix

....................................................................................................................................................... 23Digital inputs

................................................................................................................................................ 24Sample-rate converter

................................................................................................................................................ 24DI synchronization

....................................................................................................................................................... 24Analogue outputs

....................................................................................................................................................... 25Digital outputs

................................................................................................................................................ 25Sample-rate converter

................................................................................................................................................ 26Word-length

................................................................................................................................................ 26DO synchronization

....................................................................................................................................................... 26Output mixers and routing matrix

....................................................................................................................................................... 27Assignable level control

....................................................................................................................................................... 27Headphone outputs

....................................................................................................................................................... 27Metering system

.................................................................................................................................282Synchronization

.................................................................................................................................293 Front panel

.................................................................................................................................304 Rear panel

....................................................................................................................................................... 31Fuses and ratings

.................................................................................................................................315 Stand-alone operation

.................................................................................................................................316 Rack mounting

Part 6 Lyra software 34

.................................................................................................................................341Lyra Control Panel app

....................................................................................................................................................... 35Unit settings

....................................................................................................................................................... 37Inputs tab

....................................................................................................................................................... 38Outputs tab

....................................................................................................................................................... 39Mixer tabs

.................................................................................................................................402Lyra drivers

Part 7 Technical topics 42

.................................................................................................................................421Stability and latency

.................................................................................................................................432Clocking and jitter

.................................................................................................................................453 Dither and noise-shaping

.................................................................................................................................484 Analogue interconnections

.................................................................................................................................515 Digital interconnections

Part 8 Specifications 54

Index 60

General information

Part 1

1.2

Operation Manual

Revision 1.00Prism Sound Lyra

1General information

Manual revision history

Rev

Date

Author

Notes

1.00

8th January 2013

I.G.Dennis

Product Launch

Support contacts

Prism Media Products Limited

Prism Media Products Inc

The Old School

21 Pine Street

Stretham

Rockaway

Cambridge CB6 3LD

NJ 07866

USA

Telephone: +44 1353 648888

Telephone: +1 973 983 9577

Fax: +44 1353 648867

Fax: +1 973 983 9588

Email: [email protected]

Web: http://www.prismsound.com

Or contact your local Prism Sound distributor as detailed on the website.

WARNING!

TO PREVENT FIRE OR SHOCK HAZARD DO NOT EXPOSE THIS EQUIPMENT TO

RAIN OR MOISTURE. DO NOT REMOVE THE COVER. NO USER-SERVICEABLE

PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.

1.3

Operation Manual

Revision 1.00Prism Sound Lyra

Statements of conformity

This equipment has been tested and found to comply with the limits for a Class B digital device,

pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection

against interference in a residential area. This device generates and uses radio frequency energy

and, if not installed and used in accordance with the instructions, may cause interference to radio or

TV reception. If this unit does cause interference to radio or TV reception, please try to correct the

interference by one or more of the following measures:

a) Reorient or relocate the receiving antenna.

b) Increase the separation between the equipment and the receiving antenna.

c) Plug the equipment into an outlet on a different circuit from the receiver.

d) If necessary, consult your dealer or an experienced radio or TV technician.

CAUTION: Changes or modifications to this equipment not expressly approved by the manufacturer

could void the user's authority to operate this equipment.

THIS DIGITAL APPARATUS MEETS ALL CLASS B LIMITS FOR RADIO NOISE EMISSIONS AS

LAID DOWN IN THE RADIO INTERFERENCE REGULATIONS OF THE CANADIAN DEPARTMENT

OF COMMUNICATIONS.

CET APPAREIL NUMÉRIQUE RESPECTE TOUTES LES EXIGIENCES APPLICABLES AUX

APPAREILS NUMÉRIQUES DE CLASSE B SUR LE BROUILLAGE RADIOELECTRIQUE EDICTE

PAR LE MINISTERE DES COMMUNICATIONS DU CANADA.

Prism Media Products Ltd hereby declares that this equipment conforms to the following standards:

EN55103-1, environment category E4

EN55103-2, environment category E4

NOTE: The use of this equipment with non-shielded interface cabling is not recommended by the

manufacturer and may result in non-compliance with one or more of the above directives. All coaxial

connections should be made using a properly screened 75R cable with the screen connected to the

outer of the connector at both ends. All analogue XLR and jack connections should use screened

cable with the screen connected to pin 1 of the XLR connector, or the jack outer, at both ends.

Trademarks

SNS, Super Noise Shaping, Overkiller and CleverClox are trademarks of Prism Media Products Ltd.

Windows, XP and Vista are trademarks of Microsoft Corporation.

Mac, OS X, and Macbook are trademarks of Apple Computer Inc.

All trademarks acknowledged.

This manual may not be reproduced in whole or part, in any medium, without the written permission

of Prism Media Products Limited.

In accordance with our policy of continual development, features and specifications are subject to

change without notice.

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