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Adaptive Multi-Rate Wideband - Wikipedia
https://en.wikipedia.org/wiki/Adaptive_Multi-Rate_Wideband
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 code-excited linear prediction (ACELP). AMR-WB provides improved speech quality due to a wider speech bandwidth of 50–7000 Hz compared to narrowband speech coders which in general …
java - How to read and modify amr audio file data? - Stack ...
https://stackoverflow.com/questions/11087207/how-to-read-and-modify-amr-audio-file-data
Each audio frame is 20 ms long and has and the sample rate is given in the header of each frame. so to read the sample rate for the first frame, you need to read the 7th byte in the file. Take the 7th byte and shift it right 3 bits, and mask out the lower 4 bits of the new value.
Howto:Convert wave files in to G722 ... - innovaphone-wiki
https://wiki.innovaphone.com/index.php?title=Howto:Convert_wave_files_in_to_G722_coder_files
Conversion of a wav-sample into a g722-coded audio file (this is the only supported by innovaphone devices G722 codec at the moment) ffmpeg -i /tmp/sample.wav -ar 16000 -acodec g722 /tmp/sample.g722 Conversion of a wav-sample into a g722.2 AMR-NB-coded audio file
MP3 to AMR (Online & Free) - Convertio — File Converter
https://convertio.co/mp3-amr/
Convert your mp3 files to amr online & free. Audio Converter. Choose Files. Choose Files. Drop files here. 100 MB maximum file size or Sign Up. Image. Document. EBook. Audio.
AMR Player, Free AMR audio player and AMR to MP3 or …
http://www.amrplayer.com/
Free AMR audio player software - AMR Player. AMR Player is one freeware to let you can play the AMR audio files on your PC, and support to convert common multimedia file formats ( such as MP3 or WAV) to audio AMR/AWB format, or output AMR audio files to MP3/WAV audio format. The usage of AMR Player is very simple, click "Add Files" button of ...
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