Convert AMR Online

 

AMR - Adaptive Multi-Rate

Format introduction:

The Adaptive Multi-Rate (AMR or AMR-NB or GSM-AMR) audio codec is an audio compression format optimized for speech coding. AMR was adopted as the standard speech codec by 3GPP in October 1999 and is now widely used in GSM and UMTS.

Technical details:

AMR 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. Sampling frequency 8 kHz/13-bit (160 samples for 20 ms frames), filtered to 200-3400 Hz.

 

File extension .amr, .3ga
MIME audio/amr
Developed by 3GPP
Type of format Audio compression format
Associated programs Audacity, FFmpeg, MPlayer, QuickTime, VLC media player
Sample file sample.amr
Wiki AMR on Wikipedia

 

The list shows what formats can convert to AMR and what formats can be converted from AMR.

Click on a link below to start a specific conversion.

# Conversion Position Type
1 AMR to MP3 convert from AMR convert audio to audio
2 AMR to WAV convert from AMR convert audio to audio
3 AMR to OGG convert from AMR convert audio to audio
4 AMR to WMA convert from AMR convert audio to audio
5 AMR to AAC convert from AMR convert audio to audio
6 AMR to FLAC convert from AMR convert audio to audio
7 AMR to M4A convert from AMR convert audio to audio
8 AMR to AIFF convert from AMR convert audio to audio
9 AMR to OPUS convert from AMR convert audio to audio
10 AVI to AMR convert to AMR convert video to audio
11 MPEG to AMR convert to AMR convert video to audio
12 WMV to AMR convert to AMR convert video to audio
13 MP4 to AMR convert to AMR convert video to audio
14 MKV to AMR convert to AMR convert video to audio
15 M2TS to AMR convert to AMR convert video to audio
16 WEBM to AMR convert to AMR convert video to audio
17 FLV to AMR convert to AMR convert video to audio
18 SWF to AMR convert to AMR convert video to audio
19 ASF to AMR convert to AMR convert video to audio
20 MOV to AMR convert to AMR convert video to audio
21 M4V to AMR convert to AMR convert video to audio
22 RM to AMR convert to AMR convert video to audio
23 VOB to AMR convert to AMR convert video to audio
24 OGV to AMR convert to AMR convert video to audio
25 MP3 to AMR convert to AMR convert audio to audio
26 WAV to AMR convert to AMR convert audio to audio
27 OGG to AMR convert to AMR convert audio to audio
28 WMA to AMR convert to AMR convert audio to audio
29 AAC to AMR convert to AMR convert audio to audio
30 FLAC to AMR convert to AMR convert audio to audio
31 M4A to AMR convert to AMR convert audio to audio
32 AIFF to AMR convert to AMR convert audio to audio
33 OPUS to AMR convert to AMR convert audio to audio

List of unpopular conversions supported:

Convert from AMR: AMR to AU, AMR to MKA, AMR to RA.
Convert to AMR: 3GP to AMR, M2V to AMR, AU to AMR, MKA to AMR, RA to AMR.