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Speech Codec

Royalty-free codec for Voice over IP (VoIP) network. IntegrIT iLBC delivers speech quality better than G.729A and equal to G.729E, while offering substantially better quality over congested networks with packet loss. It is designed for narrowband speech and results in a payload bit rate of 13.33 kbps for 30 ms frames and 15.20 kbps for 20 ms frames. The codec enables graceful speech quality degradation in the case of lost frames, which occurs in connection with lost or delayed IP packets

IntegrIT Media Transcoder SDK is a scalable, programmable multichannel media streams transcoder, designed to provide conferencing and transcoding capabilities required to route VoIP traffic in PSTN and GSM, CDMA, LTE networks. The transcoder supports popular narrow band and sideband codecs including WebRTC and oriented to work on multi-processors 64bit stations running Windows Server or Linux Server. It can be easily integrated in customer's infrastructure adding simple control frontend

Common air interface for DMR radio network

Low-delay code excited linear prediction (LD-CELP) voice codec conforming complete ITU-T G.728 recommendation. It provides coding of speech signals at 16 kbit/s and at reduced rates 9.6 and 12.8 kbit/s. Integrated packet loss concealment synthesizes the speech during the periods when the bit stream is missed or errored making the signal erasures inaudible. Voice codec can be used in a wide range of applications such as multimedia devices, visual telephony, wireless telephony, and videoconferencing products

Beam Forming combined with AEC and NS

2400 bps Speech Codec

LEC - linear echo canceller

64 kbit/sec A/u-law voice codec fully compliant with ITU-T G.711 recommendation. Packet loss concealment (PLC) feature enables it for use in a wide range of internet/mobile applications such as VoIP and videoconferencing products. The objective of PLC is to generate a synthetic speech signal to cover missing data (erasures) in a received bit stream. It tries to synthesize the signal that has the same timbre and spectral characteristics as the missing signal. If the erasures are not too long, and the erasure does not land in a region where the signal is rapidly changing, the erasures may be inaudible after concealment. VAD/CNG feature provides means to use of discontinuous transmission in a packet-based communication system that can significantly reduce the transmission rate and hence improve the bandwidth efficiency. It uses generic payload format and may also be used with other speech codecs without built-in DTX capability such as G.726, G.727, G.728, and G.722. The VAD algorithm makes a voice activity decision based on multiple parameters such as the full band energy, the low band energy, the zero-crossing rate and a spectral measure. This provides robust decision over a wide range of conditions and the level of ambient noise.

Acoustic Echo Canceler Wideband

G.729AB - 8 kbit/sec CS_ACELP vocoder conforming complete ITU-T G.729 recommendation. It can be used in a wide range of applications such as multimedia devices, visual telephony, wireless telephony, and videoconferencing products.

Voice Codec

Voice Codec Dual rate wideband (507000 Hz) voice codec conforming the ITU-T G.722.1 recommendation. It can be used in a wide range of applications such as multimedia devices, visual telephony, wireless telephony, and videoconferencing products

Cross-platform Wideband Engine for hands free VoIP communication

G.729.1 scalable wideband speech and audio coding algorithm operating at 8-32 kbit/s scalable interoperable with G.729, G.729A and G.729B.conforming the ITU-T G.729.1 recommendation. The output of the coder has a bandwidth of 50-4000 Hz at 8 and 12 kbit/s and 50-7000 Hz from 14 to 32 kbit/s. At 8 kbit/s, G.729.1 is fully interoperable with G.729, Annex A/G.729 and Annex B/G.729. It can be used in a wide range of applications such as multimedia devices, visual telephony, wireless telephony, and videoconferencing products.

Standard ACELP vocoder adapted by the 3rd Generation Partnership Project (3GPP). It is an Adaptive Multi Rate-Narrow Band (AMR-NB) speech codec. This vocoder is used mainly in 3rd generation mobile telephony devices to compress toll-quality speech at 8000 samples/second. GSM-AMR codec has eight basic bit rates, 12.2, 10.2, 7.95, 7.40, 6.70, 5.90, 5.15 and 4.75 Kbit/s

Wideband Voice Codec GSM AMR WB

Wideband Voice Codec

SDK for video calls and conferencing

Control interface for APCO P25 base station or repeater via IP network