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Adaptive Multi-Rate audio codec - Wikipedia
https://en.wikipedia.org/wiki/Adaptive_Multi-Rate_audio_codec#:~:text=The%20Adaptive%20Multi-Rate%20%28AMR%2C%20AMR-NB%20or%20GSM-AMR%29%20audio,with%20toll%20quality%20speech%20starting%20at%207.4%20kbit%2Fs.
android - Record audio in AMR file format - Stack Overflow
https://stackoverflow.com/questions/26675988/record-audio-in-amr-file-format
So bellow code is working for Recording in AMR format: outputFile = Environment.getExternalStorageDirectory().getAbsolutePath() + "Sample.amr"; myRecorder = new MediaRecorder(); myRecorder.setAudioSource(MediaRecorder.AudioSource.MIC); myRecorder.setOutputFormat(MediaRecorder.OutputFormat.AMR_NB); …
Top 5 Best AMR Recorder Tool Available For all Operating ...
https://www.free-videoconverter.net/screen-recording/amr-recorder/
Get to know the Basics About the AMR Format Recorder Apps. AMR or also known as Adaptive Multi-Rate is a lossy format. This type of file contains voice recording, MMS messages and such. It was made specifically for 3G phones only but now you can open it with the other media player that supports this format. Moreover, users encounter trouble choosing what …
ios - How can I record AMR audio format on the iPhone ...
https://stackoverflow.com/questions/276644/how-can-i-record-amr-audio-format-on-the-iphone
AMR codec is NOT supported for encoding/recording on the iPhone, albeit it is supported for playback: this is the reason the kAudioFormatAMR constant exists. Official api says that supported encoding formats are: ALAC (Apple Lossless) ~> kAudioFormatAppleLossless; iLBC (internet Low Bitrate Codec, for speech) ~> kAudioFormatiLBC
PROPERTIES OF RECORDINGS AND AUDIO FILES …
http://www.forensicscience.pl/pfs/109_Michalek_m.pdf
One of the commonly used formats for recording audio on mobile devices is Adaptive Multi-Rate (AMR). It was primarily de-signed to transmit and store speech, although it can also be used to record other acoustic signals. AMR file format is mainly used for recording audio on mobile phones with a voice recorder function.
AMR Player, Free AMR audio player and AMR to MP3 or …
http://www.amrplayer.com/
AMR is an audio format which is extensively used in mobile devices in various applications ranging from normal audio player/recorder to VoIP kind of applications. AMR can be further categorized as: AMR-NB ( NarrowBand ) and AMR-WB ( WideBand ).
Convert AMR mobile voice recording into MP3
http://www.tothepc.com/archives/convert-amr-mobile-voice-recording-into-mp3/
For starters, AMR is a compressed audio format developed by Ericsson. It is used by many 3G cell phones for voice recordings such as MMS messages and incorporates the Algebraic Code Excited Linear Prediction (ACELP) algorithm.
AMR to MP3 (Online & Free) — Convertio
https://convertio.co/amr-mp3/
Adaptive Multi Rate. This format was originally intended for voice compression and is able to change the bit rates of encoded audio data. AMR is actively used for encoding and decoding voice while its being transmitted over network channels. The format allows one to consider network capacity and adapt it to channel loads.
Best format to record your audio in. Indepth artcile on ...
https://www.audioshapers.com/blog/bestaudio-recording-format.html
So for recording audio always record in wav/aiff at 44,100 Hz and 16 bit. That will give you the perfect quality. That will give you the perfect quality. If you need to encode/record in mp3, at least 196kbps is minimum for a decent quality.
Comparison of audio coding formats - Wikipedia
https://en.wikipedia.org/wiki/Comparison_of_audio_coding_formats
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