Adaptive Multi-Rate Wideband (AMR-WB) is a patented wideband speech audio coding standard developed based on Adaptive Multi-Rate encoding, using a similar methodology to algebraic …

The Adaptive Multi-Rate (AMR, AMR-NB or GSM-AMR) audio codec is an audio compression format optimized for speech coding. AMR is a multi-rate narrowband speech codec that …

Extended Adaptive Multi-Rate – Wideband (AMR-WB+) is an audio codec that extends AMR-WB. It adds support for stereo signals and higher sampling rates. Another main improvement is the …

2021年8月10日 · Format Description for AMR-WB -- Audio data compression scheme optimized for speech coding in GSM (Global System for Mobile Communications) and UMTS (Universal …

The AMR-WB speech codec has been specified in 3GPP Release 5 in a set of publicly available technical specifications [see section 3.4.1]. The goal was to extend the Multirate/Multimode …

As an extension of the AMR-WB standard, the AMR-WB+ audio codec combines advanced audio coding technology with unrivaled speech coding technology, allowing service providers to …

2022年3月14日 · 文章浏览阅读1.6w次，点赞10次，收藏38次。首先明白什么是Amr-Nb和Amr-wb?一、什么是AMR、AMR-WB全称Adaptive Multi-Rate和Adaptive Multi-Rate Wideband， …

2020年7月9日 · AMR-WB: Unlike AMR_NB, the speech bandwidth of Adaptive Multi-rate wide band is 50–7000 Hz. AMR-WB is said to be a patented wideband speech audio coding …

AMR-WB was developed by Nokia and VoiceAge, and it was first specified by 3GPP. AMR-WB is codified as G.722.2, an ITU-T standard speech codec, formally known as Wideband coding of …

The adoption of AMR-WB by ITU-T is of significant importance since for the first time the same codec is adopted for wireless as well as wireline services. AMR-WB uses an extended audio …