ALF-DSP44-UD

Josawa ALF-DSP44-UD - audio signal processor DSP

The Josawa ALF-DSP44-UD is a professional DSP audio signal processor designed for advanced management, processing, and distribution of audio signals in AV installations. The device integrates analog and Dante network inputs and outputs, providing high flexibility in configuration for conference, corporate, and permanent installations. With the use of two powerful ADI SHARC 21489 processors and a wide range of DSP algorithms, the ALF-DSP44-UD model enables the realization of complex signal processing scenarios, simulating the work of a sound engineer.

The processor offers extensive processing features such as acoustic echo cancellation (AEC), noise reduction, and automatic mixing, significantly improving the quality and clarity of sound in conference, video conferencing, and broadcast applications. The use of 24Bit A/D and D/A converters with a sampling frequency of 48kHz ensures high audio processing quality, while a dynamic range of 110dB and a maximum level of +24dBu guarantee stable operation in demanding installation environments.

The ALF-DSP44-UD is equipped with 4 Mic/Line inputs and 4 balanced line outputs, realized on Phoenix connectors, as well as 4 Dante inputs and 4 Dante outputs, allowing integration with modern audio networks. Additionally, the device offers a USB Audio interface (1 input / 1 output) and extensive control options via IP, RS-232, and RS-485, enabling easy integration with automation and AV control systems.

Configuration and management of the processor are done using the dedicated Josawa DSP Controller software for Windows. The application allows full control of all DSP parameters, configuration of processing modules, and creation of a graphical user interface tailored to the needs of the installer, technician, or end user. Advanced permission management mechanisms allow restricting access to selected functions, increasing the security and stability of the system.

Functionality:

• 4 Mic/Line inputs and 4 balanced line outputs (Phoenix connectors)
• 4 Dante inputs and 4 Dante outputs
• 2 channels of acoustic echo cancellation (AEC)
• automatic mixing (Auto Mixer)
• noise reduction (Noise Suppression)
• automatic gain control (AGC)
• DSP matrix for signal routing
• 8-band parametric equalizer (inputs and outputs)
• High Shelf and Low Shelf filters
• compressor / limiter
• expander
• feedback suppressor (Feedback Suppressor)
• ambient noise compensation (ANC)
• delay adjustment (Delay)
• USB Audio 1x input / 1x output
• IP control and PC software
• RS-232 and RS-485 control interfaces

Features:

• processor: 2x ADI SHARC 21489
• A/D and D/A conversion: 24Bit / 48kHz
• dynamic range: 110dB
• maximum signal level: +24dBu
• THD+N: 0.003%@4dBu
• frequency response: 20Hz-20kHz (±0.2dB)
• system delay: <3ms
• Phantom power: 48V
• input impedance: 9.4kΩ
• output impedance: 102Ω
• channel separation: 108dB
• CMRR: 80dB
• noise level: -91dBA
• power supply: AC110-240V
• maximum power consumption: <40W
• form factor: half rack
• dimensions: 215x184x45mm
• weight: 1.8kg
• configurable user interface (GUI)
• advanced user permission management
• option for integration with external control panels (optional)

Josawa ALF-DSP44-UD is a comprehensive solution for professional AV installations, offering extensive signal processing capabilities, flexible system integration, and advanced configuration and control options, meeting the demands of modern conference and installation environments.