Convert H264 to AMR
Total Audio MP3 Converter converts H264 files to AMR format.
The software is an all in one audio converter that supports more than 90 audio
and video files as input, and converts to popular formats such as MP3, WAV, AAC,
M4A, OGG, WMA, and AMR.
Total Audio MP3 Converter also supports batch conversion, and is full compatible
with Vista and Windows
- Free Download
Total Audio MP3 Converter here and then install the software
- Launch Total Audio MP3 Converter
- Choose H264 Files
Click "Add Files" to choose H264 files and then add them to conversion
Choose one or more H264 files you want to convert and then click Open.
- Choose "to AMR"
- Convert H264 to AMR
Click button "Convert" to convert all H264 files to AMR format.
The software is converting H264 files to AMR format.
- Play & Browse
When conversion completes, you could right-click converted item and choose "Play
Destination" to play the destination file; or choose "Browse Destination
Folder" to open Windows Explorer to browse the destination file.
What is H264?
H.264 is a standard for video compression, and is equivalent to MPEG-4 Part 10,
or MPEG-4 AVC (for Advanced Video Coding). As of 2008, it is the latest block-oriented
motion-compensation-based codec standard developed by the ITU-T Video Coding Experts
Group (VCEG) together with the ISO/IEC Moving Picture Experts Group (MPEG), and
it was the product of a partnership effort known as the Joint Video Team (JVT).
The ITU-T H.264 standard and the ISO/IEC MPEG-4 Part 10 standard (formally, ISO/IEC
14496-10) are jointly maintained so that they have identical technical content.
The final drafting work on the first version of the standard was completed in
What is 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 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. There also exists
another storage format for AMR that is suitable for applications with more advanced
demands on the storage format, like random access or synchronization with video.
This format is the 3GPP-specified 3GP container format based on ISO base media
- Sampling frequency 8 kHz/13-bit (160 samples for 20 ms frames), filtered to
- The AMR codec uses eight source codecs with bit-rates of 12.2, 10.2, 7.95,
7.40, 6.70, 5.90, 5.15 and 4.75 kbit/s.
- Generates frame length of 95, 103, 118, 134, 148, 159, 204, or 244 bits for
bit rates 4.75, 5.15, 5.90, 6.70, 7.40, 7.95, 10.2, or 12.2 kbit/s, respectively
- AMR utilizes Discontinuous Transmission (DTX), with Voice Activity Detection
(VAD) and Comfort Noise Generation (CNG) to reduce bandwidth usage during silence
- Algorithmic delay is 20 ms per frame. For bit-rates of 12.2, there is no 'algorithm'
look-ahead delay. For other rates, look-ahead delay is 5 ms. Note that there is
5 ms 'dummy' look-ahead delay, to allow seamless frame-wise mode switching with
the rest of rates.
- AMR is a hybrid speech coder which uses Algebraic Code Excited Linear Prediction
- The complexity of the algorithm is rated at 5, using a relative scale where
G.711 is 1 and G.729a is 15.
- PSQM testing under ideal conditions yields Mean Opinion Scores of 4.14 for
AMR (12.2 kbit/s), compared to 4.45 for G.711 (u-law)
- PSQM testing under network stress yields Mean Opinion Scores of 3.79 for AMR
(12.2 kbit/s), compared to 4.13 for G.711 (u-law)
Convert H264 to AMR Related Topics:
IT to AMR,
SWF to AMR,
AMR to WAV,
WAVE64 to AMR,
RPL to AMR,
FLIC to AMR,
EVOB to AMR,
NUV to AMR,
TS to AMR,
CD to AMR,
DAT to AMR,
M4B to AMR,
OGG to AMR,
AMR to M4B,
3GP2 to AMR,
WMA to AMR,
OGV to AMR,
MP4 to AMR,
SMK to AMR,
AU to AMR,
VMD to AMR,
MP3 to AMR,
H264 to AMR,
QT to AMR,
MP2 to AMR,
XA to AMR,
OMA to AMR,
VID to AMR,
QCP to AMR,
FLAC to AMR,
DIF to AMR,
AMR to M4A,
MTV to AMR,
MLP to AMR,
ULAW to AMR,
M1A to AMR,
MJ2 to AMR,
4XM to AMR,
WM to AMR