CODECPRO SPEEX CODEC
CODEC

The Speex codec is an open source initiative. Speex is based on CELP and is designed to compress voice at bitrates ranging from 2 to 44 kbps. Some Speex features include: narrowband, wideband, and ultra-wideband (32 kHz) speech compression and support for stereo encoding. Speex also integrates packet loss concealment (PLC), discontinuous transmission (DTX), an acoustic echo canceller (AEC) and noise suppression.

Speex Codec Overview

The memory and CPU details are generic Standard specifications.

For more details and information about Speex optimisation, please contact us at contact CodecPro.

Speex Codec Technical Specifications

  • Bandwidth: 50-(4 to 16K) Hz
  • Standardized: 2002
  • Technology: CELP
  • Bit rate: 2 - 44 kbps
  • Delay (msec): 30 ; 34
  • Frame size (msec): 20 ; 10
  • Lookahead (msec): 10 ; 24
  • Quality: Narrowband ; Wideband ; Superwideband
  • Complexity (MIPS): 0-120;60-300;90-300
  • ROM (bytes): 150K
  • RAM (bytes):12K + 50K/ch.