Computer Concepts Eagle M2 Manuale utente
USER GUIDE
© Computer Concepts and Wild Vision 1994
No part of this publication may be reproduced or transmitted in any form or by
any means without the prior written permission of Computer Concepts or Wild
Vision. Such written permission must also be obtained before any part of this
publication is stored in any form in a retrieval system of any nature.
Manual issue 1.4
January 1994
Computer Concepts and Wild Vision have no direct control over the use to which
this product is put and therefore offer no warranty, implied or otherwise, relating
to its use for any purpose other than that for which it is intended.
The product described in this manual is the subject of continuous development
and, whilst all efforts are taken to ensure that the information given is correct,
neither Computer Concepts nor Wild Vision can accept any liability for any loss or
damage caused by the use of these programs or the information in this manual.
Please send any comments you have about this manual to:
Publications Dept., Computer Concepts Ltd.
Trademarks:
Eagle and
ColourCard
are trademarks of Wild Vision Ltd.
!TakeTwo, Audio Works, ScanLight Plus, and Impression are trademarks of
Computer Concepts Ltd.
Acorn, Replay, and
!ARMovie
are trademarks of Acorn Computers Ltd.
All other trademarks are acknowledged.
Eagle is a joint development between :-
Wild Vision Ltd. and Computer Concepts Ltd.
15 Witney Way Gaddesden Place
Boldon Business Park Hemel Hempstead
Boldon Colliery Hens
Tyne and Wear HP2 6EX
NE35 9PE
Tel 091 519 1455 Tel 0442 63933
Fax 091 519 1929 Fax 0442 231632
Acknowledgements
We would like to acknowledge the assistance of Acorn Computers Ltd. in the
implementation of the Acorn Replay movie capture application and M1DI module,
and in granting a licence to distribute the Replay applications and M1DI module.
Contents
About this manual
Typographic conventions
Mouse buttons
1. Introduction 1
About MultiMedia 1
The Eagle package 1
What Eagle can do... 2
Abbreviations 3
System requirements 3
Movie-making 3
Possible extras 4
The internal speaker 4
15-bit and 24-bit display 5
The applications suite 5
2. Installation 7
What you should have received 7
Installing the Eagle expansion card 7
Remove the computer's cover
Archimedes only 8
A5000 only 9
Expansion card positioning – Archimedes & A5000 9
Connecting the ribbon cable... 10
Fitting the expansion card
Archimedes & A5000 12
A3000 13
Initial testing (Archimedes, A3000 & A5000) 13
Copying the software 14
Updating !System 15
3. Getting started 17
Connecting a video input 17
Connecting an audio input 18
Connecting the audio output 18
Playback using the computer's internal speaker 19
Playback using external speakers 19
Connection to MIDI 20
4. Viewing and grabbing images
21
Viewing a live video image 21
Grabbing a still image 21
Grabbing a movie 22
Grabbing a movie soundtrack 24
Viewing movies 24
Playing only the soundtrack 24
5. TakeTwo
25
Live display window 26
Picture controls dialogue box 27
Grab choices dialogue box 30
6. Audio options
35
7. Acorn movie compression routines and RCompress
39
Acorn movie compression routines 39
!RCompress 40
8. If problems occur...
45
"System Resources cannot be found" 45
Please refer to 'Updating ABI' in the manual." 45
Podule not recognised 45
Live display is black 45
Live display is greyscale only 46
Cannot view 15bpp or 24bpp sprites 46
Cannot record sound 46
Sound output does not work 48
Sound playback and/or recording are punctuated by
bursts of noise 49
Sound recording / playback is of poor quality 50
Movie recording fails 50
9. Technical information
53
1. Eagle link positions 53
2. Stereo line-level socket: pin-out. 54
3. S-Video connector: pin-out. 54
4. Exploded movie format 55
ii
About this manual
This manual describes the key aspects of the Eagle MultiMedia
package: the expansion card itself, hardware connections and
peripherals, and its associated software. It describes in depth the use
of software applications which are provided exclusively with this
product. However, only the briefest details are given for `stand
alone' programs for which separate manuals exist. Information about
using these applications can be found in the relevant user guides as
listed in the section What you should have received.
It is assumed that you have a basic knowledge of the RISC OS
conventions and are familiar with standard applications. If this is
not the case, it is advised that you first familiarise with the use of
the computer by consulting the Welcome Guide supplied with it.
Typographic conventions
This manual uses these conventions:
Menu options are shown like this: Save image.
Dialogue box switches are shown like this: Monochrome.
Where you use the keyboard for control, the name of the key is
shown in italics. (For example, Return.)
Mouse buttons
We use the Acorn convention for the three mouse buttons:
the left-hand button is called Select,
the middle button is called Menu,
the right-hand button is called Adjust.
Where we say click on something but do not specify a mouse
button, use Select.
iii
i
v
1. Introduction
About MultiMedia
Taken literally, the term 'MultiMedia' implies the use of many
different kinds of communication media to convey a single message.
However in recent years the word has earned a more specific
meaning, namely the combination of a computer with video, audio
and the printed page, united for the purpose of adding colour and
depth to the information presentation process, with the help of a
computer.
MultiMedia is the communication style of the nineties. In education
and training, traditional learning material is brought to life, with
video and audio technology adding a new dimension. As a
promotional tool, the MultiMedia-based information system is a
powerful method of retaining the browser's interest; small wonder
that big-time retailers such as Rover cars are using this technology in
consumer marketing programmes. Or that large institutions such as
museums use MultiMedia stations to guide their visitors around
buildings. The beauty of MultiMedia is that while digitally controlled
(and therefore self-contained), it can be interactive, letting you
explore a subject freely, accessing supporting material, images, film
and sounds in your own time, and according to your own
preferences.
The Acorn RISC computer, with its multi-tasking desktop and
highly graphical user interface, is the ideal platform for MultiMedia
work. This is emphasised by the advent of CD-ROM to the Acorn
platform, and by the sheer quality of material which can be shown on
the Acorn desktop. Even the traditional 'barrier' of a fixed 256-colour
desktop palette was lifted with the appearance of the ColourCard
graphics accelerator card.
The Eagle package
Eagle provides multi-media capabilities for both audio and video (
still and moving images). You can use Eagle either as a standalone
package or in conjunction with other movie editing applications.
1
1. Introduction
What Eagle can do...
It can receive video signals from a wide variety of sources (from,
for example, a camcorder or VCR) and then:
• Display the moving image in a window on-screen. (You
can watch TV on your computer monitor.)
• Grab a single frame of the video.
• Record the moving image to disc for later replay to create a `
movie'. (You can save the image in raw, uncompressed
format or, if you have the Eidos extension software, in a
compressed format.)
When saving the movie, you can also save:
• the audio input associated with the video source,
• audio signals from an external source (such as a hi-fi
amplifier).
Eagle calls this the 'soundtrack'. (You can also save movies
without a soundtrack.)
You can play movies from disc, pausing and frame advancing as
required. Eagle is fully compatible with the Acorn Replay movie
format. (Eagle includes the Replay applications, licensed from
Acorn Computers Ltd.)
Using a different application, you can record sound samples from an
external source and manipulate them in a wide variety of ways. You
can save the samples to disc in any of several different
formats, some suitable for use on other types of computer.
Eagle provides a high-quality stereo sound output. Using this, you
can output sound samples to, for example, a hi-fi system.
Eagle also includes a MIDI interface. This lets you interface third
party software on the computer to MIDI-compatible peripherals
such as keyboards.
As with all new software, the best way to gain an appreciation of
the capabilities of these programs is to experiment. If you have any
problems, refer first to the troubleshooting sections of your
manuals. Remember that there are also separate ScanLight, Audio
Works and MIDI manuals.
2
1. Introduction
Please return your product registration card to ensure swift
technical support and eligibility for any future software upgrades.
Abbreviations
These abbreviations are used in this manual:
bpp bits-per-pixel – measures colour depth.
fps frames-per-second – measures the video frame rate.
System requirements
Eagle can be used with Acorn computers having standard, half-
width expansion slots. (These include the A300/A400 series
Archimedes, A540 and A5000 computers. The A3000 is also suitable
with certain limitations.) Eagle is
not suitable
for A3010, A3020,
A4000 or A4 portable computers.
If your computer meets these system requirements:
• RISC OS 3.1 or greater,
• at least 2 Megabytes of RAM (memory),
then you can use Eagle for:
• video image live display,
• capture of still video images in colour or monochrome,
• audio sample capture and playback through the stereo
connector on the Eagle,
• MID1 connection.
Outputting sound samples through Eagle requires an ARM3
processor. (ARM3 is standard on the A540 and A5000 computers
and available as an upgrade to other computers.) With a slower
ARM 2 processor, sound output is only available through the
computer's internal speaker. This gives lower-quality results.
Movie-making
The nature of digital video movies is such that their storage,
processing and playing back requires large amounts of memory,
both in terms of hard disc space and available RAM.
3
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