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The Synapse ASV12 is a high-end 12-bit analog composite to serial digital converter, designed for broadcast industry applications. This modular system emphasizes high density, intuitive operation, and high-quality processing. The ASV12 converts analog composite signals to Serial Digital Interface (SDI) and includes a Frame Synchronizer, video proc-amp, VI inserter, and an adaptive 5-Line Comb Filter for signal enhancement. It is capable of working with most common television standards, including PAL and NTSC.
The core function of the ASV12 is to convert analog composite video signals into a 12-bit serial digital format. It employs 12-bit digital decoding to ensure accurate and high-quality signal processing. A key feature is its 5-line adaptive comb filter, which produces a clean, noise-free image with minimal artifacts.
The ASV12 has one analog composite input, capable of accepting a range of video standards. It provides four SDI outputs with embedded audio, which can reduce the need for external distribution amplifiers and embedders.
For automatic standard selection, the ASV12 can detect the input standard and adjust its signal processing accordingly. In 'Auto' mode, it automatically identifies whether the input is a 625 or 525 signal and adapts its operation.
Audio embedding is a significant feature; when used with optional ADD-On cards, the ASV12 can embed up to eight audio channels into the output SDI stream. This is controlled through the Emb-Mode setting, which allows for Off, Append, or Overwrite modes. Append adds additional audio channels, while Overwrite replaces existing audio groups with the processed group. The Emb-A-Sel and Emb-B-Sel settings determine which of the four available audio groups on the Synapse bus are embedded by embedders A and B, respectively. Further granular control is provided by Emb-A1/2, Emb-A3/4, Emb-B1/2, and Emb-B3/4, which specify which audio channels (1 and 2, or 3 and 4) are embedded by each embedder from various AddOn sources.
A built-in framestore allows the ASV12 to handle poor quality input signals and correct timing errors, ensuring a stable output.
Two reference inputs are provided via the Synapse Bus, offering redundancy or allowing operation with different TV standards. The Ref-Input setting allows the user to select which reference input (1, 2, or Auto) is used to lock the ASV12. In Auto mode, it selects Ref_1 for 625 signals and Ref_2 for 525 signals, automatically locking to an available reference.
The Mode setting offers Synchronize and Delay options. In Synchronize mode, the Autophaser/Line synchronizer is active, and the card locks to a reference, taking H-V-delay into account. In Delay mode, no reference is required, and the output timing is derived from the input, with H-Delay and V-Delay settings providing additional delay.
External Freeze functionality allows the ASV12 to freeze the output signal manually by switching to a freeze input. The Ext-Frz setting enables or disables this feature, which is triggered by a GPI contact closure on the BPL01 backplane. The Frz-Mode setting determines whether a complete video frame or field is stored for freezing. Panic-Frz enables the capture of the last video information when the input signal is lost, always using Field mode.
A tracking output provides a timing pulse for use with other Axon Synapse devices, such as for audio synchronization with a DIO24.
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Var-Gain): 0.26x to 1.99x (default 1.00x).Y-Gain): 0% to 150% (default 100%).C-Gain): 0% to 150% (default 100%).Y-Black): -128 to +127 bits (±100mV analog video).Input-Gain): Settings include Fixed (static input stage), Auto-Brst (Automatic Gain Control based on color subcarrier amplitude), Auto-Sync (AGC based on sync amplitude, adjusting for syncs between 300mV and higher), and Variable (manual adjustment).VI-sel): Choose to insert CVBS or Blank into the processed signal.Remove-Setup): Option to remove setup (Black Level) from NTSC signals.Hue): Adjustable between -90 and 90 degrees.Chroma-Enhanc): Improves chrominance signal by increasing edge steepness.EDH-Gen): Switchable on/off to insert SDI Error Detection Handling into the output signal.VLI-Ins): Enables generation of Video Index information for cascaded equipment (e.g., wide-screen manipulation, aspect ratio converters).VLI-Data): Recognizes 16 different modes, divided into 4:3 and 16:9 groups, each with 8 sub-categories (0-7).
General| Brand | Axon |
|---|---|
| Model | Synapse ASV12 |
| Category | Media Converter |
| Language | English |
