Convert SMK to AMR

Total Audio MP3 Converter converts SMK 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.

1. Free Download Total Audio MP3 Converter here and then install the software by instructions
2. Launch Total Audio MP3 Converter
3. Choose SMK Files
   
   Click "Add Files" to choose SMK files and then add them to conversion list.
   
   
   Choose one or more SMK files you want to convert and then click Open.
   
   
4. Choose "to AMR"
   
   
   
5. Convert SMK to AMR
   
   Click button "Convert" to convert all SMK files to AMR format.
   
   
   The software is converting SMK files to AMR format.
   
   
6. 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.

Free Download Total Audio MP3 Converter

What is SMK?
SMK file is a Smacker Video. Smacker is a compressor for video, animation and sound data.

Smacker is very different than most video codecs. It is an 256-color (8-bit) codec - it uses a palette (or a series of palettes) for the video frames. This is both its greatest strength and its greatest weakness. 256-color data makes it super fast, but also hurts the color quality (even before any compression takes places).

At one time, games themselves were also 256-color. This made integrating Smacker much, much easier than other codecs, since Smacker was using the same techniques and modes that the game did. Also, in 256-color mode, Smacker looked better than true-color codecs since it used a palette that was custom designed for that video. True-color codecs used a fixed palette and dithering to run in 256-color mode, which hurt their overall 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 SMK to AMR Related Topics: 4XM to AMR, MPGA to AMR, DXA to AMR, RPL to AMR, MTS to AMR, DVR-MS to AMR, CAF to AMR, MPE to AMR, AMR to AAC, AMR Converter, XVID to AMR, AMR to MP4, QCP to AMR, 3GP to AMR, AU to AMR, AMR to OGG, TS to AMR, WMV to AMR, EVO to AMR, MPEG to AMR, S3M to AMR, AMR to M4B, ALAW to AMR, DV to AMR, 3GPP to AMR, OGG to AMR, HDTV to AMR, VCD to AMR, AMR to AWB, AMV to AMR, DIF to AMR, XA to AMR, AMR to WAV, OGX to AMR, MO3 to AMR, NUT to AMR, MPC to AMR, VQF to AMR, SPX to AMR, GXF to AMR