Adaptive Digital Technologies, Inc.

Mailing Address: 700 East Main Street, Suite Number 201, Norristown, Pennsylvania 19401 USA
Design Services Contact: Russ Nelson, 610-825-0182 x120

Adaptive Digital Technologies, founded in 1994, is the leading designer of software solutions in the voice communication space. Adaptive Digital specializes in voice communication software with a focus on Voice Quality Enhancement (VQE) algorithms and solutions in both embedded and cloud-based applications.
Adaptive Digital’s highly optimized ITU / ETSI / IEEE compliant software enables voice and enhances speech quality in VoIP, IoT, traditional, and non-traditional telecom applications.

Our VQE software is available as individual algorithms, or as turnkey solutions for a vast range of communication applications.

  • High Definition Acoustic Echo Canceller (HD AEC™)- Multi, and Single Mic
  • Stereo Acoustic EC (SAEC)
  • Noise Reduction (NR) featuring noise, siren, howling and feedback cancellation, Noise Suppression (NS)
  • Packet/Line Echo Canceller (LEC)
  • Automatic Gain Control (AGC)
  • Packet Loss Concealment (PLC)
  • Acoustic Beamformer
  • Adaptive Jitter Buffer (AJB)
  • Comfort Noise Generation
  • Dual Mic Noise Cancellation
  • Robust Bulk Delay Finder

Adaptive Digital’s comprehensive voice software stack consists of a complete range of Voice Codecs, including G.711, G.722, G.722.1, G.722.2 (AMR WB), G.723.1, G.726, G.728, G.729/A/B/E/H, AMR NB, MELPe, Opus, Speex, EVRC, LPC; Telephony including DTMF, VAD CNG, Tone generate, Tone suppress, Caller ID, Tone Relay, Conference Bridge; Modems including T.38 Fax Relay and Encryption; AES, SRTP and Hashing. Our VoIP Engine™ product is a software engine package that handles all the voice processing from PCM to Packet and back.

Adaptive Digital software is available on a wide range of DSP, RISC including ARM, x64/x86, TI, MIPS, SHARC processors and operating systems including: Android, iOS, Linux x86 (32-bit) / x64 (64-bit), Windows 32-bit / 64-bit operating systems. Our engineering team works with your developers throughout the product-development cycle to ensure the successful development and launch of your new product.

Adaptive Digital’s software is licensed in a multitude of voice communication applications across the globe.


  • Software Design
    • Android OS
    • ARM
    • ASIC (Verilog & VHDL)
    • C/C++
    • DSP Algorithms, Signal Processing IP
    • Intel® (Windows®)
    • Java
    • Linux
    • Linux - Debian
    • Linux - Ubuntu

Development Tools

  • IDE/Compiler
    • ADI - Visual DSP++/CROSSCORE
    • Freescale Code Warrior
    • IAR
    • Keil
    • Texas Instruments Code Composer Studio

Industries Served

  • Aerospace
  • Automotive
  • Consumer
  • Government
  • Industrial
  • IP Voice (VoIP)
  • Marine
  • Medical
  • Military
  • Smart Home/Devices
  • Telecommunications
  • Wearables


  • Analog Devices (ADI)
  • ARM
  • MIPS
  • STMicroelectronics
  • Texas Instruments

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