Vancura Innovations ... a unique company

Imagination is more important than knowledge. - Albert Einstein -
Until you have to build what you’ve imagined. - Unknown Engineer -

Home Page

Channel Talker MADI

By Vancura Innovations

MADI Signal Generator: 64 Channel

With Voice-over ID

- 64 embedded channel MADI output.
- 2 Coaxial MADI outputs.
- 1 FIBER MADI output (SC 1300nm).
- Word Clock 48KHz output reference.
- 1 AES 48KHz Signal output channel.
- 1 AES DAR output reference channel.
- Word Clock 48KHz input reference.
- DAR/House Black input reference.
- Perfect for MADI enabled venues:
set-up, testing, and channel management.




- Professional Digital Audio Test Equipment –

The CT-MADI signal generator makes it possible for one person to setup or verify a MADI communication link easily, quickly, and accurately. The unit produces a hands-free audible sequential voice ID for each channel, eliminating the need for external generators or extra personnel to switch between sources. In addition to the voice ID’s, the CT-MADI includes four tone sets that will verify frequency response and level accuracy. MADI outputs are available on both COAX and FIBER. The unit can be locked to a variety of external references and generates a re-clocked Word clock.

In addition to a MADI output, there is a Reference AES DAR output and AES Audio output with the same signal that is on the MADI channels.

Channel Talker Specifications:

MADI Output: 64 Channels embedded on 125Mb serial digital channel. Outputs on COAX and FIBER. Signal is locked to Word Clock. Fiber: SC connector, 1300nm wavelength. COAX: 600mv into 75 ohms.

WORD Clock Input: Word clock input will lock to input greater than 200mVP-P. Clock input 48KHz +/- 200ppm.

WORD Clock Output: Word clock output 48KHz will drive 2.5VP-P into 75 ohms. Internal jumper to select 4.5VP-P output.

Tones: 4 tones selectable:

1) 1KHz @-20dBFS, Level can be set to -18dBFS with internal jumper.

2) 400Hz @-20dBFS, Level can be set to -18dBFS with internal jumper.

3) Frequency SWEEP: Eight stepped tones: 75, 125, 250, 500, 1000, 2000, 4000, and 8000Hz. Duration 1-sec (or 0.5-sec with internal jumper) each continuously repeating. Output level is exactly -20/-18 dBFS with 19-bit resolution and 20-bit compatible. 

4) LEVELS: 10KHz @ -20 dBFS, -17 dBFS, -14 dBFS, -11 dBFS, -8 dBFS, -5 dBFS, -2 dBFS, & Silence. Each level held for 2.5 seconds. Frequency can be set to 1KHz with internal jumper.

ID Mode: Select voicing and Tone combinations 1) Both ON, 2) Voicing Only, 3) Tones Only, 4) MUTE

AUX Channel Output: Digital stream output with 4 selectable tones. Identical information is on both channels. Output is AES/EBU compatible 1.0VP-P into 75 Ohm BNC).

DAR Output: One Digital Audio Reference output (DAR). Audio output Left and Right = 0.00 volts (minus infinity db – dead silence). Class 1 reference signal.  Output is AES/EBU compatible (1.0VP-P into 75 Ohm BNC).

DAR/Color Black Input: Locks to external reference 48Khz data stream, or standard house reference Color Black analog video.

Channel ID: Sequential voice channel ID overlay on all 64 channels for ease of identification. Natural voice wav file. Unit is pre-programmed with generic sequencing 2/3 sec phrases (“One”, “Two”, "Three", etc.).

Input Voltage: 5VDC Connector 2.1mm X 5.5mm X 11mm (inside x outside x Length). Dual power input for redundant power operation.

Input Current: 500ma Maximum. 

Input Power Supply: Two 110-240VAC to 5VDC @1000ma green converters. 

Temperature: 0 C to 50 C (32 F to 125 F) non-condensing.

Warranty: 90 days to cover normal operation, defects in materials, and workmanship.

Size W X D X H: 207mm x 178mm x 43mm (8.15in x 7.0in x 1.7in). 1U high 1/2 Rack compatible.

Note: Items Include:

CT-MADI-A: CTMADI & two power supplies (USA Plug). Tone level -20DBFS.

CT-MADI-B: CTMADI & two power supplies (EURO Plug). Tone level -18DBFS.

Half Rack Mounting Kit (HRMK-1U) includes: Half Rack Panel (HRP-1U), and Rack Mounting Hardware (RMH-1U).

Half Rack Panel (HRP-1U) includes: Half rack blank panel, and screws to join to panel to equipment.

Rack Mounting Hardware (RMH-1U) includes: Two Rack mounting tabs to join equipment to rack, and 4 screws to mount tabs to equipment. Rack screws not included.

                         (Dealer inquiries welcome)

Shop On-line With PayPal
Item Name:

Item No.


Channel Talker MADI (USA)* CT-MADI-A $2880.00
Channel Talker MADI (Euro)* CT-MADI-B $2880.00
USB Cable A to mini 5-pin (2M) USB to A-mini 5pin $9.95
Spare Power Supply 5V @1.5A
100V-240V USA plug
Spare Power Supply 5V @1.2A
90V-264V Euro plug
Half Rack Mounting Kit; includes: HRP-1U & RMH-1U HRMK-1U $120.00
Half Rack Panel /with join screws HRP-1U $90.00
Rack Mounting Hardware RMH-1U $40.00
International Shipping UPS Ship2EU $175.00

*Actual shipping and handling charges are based on method of shipping and destination.

Note: Foreign shipping is easiest if paid with your shipping account.
That way actual costs and tariffs are covered at same time.

Download USB Drivers: USB_Driver (271KB) Driver is available from

Download MADI User Guide: CT-MADI_User_Guide.pdf (212KB).

Download MADI Wave Saver: MADI_WAV_IT.exe (5.191MB).

Download Side-by-side rack mount assembly guide: CT_side_by_side_assembly.pdf (PDF 51KB) 

Note: Specifications subject to change without notice. The information in this document is believed to be accurate. Vancura Innovations assumes no responsibility for possible printing errors and omissions.

horizontal rule

Contact Information:

e-mail Address:

horizontal rule


Home Page ] Up ] Do File ]

Send mail to with questions or comments about this web site.
Copyright © 2002-2023 Vancura Innovations, Rock Island, IL
Last modified: November 20, 2023