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NPU Learning Kit

STR NLK03: NPU Learning Kit (Audio Insert)

  • Description

The STR NLK03 NPU Network Learning Kit (Audio Insert) is the highest range of the first generation development kit from Stream-Plus. The kit allows developers to encode analogue audio into live network stream. Apart from that the kit also shares all the functionalities of the STR NLK02, allowing it to also receive and decode IP audio streams back into analogue audio.  The kit supports a large number of protocols, when coupled with multiple STR NLK02 along with the provided UCX software framework, developers can easily create a network paging system with multiple zone control or even a distributed network background music system with live audio streaming.


  • IP Paging system
  • Analogue audio distribution bridge via TCP/IP infrastructure. Make use of the STR NLK01 and STR NLK 02 to transfer audio over a wide physical area
  • Stream analogue audio into an IP infrastructure

Technical Data

Speed: 400MHz
Memory: 128MB
FPU: Hardware
GPU: Hardware
Internal Storage: 128MB
External Storage: USB
Networking: 10/100Mbit Ethernet
Audio Input: 3.5mm Stereo, 0dB
Frequency Response: 20Hz ~ 20kHz
Audio Encoding Formats: G.711, MP3
Audio Output: 3.5mm Stereo, 0dB
Frequency Response: 20Hz ~ 20kHz
Audio Decoding Formats: G.711, MP3
Application Interface: Built-in UC Platform - Control and Audio
Digital I/O Pins: 2In, 2Out
RS 232: 1
USB Host: 2
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