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AMR → AAC
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Upload an AMR audio file and save it as AAC for players, messengers, editing, publishing or archiving.
AMR is a sound file format with a specific focus. Created a long time ago, before the advent of MP3. some sources call the developer Ericsson. The name of the format is an abbreviation for Adaptive Multi Rate. Sound files of this format are intended for mobile devices and in GSM cellular networks. Using this format provides a small file size due to the technology of signal coding in the speech frequency range. Effectively compressing audio recordings of human speech makes this format often used in voice recorders on mobile phones, for voice recordings, and for MMS messages.
AAC is a sound encoded file format developed by Fraunhofer IIS, AT&T, Dolby and Sony. Its name stands for Advanced Audio Coding. The AAC format is an industry standard and was created as an improved alternative to the most common MP3 audio file format. AAC files do have slightly improved features compared to MP3s. Let's say this format provides the opportunity for improved processing of frequencies above 16 kHz. At the same time, the sound quality of AAC files is closer to the original sound source.
Supported formats
This converter shows the accepted source formats and the result format.
Input files
AMR
FLAC
MP2
MP3
MPGA
WAV
OGG
WMA
M4A
M4P
M4R
AC3
MID
MIDI
AIF
AIFF
OGA
CAF
MPC
MKA
VOC
3GA
RA
RM
OPUS
MMF
KAR
EAC3
IMY
AWB
MXMF
OTA
RTTTL
RTX
XMF
Result
AAC
A damaged file or a non-standard codec can still fail even when the extension is supported.
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