Noise Reduction Gen 2 Voice Quality Enhancement Algorithm

Telephony by Adaptive Digital

ADT NOISE REDUCTION
  Voice Quality Enhancement Software

DESCRIPTION

The Adaptive Digital second-generation noise reduction (NR Gen 2) software is better at reducing background noise in speech signals under such circumstances where the background sound intensity levels are high. The algorithm can be customized to trade off between complexity, memory requirements, and required noise reduction.  Higher MIPS is the trade off for the better performance over Adaptive Digital’s NR Gen 1 algorithm.

APPLICATIONS

Gen2 noise reduction is an excellent choice for applications with high background noise environments. Applications include traditional, mobile, and hands-free telephone systems, conferencing, speech recognition, and alarm systems. 

Data sheet: .pdf

FEATURES

  1. User configurable

  2. Enhances Voice Quality (improves Mean Opinion Score)

  3. Functions are C-callable

  4. Designed for multiple channel operation

AVAILABILITY

ADT Noise Reduction is available on the TMS320™ DSP Family

C55x™DSP, C64x™DSP, & C64x Plus ™DSP Generations

SPECIFICATIONS

Noise Reduction Gen 2 C55x

All Memory usage is given in units of byte.
Variant MIPS (Peak) Program Memory Scratch Memory Tables Per Channel Data Memory
C55x 29 11354 5678 3294 11968

 

Noise Reduction Gen 2 C64x, C64x+

All Memory usage is given in units of byte.
Variant MIPS (Peak) Program Memory Scratch Memory Tables Per Channel Data Memory
C64x 14.1 37536 5670 4332 11960
C64x + 13.8 30656 5670 4332 11960

FUNCTION

NCAN_ADT_init( . . .) Initiates a channel of Noise Cancellation

NCAN_ADT_reduce( . . . ) Executes Noise Cancellation