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Convert DAT to AMR
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Total Audio MP3 Converter converts DAT 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
7.
- Free Download
Total Audio MP3 Converter here and then install the software
by instructions
- Launch Total Audio MP3 Converter
- Choose DAT Files
Click "Add Files" to choose DAT files and then add them to conversion
list.
Choose one or more DAT files you want to convert and then click Open.
- Choose "to AMR"
- Convert DAT to AMR
Click button "Convert" to convert all DAT files to AMR format.
The software is converting DAT 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.
Top
What is DAT?
Video CD (VCD) MPEG-1 movie file. Overall picture quality is intended to be comparable
to VHS video. Poorly compressed VCD video can sometimes be lower quality than
VHS video, but VCD exhibits block artifacts rather than analog noise, like VHS
does, and does not deteriorate further with each use.
352x240 (or SIF) resolution was chosen because it is half the vertical, and
half the horizontal resolution of NTSC video. 352x288 is similarly one quarter
PAL/SECAM resolution. This approximates the (overall) resolution of an analog
VHS tape, which, although it has double the number of (vertical) scan lines, has
a much lower horizontal resolution.
VCD video is mostly compatible with the DVD-Video standard, except for any
video encoded at 23.976 frames per second, which must use 3:2 pulldown.
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
file format.
Key Features:
- Sampling frequency 8 kHz/13-bit (160 samples for 20 ms frames), filtered to
200-3400 Hz.
- 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
periods
- 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
(ACELP)
- 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 DAT to AMR Related Topics:
DVR-MS to AMR,
WV to AMR,
ALAC to AMR,
AMR to M4A,
MP1 to AMR,
WAVE64 to AMR,
XVID to AMR,
MP4 to AMR,
NSA to AMR,
MLP to AMR,
F4B to AMR,
VOC to AMR,
ALAW to AMR,
MPA to AMR,
M2A to AMR,
FLAC to AMR,
PVA to AMR,
3GP to AMR,
MPGA to AMR,
DTS to AMR,
DV to AMR,
OMA to AMR,
SDP to AMR,
SND to AMR,
OGG to AMR,
AU to AMR,
AVI to AMR,
W64 to AMR,
HDTV to AMR,
SPX to AMR,
MPC to AMR,
MJ2 to AMR,
DIF to AMR,
MP3 to AMR,
AMR to OGG,
MTV to AMR,
APE to AMR,
M1A to AMR,
CAF to AMR,
IT to AMR
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