Vortex-media VTX 1000 Manuale Utente

Interfacing to the SoundStation VTX 1000TM with Vortex® Devices Application Note Polycom Installed Voice Business Group September 2004

NARROWBAND VOICE VIA VORTEX HYBRID AND WIDEBAND VOICE THROUGH SOUNDSTATION VTX 1000 Here, a local talker uses a Vortex device, a Vortex Phone Hybrid,

APPENDIX D: VORTEX OUTPUT WIRING CABLE DRAWING 1: VORTEX OUTPUT TO BALANCED INPUT The above diagram illustrates the use of an XLR connector.

APPENDIX E: VORTEX INTERNAL AMPLIFIER WIRING TWO 8 OHM LOUDSPEAKERS CONNECTED IN PARALLEL Here, two loudspeakers labeled R1 and R2 are connected

THREE 8 OHM LOUDSPEAKERS CONNECTED IN PARALLEL Here, three loudspeakers labeled R1, R2, and R3 are connected in parallel to Output L. The total res

TECHNICAL SUPPORT For support on the Vortex product line, call toll-free (USA/Canada) 888-248-4143, then select option 1, then option 3. For exclus

SYSTEM SETUP DIRECTIONS Here is a step-by-step list of directions that one should follow in setting up a conference room to work with a SoundStatio

1.) CONNECTING A MICROPHONE TO A VORTEX DEVICE OVERVIEW DRAWING This drawing illustrates 1 tabletop microphone that is connected to Mic / Line Inp

PHYSICAL CONNECTIONS We use terminal blocks to make the audio connections to the printed circuit board. We use 3.5 mm pitch plugs. Looking left to

If the cable that comes with the microphone is long enough to reach the Vortex device, you may cut off the male XLR connector and use wire strippers t

2.) CONNECTING A LOUDSPEAKER TO A VORTEX DEVICE There are two ways to connect a loudspeaker (or multiple loudspeakers) to a Vortex device: Via an

EXTERNAL AMPLIFIER Here, one of the line-level outputs of a Vortex EF2241 is sent to an amplifier to power a group of loudspeakers. EXTERNAL AMP

"unbalanced". The signal conducting part of the connector is called "tip" and the ground line is called "shield". If

3.) CONNECTING THE SOUNDSTATION VTX 1000 TO A VORTEX DEVICE In order to send and receive audio to the SoundStation VTX 1000 Interface Module, you n

INPUT TO INTERFACE MODULE FROM OUTPUT OF VORTEX DEVICE Connect the Positive conductor of the Vortex device to the Tip of the RCA connector and the

TABLE OF CONTENTS TABLE OF CONTENTS...

A subwoofer can be used with the SoundStation VTX 1000 to enhance the low frequency response when connected to another party via wideband mode. The u

1.) Connect the wall jack to the LINE jack connection on the back of the Vortex EF2241 (or Vortex EF2201 or Vortex EF2211). Connect the PHONE jack

6.) VERIFYING THE PROPER FIRMWARE IN THE SOUNDSTATION VTX 1000 AND THE VORTEX DEVICE In order for the SoundStation VTX 1000 to work correctly with

signals to the Vortex as well as to make wideband audio calls. The default settings for the SoundStation VTX 1000 will not allow one to send and rece

24

8.) CONNECTING OTHER SOURCES TO A VORTEX DEVICE All Vortex devices (except the Vortex EF2201) have line level inputs and outputs that may be used t

VORTEX OUTPUT WIRING BALANCED INPUT Connect the Positive conductor of the Vortex device to Pin 2 of the XLR connector, the Negative conductor of the

MICROPHONE LEVELS For wired microphones, the input gain is dependant on the sensitivity of the microphone as well as the typical distance from the t

Once the external devices have been wired to the Vortex device, the Input and/or Output gain of the Vortex device needs to be set to match the nominal

1. Enable SoundStation VTX 1000 Mode for the appropriate input of the Vortex device. This can be done from Conference Composer or via the front pane

8.) CONNECTING OTHER SOURCES TO A VORTEX DEVICE ... 25 Vortex Input Wiring...

From the front panel, go to the VORTEX OUTPUT SETTINGS menu item, press ENTER, select the appropriate input, use the DOWN or UP buttons to scroll t

SOUNDSTATION VTX 1000 1. Press the PHONE BUTTON. You should hear a dial tone in the room if the interface module is connected to a analog telephon

8 MICS, 4 LOUDSPEAKERS INTRODUCTION / ROOM LAYOUT This example illustrates a 23 ft. X 17 ft. X 10 ft. conference room that has 8 tabletop micropho

33

SYSTEM LAYOUT The audio components for the room are 8 tabletop microphones, 1 Vortex EF2280, 1 video codec, 1 program audio source, 1 SoundStation VT

35

CONFERENCE COMPOSER LAYOUT Most of the default parameters of the Vortex EF2280 will satisfy our design. However, we will need to change the Mic/Lin

Matrix Mixer The matrix mixer will need to be changed from the default settings in order to use Output A for the Video Codec, Output B for the Inte

Output Filters 38

Since we have the SoundStation VTX 1000's subwoofer in the system design, we need to use filters to direct the energy of the incoming signal to t

Presets...

the signal will be attenuated at a rate of 12 dB / octave. Outputs The VTX Mode Option for Output B needs to be selected so that the SoundStat

Presets In order to permanently save the settings to the Vortex EF2280, you must use a User Preset. Here, we've used PRESET 16

the POWER ON PRESET to reflect the proper Preset that you want the unit to power up to if the unit loses AC power. 12 MICS, 8 LOUDSPEAKERS, 4

REINFORCEMENT INTRODUCTION / ROOM LAYOUT This example illustrates a 24 ft. X 50 ft. X 10 ft. conference room that has 12 tabletop microphones and 8 c

44

SYSTEM LAYOUT The audio components for the room are 12 tabletop microphones, 1 Vortex EF2280, 1 Vortex EF2241, 1 video codec, 1, 4-channel amplifier,

46

CONFERENCE COMPOSER LAYOUT VORTEX EF2241 Most of the default parameters of the Vortex EF2241 will satisfy our design such as microphone gains. Howev

The VTX Mode Option for Input B needs to be selected so that the SoundStation VTX 1000 can make wideband audio calls. Automixer One of our desig

EFBus The default routing of the EFBus will be sufficient for our design. However, for clarity, the labels have been changed to reflect the signa

Cable Drawing 3: Unbalanced Output to Vortex Input Connection...99 APPENDIX

50

Matrix Mixer The matrix mixer will need to be changed from the default settings in order to send Inputs 1-4 as well as Output W, X, Y, and Z bus cha

52

Output Filters Since we have the SoundStation VTX 1000's subwoofer in the system design, we need to use filters to direct the energy of the inc

The VTX Mode Option for Output B needs to be selected so that the SoundStation VTX 1000 can make wideband audio calls. Presets 54

In order to permanently save the settings to the Vortex EF2241, you must use a User Preset. Here, we've used PRESET 16, although you may use any

Most of the default parameters of the Vortex EF2280 will satisfy our design such as microphone gains. However, we will need to re-label the EFBus fo

W, X, Y, and Z buses, the Vortex EF2280 assigns that audio to one of three mixes for the W, X, Y, and Z Buses: WM0, WM1, WM2, XM0, XM1, XM2, YM0, YM1

amplifier. Inputs A, B, and C need to be assigned to Outputs 1-4 and Y. By default, Inputs 1-8 are routed to Output's A and W. Note that since

59

INTRODUCTION This application note explores how to configure the SoundStation VTX 1000 TM to send and receive audio to a Vortex• EF2280, EF2241, EF2

Output Filters The ceiling loudspeakers may not be able to reproduce low frequency energy. Since the subwoofer that is connected to the Vortex EF224

Presets In order to permanently save the settings to the Vortex EF2280, you must use a User Preset. Here, we've used PRESET 16, although you m

16 MICS, 8 LOUDSPEAKERS, 2 ZONES SOUND REINFORCEMENT INTRODUCTION / ROOM LAYOUT This example illustrates a 40 ft. X 18 ft. X 10 ft. conference room t

63

SYSTEM LAYOUT The audio components for the room are 16 tabletop microphones, 2 Vortex EF2280's, 1 video codec, 1 program audio source, 1 SoundSt

65

CONFERENCE COMPOSER LAYOUT VORTEX EF2280 ID 00 Some of the default parameters of the Vortex EF2280 will satisfy our design. However, we will have to

Automixer One of our design requirements was to make all Vortex devices operate as one 16-channel automixer in order to limit the maximum number of

Let's look at the 8 signals WB0-WB7 in the above screenshot. These signals are from 7 other Vortex devices. In this example, the Vortex EF2

In order to satisfy the sound reinforcement requirements, Mic 9 in Vortex EF2280 ID 01 has been placed on the W Bus, Mics 10 and 11 have been placed o

SUMMARY If you are already familiar with Vortex devices, you may not need to read the entire application note. Here is a quick overview of the entir

We will set Output D to -30 dB in order to protect the subwoofer from "bottoming out" on high-amplitude transient sounds. The output R

71

Output Filters Since we have the SoundStation VTX 1000's subwoofer in the system design, we need to use filters to direct the energy of the inc

The ceiling loudspeakers may not be able to reproduce low frequency energy. Since the subwoofer handles that job, we will remove low frequency energ

Outputs The VTX Mode Option for Output B needs to be selected so that the SoundStation VTX 1000 can make wideband audio calls. 74

Presets In order to permanently save the settings to the Vortex EF2280, you must use a User Preset. Here, we've used PRESET 16, although you may

Some of the default parameters of the Vortex EF2280 will satisfy our design. However, we will have to change the Automixer, Matrix Mixer, and Presets

Presets In order to permanently save the settings to the Vortex EF2280, you must use a User Preset. Here, we've used PRESET 16,

renamed USER PRESET 16 to CONFERENCE ROOM. Once the User Preset has been saved, you must also change the POWER ON PRESET to reflect the proper Preset

Options, EFBus, Matrix Mixer and Presets to satisfy our design goals. Options One of our design goals was to have the Vortex EF2201 automatically

SYSTEM OVERVIEW Below are three system examples that illustrate the signal flow between a Vortex device and a SoundStation VTX 1000. VOICE (NARRO

The Vortex EF2201 can place 1 signal on the bus (P) but can retrieve signals from any of the P (except ID 00), W, X, Y, or Z buses; thus, there are

mix-minus which allows the user to work with a simple mix-minus sum of all the other devices. If more complicated mixing from other devices is requir

Each group of microphones, the codec, and the interface module are sent at 0 dB to Output T. The Program Audio signals are attenuated by 10 dB and

In order to permanently save the settings to the Vortex EF2201, you must use a User Preset. Here, we've used Preset 16, although you may use an

VORTEX EF2241 EXAMPLES 12 MICS, 8 LOUDSPEAKERS, 4 ZONES SOUND REINFORCEMENT See the section entitled “12 Mics, 8 Loudspeakers, 4 Zones Sound Reinfor

85

SYSTEM LAYOUT The audio components for the room are 4 tabletop microphones, 1 Vortex EF2241, 1 video codec, 1 program audio source, 1 SoundStation VT

87

CONFERENCE COMPOSER LAYOUT Most of the default parameters of the Vortex EF2241 will satisfy our design. However, we will need to change the Mic/Li

Mic/Line Inputs The VTX Mode Option for Input B needs to be selected so that the SoundStation VTX 1000 can make wideband audio calls. Matrix Mixer

VOICE (NARROWBAND AND WIDEBAND) AND VIDEO Here, a local talker uses a Vortex device, a SoundStation VTX 1000, and a video codec to send audio to two

Inputs C and D are attenuated by 3 dB to Outputs D, Y, and R1 because if the left and right channels are mono, both channels will increase 6 dB in gai

Since we have the SoundStation VTX 1000's subwoofer in the system design, we need to use filters to direct the energy of the incoming signal to t

the signal will be attenuated at a rate of 12 dB / octave. Outputs The VTX Mode Option for Output B needs to be selected so that the SoundStat

wideband audio calls. Presets In order to permanently save the settings to the Vortex EF2241, you must use a User Preset. Here, we&ap

renamed USER PRESET 16 to CONFERENCE ROOM. Once the User Preset has been saved, you must also change the POWER ON PRESET to reflect the proper Preset

OVERVIEW Here is a drawing of all the connectors on the SoundStation VTX 1000 Interface Module. WIRING RECOMMENDATIONS / LIMITATIONS The

supplied RCA cables to connect the Vortex to the Auxiliary Input and Output jacks on the Interface Module are not long enough, we recommend using a au

97

APPENDIX B: SOUNDSTATION VTX 1000 USER CONTROLS / LCD LAYOUT Here is a drawing of the User Controls and the LCD screen layout of the SoundStation V

APPENDIX C: VORTEX INPUT WIRING CABLE DRAWING 1: WIRED MICROPHONE CONNECTION Connect the Positive conductor of the Vortex device to Pin 2 of the