Konversikan AMR ke M4A secara online, gratis.
Dengan melanjutkan, Anda menyetujui Ketentuan Penggunaan kami.
Cukup unggah file SUMBER Anda dan klik tombol konversi. Anda juga dapat mengonversi format AMR ke M4A secara batch.
Kami menggunakan perangkat lunak sumber terbuka dan khusus untuk memastikan konversi kami memiliki kualitas terbaik. Dalam kebanyakan kasus, Anda dapat menyempurnakan parameter konversi menggunakan “Pengaturan Lanjutan” (opsional, cari ikon).
Konverter SUMBER ke M4A kami gratis dan berfungsi di browser web apa pun. Kami menjamin keamanan dan privasi file. File dilindungi dengan enkripsi SSL 256-bit dan dihapus secara otomatis setelah beberapa jam.
Adaptive Multi-Rate (AMR) is a compressed audio file that is often used for speech coding. The AMR speech codec focuses on narrowband signals, which makes it ideal for voice recordings and radio. It is used regularly in Global System for Mobile Communications (GSM) and Universal Mobile Telecommunications System (UMTS).
Since AMR files are often used on mobile phones, including for MMS messaging, most 3G mobile devices are able to open them. AMR also opens with VLC media player, QuickTime, RealPlayer, and Xine.
Other software, such as the free audio-editing software Audacity, can open AMR files. Download audacity easily at SourceForge.net. Because AMR files are heavily compressed and focused on narrowband signals, they are not suitable for music files.
Developed by: 3rd Generation Partnership Project (3GPP)
Initial Release: 1999
Useful links:
https://en.wikipedia.org/wiki/Adaptive_Multi-Rate_audio_codec
MPEG 4 Audio (M4A) compresses and encodes audio files by using one of two coder-decoder algorithms: Advanced Audio Coding (AAC) or Apple Lossless Audio Codec (ALAC). M4A files are smaller in size while simultaneously better in quality than MP3 files, with which it shares the most similarities, in comparison to all other audio file formats.
M4A files open in most well-known, audio-playback programs, including iTunes, QuickTime, and Windows Media Player. For Apple users, iTunes is the default program to open M4A files. For Windows users, the default program is Windows Media Player. Users can also preview M4A files by highlighting the file and pressing the spacebar.
Additionally, M4A opens in VLC media player, Adobe Premiere Pro, Elmedia Player, Winamp, and a host of other programs.
Developed by: ISO/IEC, Moving Pictures Experts Group
Initial Release: 2001
Useful links:
https://en.wikipedia.org/wiki/MPEG-4_Part_14
https://www.loc.gov/preservation/digital/formats/fdd/fdd000037.shtml
FreeConvert.com dapat mengonversi file Anda yang lain ke format M4A :
FreeConvert.com dapat mengonversi file AMR Anda ke format lain berikut:
Di FreeConvert, kami tidak hanya mengonversi file—kami juga melindunginya. Kerangka kerja keamanan kami yang tangguh memastikan bahwa data Anda selalu aman, baik saat mengonversi gambar, video, atau dokumen. Dengan enkripsi tingkat lanjut, pusat data yang aman, dan pemantauan yang cermat, kami telah menangani setiap aspek keamanan data Anda.
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