M2V to AMR

Convert M2V to AMR, M2V to AMR Converter

AMR MP3 Converter
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Total Audio MP3 Converter

Convert M2V to AMR


Total Audio MP3 Converter converts M2V 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 M2V Files
    Click "Add Files"
    Click "Add Files" to choose M2V files and then add them to conversion list.

    Choose one or more M2V files
    Choose one or more M2V files you want to convert and then click Open.

  4. Choose "to AMR"
    to AMR

  5. Convert M2V to AMR
    Click Convert
    Click button "Convert" to convert all M2V files to AMR format.

    Converting M2V to AMR
    The software is converting M2V files to AMR format.

  6. Play & Browse
    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.
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What is M2V?
M2V is an MPEG-2 Packetized Elementary Stream. It contains only video related data.

MPEG-2 video stream files are normally destined to be multiplexed (muxed), which is the process of adding audio data and perhaps other streams such as subtitles, before use. MPEG-2 stream files are created by demultiplexing (demuxing) an existing MPEG-2, or by converting another video format to MPEG-2.

The file extension M2V is used for:

  • SFV Host Files that contain only the video stream
  • Files that contain both MPEG-2 video and audio streams, a use that may surprise those who expect only a video stream

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 M2V to AMR Related Topics: DV to AMR, SDP to AMR, MPGA to AMR, GXF to AMR, DIVX to AMR, WM to AMR, NUT to AMR, FLIC to AMR, CDA to AMR, ALAC to AMR, AMR to M4A, CAF to AMR, MO3 to AMR, SOL to AMR, AU to AMR, SWF to AMR, M1A to AMR, VQF to AMR, MKA to AMR, MVI to AMR, XVID to AMR, MPC to AMR, ALAW to AMR, MPE to AMR, VCD to AMR, NSV to AMR, 4XM to AMR, OMA to AMR, FLAC to AMR, AC3 to AMR, MTS to AMR, OGM to AMR, DIF to AMR, AMR to AWB, 3G2 to AMR, SPX to AMR, HDTV to AMR, F4V to AMR, PSX to AMR, DAT to AMR

 

 

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