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Internet Low Bitrate Codec (iLBC) is a royalty-free narrowband speech audio coding format and an open-source reference implementation (codec), developed by Global IP Solutions (GIPS) formerly Global IP Sound (acquired by Google Inc in 2011). It was formerly freeware with limitations on commercial use, but since 2011 it is available under a free software/open source (3-clause BSD license) license as a part of the open source WebRTC project. It is suitable for VoIP applications, streaming audio, archival and messaging. The algorithm is a version of block-independent linear predictive coding, with the choice of data frame lengths of 20 and 30 milliseconds. The encoded blocks have to be encapsulated in a suitable protocol for transport, usually the Real-time Transport Protocol (RTP).

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rdf:type
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  • Internet Low Bitrate Codec (cs)
  • Internet Low Bitrate Codec (de)
  • Internet Low Bitrate Codec (en)
  • Internet Low Bit Rate Codec (it)
  • ILBC (ko)
  • Internet Low Bitrate Codec (ja)
  • Internet Low Bit Rate Codec (pl)
  • ILBC (ru)
  • 互联网低比特率编解码器 (zh)
rdfs:comment
  • Internet Low Bitrate Codec (ILBC) je ztrátový open source kodek pro kompresi hlasu, který se hojně používá ve VoIP. Používá bitrate 15,2 nebo 13,3 kbit/s, vzorkovací kmitočet 8 kHz a podporuje PLC. Je to CBR Constant BitRate kodek (nepodporuje VBR). (cs)
  • Der internet Low Bitrate Codec (iLBC) ist ein offen dokumentierter, lizenzgebührenfreier Sprachcodec, der von Global IP Solutions (GIPS) entwickelt worden ist. Er hebt sich von älteren Codecs insbesondere dadurch ab, dass er speziell für paketvermittelte Datennetze wie etwa das Internet konzipiert worden ist und daher sehr gut mit Paketverlust und Jitter zurechtkommt. iLBC ist folglich insbesondere für VoIP geeignet. (de)
  • 인터넷 저 비트레이트 부호화(Internet Low Bitrate Coding)은 (GIPS)이 개발한 오픈 소스 무특허 협대역 음성 코덱이다. iLBC는 2002년 IETF에 제출되었으며 최종 사양은 2004년에 출판되었다. (ko)
  • Internet Low Bitrate Codec あるいは iLBC は、ロイヤリティフリーのナローバンド音声符号化方式で、米国の Global IP Solutions 社（旧 Global IP Sound 社）が VoIP などのために開発した。 他の方式と比べパケットロスの多いIPネットワークでも音質の低下が少ない特徴がある。 iLBC は、Gizmo5、Ekiga、QuteCom、Google トーク、Yahoo! Messengerなどでの音声コーデックの1つとして使われている。 (ja)
  • Internet Low Bit Rate Codec (iLBC) – kodek przeznaczony do połączeń o małej przepustowości oparty ma modelu licencjonowania royalty free. Kodek ten jest rozwijany przez Global IP Sound (GIPS). Jest to jeden z kodeków używanych przez Skype. (pl)
  • iLBC (internet Low Bitrate Codec) — это свободный от лицензионных отчислений кодек для голосовой связи через интернет. Кодек предназначен для узкополосных интернет-каналов, со скоростью передачи аудиосигнала (человеческой речи) 13.33 кбит/с при длине кадра в 30 мс или 15.20 кбит/с при 20 мс. Кодек iLBC позволяет добиться хорошего качества передачи аудиосигнала даже при некоторых искажениях, которые происходят в связи с потерей или задержкой пакетов. iLBC описан в стандарте в RFC 3951. Это один из кодеков, который используется в Gizmo5, Ekiga, , Google Talk, Skype и Yahoo! Messenger. (ru)
  • 互联网低比特率编解码器，或称互联网低码率编解码器（Internet Low Bitrate Codec，iLBC）是一个开源的買斷式授權的语音编解码器及参考实现，由Global IP Solutions（GIPS）开发（前身为Global IP Sound，2011年被Google公司收入囊中）。它以前是限制商业使用的免费软件，但从2011年开始，它可用于自由软件/开源许可（3BSD许可证）——作为WebRTC开源项目的一部分。它适合用于VoIP应用程序、流媒体音频，以及文档和消息通信。该算法是一个线性预测编码的独立块版本，选择了长度20、30毫秒的数据帧。编码的块必须封装在一个合适的传输协议中，通常是实时传输协议（RTP）。 iLBC能以良好的语音质量处理丢帧。丢帧通常因连接丢失或者IP数据包延迟而发生。普通的低码率编解码器依赖语音帧之间的关系，这会导致数据包丢失或延迟时出错。与此相反，iLBC编码的语音帧是相互独立的，所以不会遇到此问题。 iLBC定义于RFC 3951。它被许多软件用作编解码器，包括：、WebRTC、、Google Talk、 （于Nokia N800/N810）、、、Tuenti, Yahoo! Messenger、等。 iLBC于2002年提交IETF，并于2004年发布最终规范。 (zh)
  • Internet Low Bitrate Codec (iLBC) is a royalty-free narrowband speech audio coding format and an open-source reference implementation (codec), developed by Global IP Solutions (GIPS) formerly Global IP Sound (acquired by Google Inc in 2011). It was formerly freeware with limitations on commercial use, but since 2011 it is available under a free software/open source (3-clause BSD license) license as a part of the open source WebRTC project. It is suitable for VoIP applications, streaming audio, archival and messaging. The algorithm is a version of block-independent linear predictive coding, with the choice of data frame lengths of 20 and 30 milliseconds. The encoded blocks have to be encapsulated in a suitable protocol for transport, usually the Real-time Transport Protocol (RTP). (en)
  • Internet Low Bitrate Codec (iLBC) è un codec open source libero da royalty, sviluppato dalla Global IP Solutions (GIPS), ex Global IP Sound (acquisita da Google nel 2011). Fu, in passato, licenziata come freeware e con un uso commerciale limitato, ma dal 2011 è disponibile sotto licenza BSD come facente parte del progetto WebRTC. È disponibile per applicazioni VoIP, audio streaming, archivio e messaggistica. (it)
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  • iLBC Speech Coder (en)
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  • Internet Low Bit Rate Codec (en)
  • iLBC Speech Coder (en)
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