User manual

55 000 033 – Ed. D SCOOP STUDIO - User manual 15
This document is the property of AETA AUDIO SYSTEMS and can not be duplicated without authorisation March 2006
6. SCOOP STUDIO OPERATION: How it works.
6.1. Introduction
Incoming audio into the Scoop Studio is digitized by a state-of-the-art A/D converter and
processed through the Scoop Studio's codec. The data is then sent via the internal ISDN
or POTS synchronous modem to the telephone network ( ISDN or POTS ) to a remote
Scoop Studio or another compatible ISDN Audio Codec. Operating with a very fast
DSP, the codec runs an algorithm modeling the digital audio signal, in order to reduce
the digitized audio data rate.
At the other end of the telephone network, the answering Scoop Studio reconstructs the
original audio signal with very little loss or induced artefacts and at an extremely low
audio delay time.
6.2. User interface
The user interface consists of a lexan matrix keypad and a LCD display. The keypad has
two sections.
- The first section is a 4x3 matrix including the numbers from 0 to 9,“*”, “#”.
Some keys have many functions :
2, 3, 4, 5, 6, 7, 8, 9, 0: for accessing to letters display on the key, press the key
several times.
Note : Space character is available on the “1” key.
- The second section is the Extended Keypad functions under the display.
There are 3 function keys not labeled. The key function depends of the menu, the
function label appears over the key on the second line of the display
- The third section is the special Keypad functions.
“OK” key to validate a choice.
“Esc” key to escape from a menu.
“Green phone” key to make a call.
“Red phone” key to on hook a call.