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Convert SHN to AMR
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Total Audio MP3 Converter converts SHN 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 SHN Files
Click "Add Files" to choose SHN files and then add them to conversion
list.
Choose one or more SHN files you want to convert and then click Open.
- Choose "to AMR"
- Convert SHN to AMR
Click button "Convert" to convert all SHN files to AMR format.
The software is converting SHN 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 SHN?
Shorten (SHN) is a file format optimized for compressing audio data. It is a form
of data compression of files and is used to losslessly compress CD-quality audio
files (44.1 kHz 16-bit stereo PCM). Shorten is no longer developed and more mature
lossless audio codecs such as FLAC, MPEG-4 ALS, Monkey's Audio (APE), TTA, and
WavPack (WV) have become more popular. However, Shorten remains a common format
due to the large number of legally-traded concert recordings in circulation that
are encoded as Shorten files. Being lossless, these files can be transcoded with
the newer and more effective codecs without any loss. Shorten files use the .SHN
file extension.
Since few players or media writers attempt to decompress Shorten files, a standalone
decompression program is usually required to convert to a different file format
that those applications can handle. It is important to note that since Shorten
is a lossless format, it can be perfectly converted to any other lossless format
(and back, if desired) without a decrease in audio quality.
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 SHN to AMR Related Topics:
OGV to AMR,
3GPP to AMR,
AMR to AAC,
MKA to AMR,
MXF to AMR,
DV to AMR,
NUV to AMR,
XVID to AMR,
3GP2 to AMR,
M2A to AMR,
M4B to AMR,
F4B to AMR,
DAT to AMR,
PVA to AMR,
MLP to AMR,
NSA to AMR,
AC3 to AMR,
SND to AMR,
ALAW to AMR,
ADX to AMR,
3GP to AMR,
RPL to AMR,
SDP to AMR,
SWF to AMR,
MVI to AMR,
NSV to AMR,
TS to AMR,
MP4 to AMR,
F4A to AMR,
Resample AMR,
M2V to AMR,
OGM to AMR,
AU to AMR,
MPGA to AMR,
OMA to AMR,
EVO to AMR,
EVOB to AMR,
SPX to AMR,
AAC to AMR,
WMV to AMR
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