Descriptions
The Alfatron ALF-DSP44-U is an 4 in / 4 out Audio Digital Signal Processor with Advanced audio processing capabilities and features 4 analogue inputs and 4 analogue outputs, 2 Channels of AEC processing, USB Audio, RS-232, RS-485, and IP control.
The Alfatron ALF-DSP44-U Audio Digital Signal Processor (DSP) is equipped with several core technical features to simulate the work of an audio engineer. The ALF-DSP44-U consists of 4 analogue inputs and 4 analogue outputs, USB Audio, RS-232, RS-485, and IP control. With one ADI SHARC 21489 processor, it is equipped with advanced audio processing modules including Acoustic Echo Cancellation (2 Channels), Noise Suppression, and Auto Mixing. The Analogue to Digital (A/D) and Digital to Analogue (D/A) convertors on the Input and output stage of the ALF-DSP44-U features 48kHz sampling rate and a bit rate of 24Bits, providing high definition audio sampling and processing. It also has a dynamic range of 110dB and a maximum level of +24dBu. It features input and output processing modules including: Expanders, Compressors, Acoustic Gain Compensation (AGC), Parametric EQ, Feedback Suppression, Automatic Noise Supression(ANC) and Delay. DSP-based audio management, routing, processing, and control, is facilitated via a computer running the GUI Software for the ALF-DSP44-U Hardware. The Alfatron DSP Controller software is a Windows-based application, which is used to configure and control the ALF-DSP44-U. The Alfatron DSP Controller is a full-feature application, including parameter adjustments and peripheral accessory settings of all modules, such as RS232, RS485, and click-and-drag panel configuration. The most interesting part is the user interface which allows the engineer to customize the user interface so that the integrator can edit it; or the onsite technicians, or end users can operate it. Advanced security features make it possible for the end user to only access the controls allowed by the engineer, or the designer.
Product Features:
- Includes one ADI SHARC 21489 Audio Processor
- 4 Balanced Mic / Line Inputs and 4 Balanced Line outputs on phoenix (PCB) connections
- 2 Channels of AEC processing
- 24Bit, 48kHz A/D and D/A convertors
- 1ch. USB input and output
- Advanced Audio Processing incl. AEC, Auto-Mixing, Noise Suppression, Matrix
- Audio Processing Modules include:
- Expanders
- Compressors
- Acoustic Gain Compensation (AGC)
- Parametric EQ
- Feedback Suppression
- Delay
- Software GUI Interface for easy setup and control of all DSP features.
- RS-232, RS-485, and IP Control.
Specification
Technical Specifications
| Processor | ADI SHARC 21489(x1) |
|
A/D and D/A Convertors
(Sampling rate / Digitalizing bit) |
48kHz / 24Bit |
| Input Gain | 0 – 48dB in 6dB Steps |
| Phantom Power | 48V |
| Frequency Response (20~20KHz) | ±0.2dB |
| Maximum Level | +24dBu |
| THD + Noise | 0.003%@4dBu |
| Dynamic Range | 110 dB |
| Background Noise (A-weighted) | -91 dBA |
| Common Mode Rejection Ratio @60Hz | 80dB |
| Channel Isolation @1KHz | 108 dB |
| Input Impedance (Balanced Connection) | 9.4KΩ |
| Output Impedance (Balanced Connection) | 102Ω |
| System Delay | <3ms |
| Inputs | 4 Balance Line/Mic Inputs on Phoenix Connections |
| Outputs | 4 Balance Line Outputs on Phoenix Connections |
|
Audio Processing Functions
|
Acoustic Echo Cancellations (AEC) – 2 Channels
Automatic Gain Control (AGC) Noise Suppression Auto Mixer Matrix 8 Band Parametric EQ (Inputs & Outputs) High / Low Shelf Filters Expander Compressor / Limiter Feedback Suppressor Delay |
| USB AUDIO | 1 In – 1 Out |
| Control Options | IP based PC software and host control.
Third party control for RS-485 and RS-232. |
Mechanical
| Working Power | AC110~240V 5Hz-60Hz |
| Maximum Power Consumption | <40W |
| Rack Space Required | Half Rack |
| Dimensions (Width x Depth x Height) | 215x184x45mm |
| Shipping Weight | 1.8KG |
Software Requirements
A Windows PC with:
- Intel i5 processor or higher
- 8 GB or higher memory
- 1 GB free storage space
- Windows 7 or higher version
- Minimum 1920 x 1080 resolution
- 24 bit or higher color
- Network (Ethernet) port
Software Installation:
Visit the device web page address: 169.254.10.227
- Download software from the Alfatron website and install files.
- Double click the downloaded file and install by following the instructions on the screen.
After the software is installed, read other parts of the help file, or execute the software.
After the software is installed, use one of the following methods to open the software:
- Double Click Desktop Icon
- Open from Start menu