12x8 Audio DSP- P128SPDT

The PTPL P128SP-DT is a high-performance 12×8 Audio Digital Signal Processor built for enterprise conferencing, collaboration, and professional audio applications. Designed with 12 mic/line inputs and 8 outputs, it integrates advanced Acoustic Echo Cancellation (AEC), flexible DSP processing, and a USB audio interface for seamless connectivity with soft-codec platforms. Certified for Microsoft Teams and Zoom Rooms, the P128SP-DT ensures crystal-clear speech, reliable echo cancellation, and easy integration into modern AV environments. Its robust control via USB, RS-232, and Ethernet, combined with comprehensive logic I/O, makes it ideal for boardrooms, classrooms, training centers, and command-and-control rooms.

• Audio Inputs – 12 × mono mic/line inputs, balanced or unbalanced – Acoustic Echo Cancellation (AEC) available on all input channels – +48V phantom power provided on 8 inputs for condenser microphones – Input impedance: >10 kΩ balanced, >5 kΩ unbalanced – Maximum input level: +20 dBu

• Audio Outputs – 8 × mono line-level outputs, balanced or unbalanced – Output impedance: <200 Ω – Maximum output level: +20 dBu

• AEC Performance – Tail length: >200 ms – Adaptive echo cancellation with fast convergence – Full duplex operation with near-end speech enhancement

• Conversion – 24-bit analog-to-digital and digital-to-analog converters – 48 kHz sampling rate – Dynamic range: >110 dB

• DSP Functions – Standard, automatic, and matrix mixers – Parametric equalizers (PEQ) with multiple bands – High-pass and low-pass filters (HPF, LPF) – Feedback suppression and notch filtering – Leveler, limiter, compressor, and ducker – Adjustable gain stages – Delay: up to 500 ms per channel – Advanced AEC processing with noise reduction

• Audio Performance – Signal-to-Noise Ratio (SNR): >107 dB @ maximum output – Frequency Response: 20 Hz – 20 kHz (±0.5 dB) – Common Mode Rejection Ratio (CMRR): >60 dB @ 1 kHz – Total Harmonic Distortion + Noise (THD+N): <0.02% (20 Hz – 20 kHz)

• USB Audio Interface – Up to 8 configurable USB audio channels (in/out) – USB 2.0 compatible for PC connectivity – Plug-and-play support for Microsoft Teams, Zoom Rooms, and UC platforms

• Digital I/O – 8 contact inputs for mute, activation, preset recall – 8 logic outputs for LED or tally feedback (5V, TTL compatible)

• Network Connectivity – 10/100/1000 Base-T Ethernet port (RJ-45) – Supported protocols: ARP, ICMP, IEEE 802.1X, IP, TCP, DHCP, HTTPS, Telnet, SSH – Control and monitoring via standard web interface and third-party API

• Control & Monitoring – Interfaces: USB, RS-232, Ethernet – Compatible with PTPL control panels and third-party automation systems – Secure remote access with HTTPS and SSH

• Indicators & User Interface – Front-panel LEDs for input/output signal presence and clip status – System status indicators for power and network connectivity

• Certifications & Compliance – CE, UL, RoHS, WEEE, FCC – Designed to meet enterprise and government AV standards

• Power Supply – 100–240 VAC, 50–60 Hz universal input – Power consumption: <50 W

• Environmental – Operating temperature: 0°C to +50°C – Storage temperature: –20°C to +70°C – Relative humidity: 10% – 90%, non-condensing

• Mechanical – Form factor: 1U rack-mountable chassis – Dimensions (W × D × H): 482 × 280 × 44 mm (approx.) – Weight: 3.5 kg (approx.)

• Versatile I/O – 12 mic/line inputs with AEC (8 with +48V phantom power), 8 line-level outputs.

• Advanced DSP Engine – Matrix mixing, automatic mixers, parametric EQ, HPF/LPF, feedback suppression, ducker, limiter, leveler, delay, and AEC.

• AEC Performance – >200 ms tail length ensures robust echo cancellation in challenging acoustic spaces.

• High-Fidelity Conversion – 24-bit / 48 kHz A/D and D/A for professional-grade audio.

• USB Audio Interface – Supports up to 8 configurable channels for seamless conferencing with PCs and UC platforms.

• Digital I/O Expansion – 8 GPIO inputs for mic muting, triggers, or presets; 8 GPIO outputs for LED indicators.

• Enterprise-Grade Networking – Gigabit Ethernet supporting ARP, ICMP, IEEE 802.1X, TCP/IP, DHCP, HTTPS, Telnet, SSH.

• Front-Panel Monitoring – Dedicated LED indicators for signal and clipping on all inputs and outputs.

• Flexible Control Options – Managed via USB, RS-232 and Ethernet.