![]() You have to select an output folder from the File Location. Now you have to select the M4A audio format (or your desired output audio format) and your output file's quality. A pop-up window will appear where you have to go to the Audio. Now go to the Output Format at the bottom of the window from the drop-down tab. Then you have to click on the Add Files button at the center of the window to import your file or files. And for your better understanding, we have demonstrated to you the steps in the following from a Windows PC: Step 1 Import your audio file or files.Īt first, you have to click on the Audio Converter from the navigation panel of the left side. Wondershare UniConverter is the most user-friendly software available in the market for you to convert any file of AMR format to M4A format. Industry-leading APEXTRANS technology converts videos with zero quality loss or video compression And you can also learn them very merely within a short period of time. There are various other features of the Wondershare UniConverter software, as it is more than enough to fulfill all your requirements. It offers you more than 1000 types of formats to work with! It allows you to convert audio, download audio, compress your audio, trim or merge audio files, etc. Here you can work with images, GIFs, audio, DVDs, and many more. Wondershare UniConverter (originally Wondershare Video Converter Ultimate) is the most famous and the easiest to use. You must have heard about the Wondershare UniConverter software. To learn how to convert AMR to M4A format, read further. So, you need those files to convert AMR to M4A format. But AMR files are not compatible with your PC. Many individuals nowadays compress their MP3 files into the most efficiently compressed AMR format to store those files. But we also don't wish to delete our old audio collections. Maybe it is in our smartphone on our personal computer. These days many of us are dealing with a shortage of storage. The M4A files can be played in Windows Media Player or by VLC player, but the files with AMR format cannot be opened on Windows personal computers. But when it is converted to AMR format, the sound quality decreases. Though both AMR and M4A are lossy compressed audio formats, there are still some differences between them: The bitrate remains the same when converted from MP3 to M4A, and the sound quality does not change. AMR is mostly compatible with portable devices like smartphones or your MP3 player. whereas AMR-WB is used for higher bitrates like 6.60 kbps, 8.85 kbps, 23.85 kbps, etc. AMR-NB is used for low bitrates like 4.75 KBS, 5.15 kbps, 12.20 kbps, etc. There are two AMR format types: AMR-NB (Narrowband) and AMR-WB (Wideband). It is significantly used to compress audio files' sizes effectively than other formats like MP3, AAC, or WMA for storage management purposes. It is generally used to store speech recorded files. It is a compressed audio codec format that was released in 1999. If you are looking for the same, go along with this article and get to know about it. So, we need to convert the AMR files to M4A format by an AMR to M4A converter. ![]() Audios in AMR format are very highly compressed, due to which the pleasant sound quality of audio files decreases. ![]() The AMR format is used to store spoken audio recordings but cannot give ideal results for any other audio files. The AMR and M4A are the compressed codec audio formats. Some of them are WAV, DSS, FLAC, ALAC, AIFF, PCM, MP3, OGG and many more. M4A is often compressed using AAC encoding (lossy) but can also be in Apple Lossless format.As you all know, there are dozens of audio formats available for us. This is especially true of non-protected content. Sampling frequency 8 kHz/13-bit (160 samples for 20 ms frames), filtered to 200-3400 Hz.Īudio-only MPEG-4 files generally have a. M4A stands for MPEG 4 Audio and is a filename extension used to represent audio files.ĪMR speech codec consists of a multi-rate narrowband speech codec that encodes narrowband (200-3400 Hz) signals at variable bit rates ranging from 4.75 to 12.2 kbit/s with toll quality speech starting at 7.4 kbit/s. However, it can also be used to store other data such as subtitles and still images. MPEG-4 Part 14 or MP4 is a digital multimedia container format most commonly used to store video and audio. AMR was adopted as the standard speech codec by 3GPP in October 1999 and is now widely used in GSM and UMTS. The Adaptive Multi-Rate (AMR or AMR-NB or GSM-AMR) audio codec is an audio compression format optimized for speech coding. International Organization for Standardization
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