• Part: CT8022
  • Description: TELEPHONE SPEECH CIRCUIT
  • Manufacturer: DSP Group
  • Size: 1.41 MB
Download CT8022 Datasheet PDF
DSP Group
CT8022
DESCRIPTION The CT8022 is a speech co-processor which performs full-duplex speech pression and de-pression functions. It provides speech pression for H.323 and H.324 Multimedia Visual Telephony/Video Conferencing products and DSVD modems. The CT8022 has built-in True Speech 8.5 (patible with Microsoft Sound System 2.0, and a standard part of Microsoft Windows 95), and True Speech G.723.1 (for H.323 and H.324). This bination of ITU speech pression standards within a single device enables the creation of a single multimedia terminal, which can operate in all types of H.324 POTS-based and H.323 LAN/Internet-based Video Conferencing systems. True Speech G.723.1 provides pressed data rates of 8.5, 6.3 and 5.3 KBPS and includes G.723.1 Annex A VAD/CNG silence pression, which can supply an even lower average bit rate. The CT8022 provides two additional non-ITU True Speech data rates at 4.8 and 4.1 KBPS. The CT8022 also supports download of additional speech pression software modules to...