SCOOPY Mono/Stereo Portable CODEC ISDN / POTS / GSM / USB User Manual AETA AUDIO SYSTEMS 18-22, avenue Edouard Herriot – 92350 Le Plessis Robinson – FRANCE Tel. +33 141 361 200 – Fax +33 141 361 269 Web : http://www.aeta-audio.com 55 000 026 – Ed.
Table of contents 1. 2. SCOOPY – Easy quick Start.............................................1 Introduction ........................................................................2 2.1. Functions ..............................................................................................2 2.2. Applications .........................................................................................3 3. Setting up the SCOOPY ....................................................4 3.1. Power.................
9. POTS Information ........................................................... 35 9.1. Factory default configuration............................................................. 35 9.2. POTS modes ...................................................................................... 36 9.3. Network parameters ........................................................................... 36 9.4. Error protection.................................................................................. 37 10.
1. SCOOPY – Easy quick Start 1. Connect the modem cable from the ANALOG socket to the wall phone socket Always use this cable (a modem cable is wired differently from a telephone cable) or connect a RJ45 cable from the ISDN socket to the ISDN wall point. For GSM mode you have just to connect an antenna. 2. Connect the power cord and clip the cable under the small plastic clip 3. Plug in audio connections (microphone and headphones). 4. Hold the ON 5.
2. Introduction 2.1. Functions The Scoopy is designed to enable radio broadcasters to conduct high quality live two-way remote broadcasts, or two way commentaries with return cue, via ISDN, POTS lines or GSM.1 2.1.1. Algorithms The Scoopy contains a stereo* / mono audio compressor/de-compressor (Codec) that performs all necessary ISDN and POTS algorithms. In ISDN mode, the user can select one of four operational audio standards: 1. Phone mode (G.711, 3,5kHz) 2. Live speech ( G.722, 7kHz, low delay ) 3.
2.1.3. Outputs Two headphone sets can simultaneously be connected to the unit. Each headphone has its own volume and local/cue adjustment to mix the received and sent signals. A separate XLR line output allows connecting the return audio to a Pre-Amplifier or to other audio system. The headphone output 2 can sent on this line output by menu. 2.1.4. Transmission Using an ISDN line, transmission bit-rate is either 64kbps or 128kbps2.
3. Setting up the SCOOPY 3.1. Power The unit can be powered by 6 type "C" or LR14 Alkaline cells. Heavy-duty Alkaline cells or rechargeable NiCd or NiMH cells can be used. Caution: OBSERVE THE CORRECT POLARITY WHEN INSERTING THE BATTERIES. A new set of batteries will last approximately 1 hour 30 in POTS mode. In ISDN mode, the autonomy depends on the algorithm chosen.
3.2. Connection to the ISDN Connect the RJ45 connector of the ISDN cable into the socket marked "ISDN" on the rear panel and plug the other end of the cable into the ISDN wall socket. The ISDN modem of the Scoopy is a S/T or a U interface depending on the unit type. You can select the correct ISDN protocol for a given country from the menu. Given the various kinds of ISDN protocols used in different countries or inside PBXs, ISDN compatibility problems may occur.
PBX and PABX applications The internal modem of the Scoopy is only approved for use as an extension instrument to compatible PBXs. Contact AETA AUDIO S.A. or your local dealer for an up-to-date list of PBXs with which the internal modem is compatible. AETA AUDIO S.A can not guarantee that the Scoopy will operate correctly under all possible conditions of connections to compatible PBXs. Any cases of difficulty should be referred in the first instance to AETA AUDIO S.A. 3.4. Connection to the GSM 3.4.1.
4. SCOOPY structure 4.1. Front view The user interface consists of a keypad and LCD display. Figure 1 - Front panel 1 - Headphone 1 : Local/Cue and volume adjustment 2 – Input 1 potentiometer 3 – Input 2 potentiometer 4 - Headphone 2 : Local/Cue and volume adjustment 5 – Audio level LED-Bar & Status LED’s 6 - LCD display 8 – Switch ON/OFF 9 - “red phone” : hang up 10 - “green phone” : call key 11 – Input 1enable indicator 12 – Input 2 enable indicator 13 – Function keys 7 – Keypad 55 000 026 – Ed.
4.2. Rear view 1 – V24 serial remote control 2 – POTS RJ11 Jack 3 – ISDN RJ45 Jack 4 – External DC Jack Figure 2 – Rear panel 4.3. Scoopy status There are 23 LED’s on the front panel providing the following information: - Info (2 yellow LED’s): Information (Future use). - Alarm (red) : When “on”, indicates a network problem or no audio synchronization - Dec (green): When "on" indicates that a successful connection exists and the Scoopy is decoding the POTS or ISDN signal.
- 2 (red) : When “on”, input 2 is enable ( open ) - Lim/comp (green/red): When green “on”, the limiter or the compressor is on stand by. When red “on”, the limiter or the compressor is functioning. - Level meter: 11 LED’s (scale –20 to + 5 VU). - OVLD (red): Mixed audio overload. 4.4. General synoptic diagram Analogue inputs board DSP board Interfaces board Microprocessor board Power board Potentiometers board LCD Analogue outputs board Figure 3 – Scoopy synoptic 55 000 026 – Ed.
5. Audio section 5.1. Encoding and decoding Scoopy includes a wide range of coding algorithms. First, one can select among algorithms compliant with ISO and ITU-T1 recommendations: • G711; • ITU-T G722 (mono at 64 kbit/s); • MPEG Audio Layer II at 48, 32, 24 or 16 kHz, with programmable channel mode and bit rate ; MPEG Audio and G722 algorithms comply with ITU-T J52 recommendation for ISDN transmission.
5.1.2. Notes about G722 With G722 coding, tree synchronization modes are available: • “Statistical recovery” byte synchronization method (alias SRT) ; • H221 synchronization; in this case, 1.6 kbit/s from the compressed data are used for this. • H221 synchronization and H242 protocol. H221 synchronization is highly recommended when possible, as it features higher reliability and faster recovery time, while degradation (because of the bit rate used for framing) is minimal.
5.1.4. Notes about TDAC As an option, the codec can also include the TDAC algorithm. TDAC is for Time Domain Aliasing Cancellation; this is a transform coding based on an MDCT (Modified Discrete Cosine Transform), encoding a 15 kHz bandwidth mono signal at a 64 kbit/s bit rate.
5.2. Audio Interfaces 5.2.1. Mixer Inputs Figure 4 – Left panel “inputs” The mixer features two symmetrical microphone/line inputs with microphone powering, and an output with limiter / compressor and the line input. Figure 5 – mic/line input interface The following elements are available for each mic/line input : - Input connector: female XLR; - Pad switch ( for the microphone input, the input gain is adjustable by 4 steps of 20 dB ) - Microphone power selection switches Dyn.
Phantom: phantom power supply ( 48V or 12V switch configuration ) T12: “Tonadder” ( 12V ) “optional” Remark: Contact AETA AUDIO S.A. or your local dealer to enable T12 option. On each channel can be applied a selectable 12 dB/octave high-pass filter (Off / HP ) by menu configuration.1 For each input channels there are a mute enable by menu. The gain of each input can be individually adjusted using the corresponding front panel potentiometer ( Figure 1 - Front panel, Ref. 2 & 3 ) .
Format Connector Microphone powering Maximum input level with pad Input stage sensitivity adjustment Input impedance CMRR symmetrical 3-pin female XLR socket Phantom 48V or 12V, optional Tonadder 12V +21 dBu +0 to +60 dB by 4 steps of 20dB 10 kΩ >80dB @ 1kHz Table 1 – Input interface 5.2.2. Outputs Interface On the right panel you have the line input connector and the line output connector. The input line signal is mixed with the mic/line inputs after the limiter / compressor, see figure 8.
Input stage sensitivity adjustment Input impedance CMRR Mute,-12 to +12 dB by steps of 1dB ( software selection ) 10 kΩ >80dB @ 1kHz The audio signal output is available on the two headphones and on the line level output. Local audio from the inputs can be mixed with the return audio signal on each headphone. The return audio signal is present in the headphone mix via the Local / Cue Mix Balance potentiometer on the front. (See Page 7: Figure 1 – Front panel, ref. 1 & 4).
Local (Mixed A/D input ) Headphone 1 Cue (Expand DSP ) D/A Headphone 2 Output line µ.c µ.c µ.c : micropressor command Figure 8 – Analog outputs 5.2.3. Stereo mode In ISDN mode, Scoopy can be configured in stereo. In stereo mode, the input 1 is the left channel and the input 2 is the right channel. This mode can be enabled by menu, see menu 3 – audio part. Rem.: - The limiter / compressor and faders (input adjustment on front panel) are disabled in this mode.
Mic/line Input 1 Dyn/Ph./T12* 0..60dB OFF/HP Mike pwr PAD 0/-10dB µ.c µ.c Left A/D Right 18 bits 48KHz 0..60dB Mic/line Input 2 Dyn/Ph./T12* PAD Compress DSP OFF/HP Mike pwr 0/-10dB µ.c µ.c Figure 9 – Analog inputs Regarding the monitoring, send and receive stereo signal is only available on the headphone 1. On the others output, only left signal (receive or send) is available. The bargraph display the higher peek of both channels. 5.3.
B) In ISDN mode Data rate 128 kbit/s 128 kbit/s 128 kbit/s 128 kbit/s 128 kbit/s 64 kbit/s 64 kbit/s 64 kbit/s 64 kbit/s 64 kbit/s 64 kbit/s 64 kbit/s Sampling frequency 48kHz 32kHz 24kHz 16kHz 32kHz 48kHz 32kHz 24kHz 16kHz 32kHZ 16kHz 16kHz Bandwidth Delay 20Hz - 20kHz 20Hz – 15kHz 20Hz – 10.4 kHz 20Hz – 7.2 kHz 20Hz – 15 kHz 20Hz – 20kHz 20Hz – 13.4kHz 20Hz – 10.4 kHz 20Hz – 7.2 kHz 20Hz – 15kHz 20Hz - 7kHz 300Hz – 3.
5.4. Audio monitoring The 12 LED's labeled “level” on the front panel of the Scoopy indicates the peak level of the mixed audio signal. The level display reference (0 dB) is 12 dB below the clipping level. 20 SCOOPY - User manual This document is the property of AETA AUDIO SYSTEMS and can not be duplicated without authorisation 55 000 026 – Ed.
6. SCOOPY operation: How it works 6.1. Introduction Incoming audio into the Scoopy is digitized by a state-of-the-art A/D converter and processed through the Scoopy'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 Scoopy or another compatible ISDN or POTS 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.
“Red phone” key to on hook a call. 6.3. Scoopy MENU 1) Main menu TOOLS SETUP To scroll in the sub-menus use the keys under the word If a second sub-menu exists, you can enter by pressing again the key under the word At any time you can return to the main menu by pressing the ESC key. Note: the symbol between “TOOLS” and “SETUP” means : “DIRECTORY” If you press “green phone” key, you access to the 5 last called numbers. If you enter a letter, you access to the remote directory.
This document is the property of AETA AUDIO SYSTEMS and can not be duplicated without authorisation 55 000 026 – Ed. G SCOOPY - User manual 23 March 2006 BACKLIGHT Relays(Keys) OK INCLUDE PROFILES Yes No Esc On MISC Backlight Off Net Menu 3 SETUP ISDN Audio Cod English OK English French Or KEYBOARD LOCK Off On MISC Keyboard Lock USER ACCESS Full Reduced MAINTENANCE User Access MISC Language ABOUT V3.04 Dual 20K V3.01 Dual 20K SW SN : 860 O : SGW 2.
This document is the property of AETA AUDIO SYSTEMS and can not be duplicated without authorisation 24 SCOOPY - User manual 55 000 026 – Ed.
This document is the property of AETA AUDIO SYSTEMS and can not be duplicated without authorisation 55 000 026 – Ed.
This document is the property of AETA AUDIO SYSTEMS and can not be duplicated without authorisation 26 SCOOPY - User manual 55 000 026 – Ed.
This document is the property of AETA AUDIO SYSTEMS and can not be duplicated without authorisation 55 000 026 – Ed.
7. How to Set-Up Profiles on the Scoopy You can access and edit memory locations and Profiles directly from the front panel keypad and menus of the Scoopy. The Scoopy has the ability to allow you to pre-program the 100 Profile locations. 7.1. What is a profile? A profile is a non-volatile, pre-programmed memory location stored within the Scoopy which functions very similar to the auto dial memory locations on an average telephone.
- “Edit” for looking each elements of the profile. - “New” for creating a new profile. “Load” With the left and right extended display key, you can scroll the remote profiles. If you enter a letter on the keypad, the profile list scroll to the profile whose the name begin with this letter. With the center extended display key, you scroll each profile items. For calling with the displayed profile, you have just to press the “green phone” key. For loading in memory the profiles, press the “OK” key.
Now, Scoopy asks the user to enter one or two numbers (depending on algorithm configuration). If you don’t enter numbers, when you will make a call with this profile, Scoopy will ask you to enter the numbers. 7.2.2. How to manage local setups From the Main Function Menu, select “DIRECTORY” symbol, and press the key under it. After having selected “LOCAL” choice, you can select different actions: - “Load” for loading in memory a local setup. - “Save as” for creating a new local setup.
8. Connecting 2 SCOOPY Note: The following is valid for both POTS and ISDN mode. Warning: In ISDN mode with some PBX’s, you must enter your local number and your SPID number prior making a call. 8.1. Initiating a call There are 3 ways to initiate a call: Dialing with a profile Direct Dialing Re-dialing the previous number. 8.1.1. Dialing Using a Profile Number From the Main Function Menu, select “DIRECTORY” symbol, and press the key under it.
Note: In the case that you have 2 numbers, if you don’t enter the second number, we call twice the first number. A message to indicate that the call is in progress is displayed on the screen. Note: - The number length is limited to 23 digits and may be displayed on 2 lines. - Insert a “*” between number and sub-number in ISDN mode. - Insert a “*” for wait in POTS mode 8.1.3.
8.2. Disconnecting a call To end a call, press the "red phone" key. "Wait..." is displayed, after awhile, the Scoopy is ready for the next call. The main menu appears on the screen. 8.3. Auto Answering As soon as the "Power on Initialization" phase is completed, the Scoopy is ready to receive an ISDN call or a POTS call. You have just to adjust the levels in such a way that the audio level green and yellow LED's indicate a normal operating range.
From the Main Function Menu, go to “SETUP”, “NET”,”PARAM”. Use the right arrow key to scroll "Address" screen. Press the center key to enter in address configuration Note: You should enter SPID 1 and LDN 1 local number at first Generally, the LDN is the 4 last digits of the SPID number. - 34 SCOOPY - User manual This document is the property of AETA AUDIO SYSTEMS and can not be duplicated without authorisation 55 000 026 – Ed.
9. POTS Information 9.1. Factory default configuration The Scoopy's factory-set default configuration is suitable for most Scoopy transmission applications and are reloaded by the selected function: “TOOLS”, “Misc”, ”General reset”.
9.2. POTS modes 9.2.1. Phone / Codec Mode The menu «ANALOG MODE» selects the telephone mode or the codec mode. If you select Hybrid parameter, you select the phone mode. The change of the initial mode can’t be done during the communication. When the high-speed connection is broken the Scoopy doesn't fall back to the regular POTS mode (3.4 kHz). The voice communication is interrupted and a new call has to be made. 9.3. Network parameters 9.3.1.
b) When the speed function is set on "Fixed" at ONE of the both Scoopy unit, the 2 modems will be allowed to negotiate at only the lowest speed of the two max speeds selected. They will neither "fall forward" nor "fall back". If this select speed is too high for the possibility of one of the local network capacity, the modem will "NOT CONNECT" and a lower speed has to be selected by the user to obtain a solid connection at a reliable data rate.
Protected 0 (Unprotected) is set by default (Factory Configuration) • Is compatible with all Scoopy units. • Keep the smallest transmission delay (coding: decoding) of 88 ms at 24Kbits. Protected 1 Ought to be selected manually and recovers errors of 100 ms. Protected 2 Ought to be selected manually and recovers errors of 250 ms. Delay: Protection 24K \ Data rate 21.6K 19.2K 16.8K 14.4K 12K Coding Test P0 88ms 90ms 105ms 114ms 131ms 138ms 55.
10. USB function How to enable USB function? - USB Audio can be enabling in Setup-Audio menu. In Audio I/F ( Audio Interface ) mode, the scoopy has the same functionality as PC sound card. In normal mode, the PC is the fourth input for the mixer and the PC can record mixed signal and remote audio signal when you are connected on mono over a network. ( See next schematics for more details). Is it possible to use the USB interface in stereo? - Yes, if you have the stereo option in your scoopy.
Normal mode - Mono audio routing Mic / Line 1 Ch. p rocessing Mic / Line 2 Ch. p rocessing Audio Mixer ENCODER DECODER Receive Se nd Line In Network I/F POTS ISDN ... Bargraph 1 2 Scoopy Line Out USB In R L USB Out USB link Out In PC 40 SCOOPY - User manual This document is the property of AETA AUDIO SYSTEMS and can not be duplicated without authorisation 55 000 026 – Ed.
“ Audio Interface “ mode Mic / Line 1 Ch . p rocessing Mic / Line 2 Ch . p rocessing Audio Mixer L R Σ ENCODER Receive Send Line In Network I/F DECODER POTS IS DN ... Bargraph M 1 L Scoopy 2 L Line Out M M USB In USB Out USB link Out M = mono summing In PC 55 000 026 – Ed.
Normal mode - Stereo audio routing Mic / Line 1 Ch. proce ssing Mic / Line 2 Ch. proce ssing Aud io Mixer L ENCODER R DECODER S end Re cei ve Line In Network I/ F M POTS ISDN ... Bargra ph 1 L Scoopy 2 L Line Out M M USB In USB Out USB link Out M = mon o summing In PC 42 SCOOPY - User manual This document is the property of AETA AUDIO SYSTEMS and can not be duplicated without authorisation 55 000 026 – Ed.
11. Troubleshooting Power supply failures: If running on batteries, check that batteries have been inserted properly. Check the “Battery” Green LED indicator on the front panel. The green LED indicates that the battery level is higher than 20%. When the battery LED goes “off”, the remaining autonomy of the Scoopy is 15 minutes. A set of 6 new batteries will last approximately 1 hour 30 communication in normal operating conditions. Note: Replace the old batteries before each new broadcast.
Connection In POTS mode To test your POTS line, you may connect a normal phone to the wall connector instead of the Scoopy unit and call a normal phone number. Check for proper POTS line settings: Dialing method, " Pulse/Tone", dial tone "Detect/Undetected". Check proper setting if going through a PBX ( you may need to dial to get an outside line, Ex 9* ). If the Scoopy disconnects while on-line, check for loose connections between the Scoopy and the telephone connection.
12. Tests 12.1. Audio section testing 1- Analog section test a) Connect an audio signal to one of the audio inputs. That signal is available on the headphones (Potentiometer turns that feedback feature off when fully counter-clockwise). b) Select the menu < TOOLS > , < MAINTENANCE > , < Test > : AD/DA Loop. The test is OK if you get the audio signal either on the headphones, or Aux. Out.
12.2. Network test These allow checking the network and the remote codec. 1- The unit can be configured to loop back to the network the received data. Select the main menu < TOOLS > , < MAINTENANCE > , < Test > : Loop 2 Network. The loop is enabled as soon as the unit is connected. 2- The unit can be configured to loop back to the network the sent data. Select the main menu < TOOLS > , < MAINTENANCE > , < Test > : Loop 3 codec. The loop is enabled as soon as the unit is connected.
13. ISDN modem information 13.1. ISDN Protocols ISDN modem supports worldwide ISDN signaling (CCITT I.430, Q.921, Q.
01 (1) unallocated (unassigned) number 02 (2) no route to specified transit network 03 (3) no route to destination 06 (6) channel unacceptable 07 (8) call awarded and being delivered in an established channel 10 (16) normal call clearing 11 (17) user busy 12 (18) no user responding 13 (19) no answer from user (user alerted) 15 (21) call rejected 16 (22) number changed 1A (26) non-selected user clearing 1B (27) destination out of order 1C (28) invalid number format 1D (29) facili
41 (65) bearer capability not implemented 42 (66) channel type not implemented 45 (69) requested facility not implemented 46 (70) only restricted digital information bearer capability is available 4F (79) service or option not implemented, unspecified 51 (81) invalid call reference value 52 (82) identified channel does not exist 53 (83) a suspended call exists, but this call identity does not 54 (84) call identity in use 55 (85) no call suspended 56 (86) call having the requested call i
14. How to open a SCOOPY ready for servicing Tools required: Philips Screw Driver (medium-sized) The Scoopy will be now separated into three Sections: 1) The rear metal panel 2) The bonnet 3) The casing lid Steps : - Switch to off Scoopy Remove the external mains power cable and batteries Undo the two screws at the back.
15. Connectors layout 15.1. Remote Connector This interface uses a 9-pin female Sub-D connector on the rear panel. This is a V24/RS-232 type interface with only Tx and Rx signals (no flow control). The following table indicates its pin out (DCE type pin out) Pin 2 3 7 8 5 Description TX , To the PC RX, From the PC CTS, From the PC RTS , To the PC Signal ground 15.2. POTS Interface The telephone network connection on Scoopy is a RJ 11 connector.
15.3. ISDN Interface Network The ISDN connector is a RJ45 – 4 wires into 8 wires. S0/T0 Network: Pin 1 2 3 4 5 6 7 8 Description N.C. N.C. TX A, To the network RX A, From the network RX B, From the network TX B, To the network N.C. N.C. Pin 1 2 3 4 5 6 7 8 N.C. N.C. N.C. RING TIP N.C. N.C. N.C. U0 NETWORK: Description 15.4. Environment Operating temp. Range: Humidity: Storage temp.
