Google搜尋有時真的讓人冒一把冷汗...
Adaptive Multi-Rate audio codec - Wikipedia, the free encyclopedia 馬塞克後面是什麼阿??? The Adaptive Multi-Rate (AMR or AMR-NB or GSM-AMR) audio codec is an audio compression format optimized for speech coding. AMR speech codec consists of a multi-rate narrowband speech codec that encodes narrowband (200–3400 Hz) signals at variable bit rate...
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