When you are using your cellular device to record sound or voice, there are chances that the recorded files will be generated in AMR format (Adaptive Multi-Rate sound codec). Never heard of it? Please read on. This post will focus on the information about AMR and provide you the tool if you need toconvert AMR to MP3 on Mac.
What is AMR
AMR stands for Adaptive Multi-Rate sound codec, which is firstly developed by Ericsson. Based on AMR, AMR-WB (Adaptive Multi-Rate Wideband) is developed. AMR is a codec that is widely used for speech and sound recording on 3G (third-generation) mobiles devices. It is a hybrid of speech codes to transmit speech parameters as well as waveform signals. It is also a preferred codec for GSM (Global System for Mobile Communications) standards. When you record audio via the mobile phone’s audio recorder feature, the recording has a great chance to be saved in AMR, by default.
Part 2: How to Convert AMR to MP3 with MediaHuman Audio Converter. Unlike Leawo Video Converter, MediaHuman Audio Converter is a dedicated audio converter tool that can be used to convert AMR to MP3. The audio converter program is free, and is available on both Windows and Mac platform. Trusted Windows (PC) download Free AMR To MP3 Converter 2.0. Virus-free and 100% clean download. Get Free AMR To MP3 Converter alternative downloads. Trusted Windows (PC) download AMR to MP3 Converter 1.4. Virus-free and 100% clean download. Get AMR to MP3 Converter alternative downloads.
AMR’s Advantages
- AMR can be tailored to fit various needs of the operators;
- AMR can improve speech quality via codec mode adaptation;
- AMR provides better power control and improved handover compared to most other codecs;
- AMR has higher compression rate, taking up less precious space on mobile devices;
- AMR has increased resistance to interference & errors.
Why Convert AMR to MP3
Despite all these benefits above, AMR still has one drawback that drags its usability down – compatibility. AMR is too compressed that it can’t be used by other media player apps on your Mac, like iTunes; popular devices like iPad and iPhone can’t recognize it either. No matter how much space it spares you, you have to convert it to a more acceptable format like MP3, for easier sharing with friends or posting on your social account.
There are many online and offline tools to convert AMR to MP3 for PC users but Mac users may have to buy an application to do the AMR to MP3 conversion job. Forget about those paid app because continue to read and you will get a completely free solution on how to convert AMR to MP3 on Mac.
Best Ways to Convert AMR to MP3 on Mac
Best Mp3 Converter Free Download
ALL2MP3 for Mac (Recommended)
All2MP3 for Mac is the most famous media-to-MP3 converter on Mac OS, which has been used by millions of users for years. Its greatest feature is to convert almost source media files in any formats to MP3, including audio formats like AMR, WAV, WMA, AAC, M4A, M4B, OGG, FLAC, ALAC, etc. and video formats like MP4, AVI, WMV, MKV, FLV, 4K, etc. Working as an AMR to MP3 converter on Mac is a part of ALL2MP3 for Mac’s duties.
Why should you choose All2MP3 for Mac instead of other similar products?
- It is the easiest for both inexperienced and pros.
- It provides drag-and-drop utility.
- It is the fastest and can handle large size files.
- It can batch convert audio to MP3.
- All media formats supported.
- Output quality and output location can be adjusted.
- It is 100% free without any adware or hidden cost.
How to Convert AMR to MP3 on Mac
Step 1
Click the above download button to get All2MP3 for Mac downloaded first, then launch and install it. Drag the AMR files to the program window.
Step 2
Then you will see a new window with several options: “Quality” is to choose quality level; “Change all Paths” is to choose output folder; “Reset” is to restore your settings; “Add” is to input more files; “Trash files after conversion” is to delete source files after conversion.
Step 3
After that, a simple click of “Convert” button will get the process started.
Alternatives
Online Audio Converter
When you need to convert a small AMR file immediately instead of searching, downloading and installing software, using online audio converter can be a good option. But you need to notice that some of the online converters do not support AMR format. Google “online audio converter” and look for the service that fits your need. Usually you need to upload the AMR file, choose the format you want, and start conversion. Then, wait for their server to process the audio conversion and finally, hit the download link they offer to download the converted files in the target format.
It is not an efficient way to batch convert files or convert heavy-sized files; it also has many limitations in files size, length, etc. So, we recommend you install All2MP3 for Mac to solve the problem once and for all.
What is Adaptive Multi-Rate (AMR)
Adaptive Multi-Rate (AMR) is an audio data compression scheme optimized for speech coding. AMR was adopted as the standard speech codec by 3GPP in October 1998 and is now widely used in GSM and UMTS. It uses link adaptation to select from one of eight different bit rates based on link conditions.
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 ).
AMR-WB ensures that speech quality is optimized in a mobile station by verifying its ability to determine when to request a change to another codec with either more or less error correction and protection as signal quality changes. AMR-NB (Adaptive Multi-Rate Narrowband) is a vocoder employed in low-bitrate applications like mobile phones.
AMR is also a file format for storing spoken audio using the AMR codec. Many modern mobile telephone handsets will allow you to store short recordings in the AMR format, it should be remembered that AMR is a speech format and is unlikely to give ideal results for other audio. The common filename extension is .amr.
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 the main interface, select the one '.amr' file, then click 'Play' button, AMR Player can decode the AMR audio file, then play the audio/music for you. If you want to convert AMR to MP3 format, just select one AMR files that you had added, click 'AMR to MP3', input one MP3 file name, the free program can convert your AMR files at once, both MP3 and WAV are popular audio formats.
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Download
The latest version of AMR Player is 1.3 (some small bugs fixed), it is one %100 free software, no adware or no spyware, and you can download here:Main Features about AMR Player
- Simple interface and easy to use;
- Support both AMR-NB and AMR-WB audio formats;
- Convert MP3 to AMR;
- Convert WAV to AMR;
- Convert AMR to MP3;
- Convert AMR to WAV;
- '100% Free', this software is freeware for both personal and commercial use.
Declare
This program use FFmpeg as a standalone command line tool, but not use any source code from FFmpeg project.FFmpeg is licensed under the GNU Lesser General Public License (LGPL) version 2.1 or later, FFmpeg is a trademark of Fabrice Bellard, originator of the FFmpeg project ((fmpeg.org).
The build FFmpeg inclued in this program come from Automated FFmpeg Builds (ffmpeg.arrozcru.org/autobuilds), static builds: source and static w32 (2011-01-17).
AMR Player's license is Freeware, is free for both personal and commercial use.