Convert MLP to AWB

AMR MP3 Converter converts MLP files to AWB 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 AWB.

AMR MP3 Converter also supports batch conversion, and is full compatible with Vista and Windows 7.

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

What is MLP?
MLP (Meridian Lossless Packing) is a lossless coding system for use on high-quality digital audio data originally represented as linear PCM. High quality audio these days implies high sample rates, large word sizes and multichannel.

The MLP is used by Meridian codec. Audio compression used on DVD video discs.

MLP performs lossless compression of up to 63 audio channels including 24-bit material sampled at rates as high as 192kHz.

Lossless compression has many applications in the recording and distribution of audio. In designing MLP we have paid a lot of attention to the application of lossless compression to data-rate-limited ransmission (e.g. storage on DVD), to the option of constant data rate in the compressed domain and to aspects that impact on mastering and authoring. MLP was targeted to provide:

• Good compression of both peak and average data rates.
• Use of both fixed and variable-rate data-streams.
• Automatic savings on bass-effects channels.
• Automatic savings on signals that do not use all of the available bandwidth (e.g. sampled at 96kHz).
• Automatic savings when channels are correlated.
• Comprehensive metadata.
• Hierarchical access to multichannel information.
• Modest decoding requirements.

MLP provides for up to 63 channels, but applications tend to be limited by the available data rate. To aid compatibility, MLP uses a hierarchical stream structure containing multiple substreams and hierarchical additional data. With this stream structure decoders need only access part of the stream to playback subsets of the audio. Suitable use of the substreams also allows 2-channel compatibility; a low-complexity decoder can recover a stereo mix from a multichannel stream. Figure 1 gives an overview of the process of losslessly compressing a stream containing multiple audio channels and auxiliary data onto a disc.

What is AWB?
Adaptive Multi-Rate Wideband (AMR-WB) is a patented speech coding standard developed based on Adaptive Multi-Rate encoding, using similar methodology as Algebraic Code Excited Linear Prediction (ACELP). AMR-WB provides excellent speech quality due to a wider speech bandwidth of 50-7000 Hz compared to narrowband speech coders which in general are optimized for POTS wireline quality of 300-3400 Hz.

AMR-WB is codified as G.722.2, an ITU-T standard speech codec, formally known as Wideband coding of speech at around 16 kbit/s using Adaptive Multi-Rate Wideband (AMR-WB). G.722.2 AMR-WB is the same codec as the 3GPP AMR-WB. The corresponding 3GPP specifications are TS 26.190 for the speech codec and TS 26.194 for the Voice Activity Detector.

A common file extension for AMR-WB file format is .awb. There also exists another storage format for AMR-WB 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. 3GP also allows use of AMR-WB bit streams for stereo sound.

The AMR-WB bitrates are 6.60, 8.85, 12.65, 14.25, 15.85, 18.25, 19.85, 23.05 and 23.85 kbps. Compared to narrowband speech codecs (like AMR) optimized for traditional telephone voice quality of 300-3400 Hz, the AMR-WB codec's wider bandwidth of 50-7000 Hz provides excellent speech quality.

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