Audio compression algorithm found on video codecs, where little bandwidth is allocated for the audio transmission [generally implemented at 16Kbps]. Designed for voice and limited in frequency response, typically only about 50Hz-3.5kHz.
An ITU-T recommendation detailing a 16-Kbps 3.4-KHz bandwidth audio coding algorithm known as LD-CELP or low-delay code excited linear prediction. Part of the H.320 and H.323 codec recommendations. Produces good speech intelligibility and is a good choice for videoconferencing operating at 112- or 128-Kbps aggregate transmission rates. Appendix I includes frame- or packet-loss concealment methods for VoIP and similar applications.
Describes a 16 kbps low-delay variation of CELP voice compression. CELP voice coding must be translated into a public telephony format for delivery to or through the PSTN. Described in the ITU-T standard in its G-series recommendations.
ITU-T recommendation for speech coding at 16 kbit/s using low-delay code excited linear prediction. http://www.itu.int/rec/recommendation.asp?type=folders&lang=e&parent=T-REC-G.728
Another low-bitrate audio encoding algorithm. Using a standard analysis-by-synthesis CELP method, G.728 provides toll-quality speech at 16 Kbps.
This vocoder, sometimes known by the abbreviation LD-CELP (Low-Delay Code Excited Linear Prediction), is used in some VoIP gateways. It has a bit rate of 16 Kbits/second.
is an optional audio representation used in H.320, providing roughly 3.5-KHz frequency response in a 16,000-bit communication channel.
3KHz audio compression at 16Kbps (wideband audio).
Low Delay Code Excited Linear Predictive (LD-CELP). A 16k codec. G.728 is primarily intended for Digital Circuit Multiplication Equipment (DCME) and so features a low transcoding delay in order to avoid the creation of telephony sidetone echo. It is also becoming a defacto standard for videoconferencing audio.
audio coding standard providing voice quality (300 Hz to 3400 Hz) at 16 kbps.
16 kbps LD-CELP codec (medium quality, medium bandwidth, very high processor load)
16kbps voice compression algorithm .
An ITU-T low delay CELP codec (16 kbps, medium quality, very high processor load).
An ITU-T Recommendation for audio encoding using Low Delay Code Excited Linear Prediction (CELP). The bandwidth of the analog audio signal is 3.4 kHz whereas after coding and compression the digitized signal requires a bandwidth of 16 kbps.
Audio compression at 16 Kbps, for low bandwidth calls (128Kbps); can be a-law or u-law. Part of the H.320 standard.
ITU-TSS recommendation "Coding of Speech at 16 kbps Using Low-Delay Code Excited Linear Prediction"; Audio standard requiring a data rate 16 kbit/s and providing an audio bandwidth 300 ... 3400 Hz.
G.728 is a ITU-T standard for speech coding operating at 16 kbit/s. Technology used is LD-CELP, Low Delay Code Excited Linear Prediction. Delay of the codec is only 5 samples (0.625 ms).