Bitrate Detection for the AMR-WB Codec

The following speech samples are provided to illustrate speech coding effects of the AMR-WB codec at different bitrates.  For the single coded examples, the original speech signal was simply coded and decoded at the specified bitrate. For the tandem coded examples, the single coded signals were subject to a consecutive stage of coding and decoding.

 

Examples - Single coded

Bitrate   Male   Female
         
Original    
         
6.60 kbit/s    
         
12.65 kbit/s    
         
23.85 kbit/s    

 

Examples - Tandem coded

Bitrate   Male   Female
         
Original    
         
6.60 kbit/s, 6.60 kbit/s    
         
6.60 kbit/s, 12.65 kbit/s    
         
12.65 kbit/s, 12.65 kbit/s    

 

Website News

23.11.2019: GaS price 2019 for Jannek Winter for an excellent bachelor topic on underwater communication systems.

15.11.2019: Our new MIMO-SONAR system (sponsored by DFG) is now ready for "take off".

20.10.2019: We had a very good retreat on the island of Sylt.

07.08.2019: Talk from Juan Rafael Orozco-Arroyave added.

11.07.2019: First free KiRAT version released - a game for Parkinson patients

25.06.2019: About 30 pupils from the Isarnwohld-Schule in Gettorf visited us.

02.05.2019: Christin Baasch finished sucessfully her defense on the evaluation of Parkinson speech.

30.11.2018: New student project on driver distraction added.

Recent Publications

   

J. Reermann, E. Elzenheimer and G. Schmidt: Real-time Biomagnetic Signal Processing for Uncooled Magnetometers in Cardiology, IEEE Sensors Journal, Volume 15, Number 10, Pages 4237-4249, June 2019, doi: 10.1109/JSEN.2019.2893236

Contact

Prof. Dr.-Ing. Gerhard Schmidt

E-Mail: gus@tf.uni-kiel.de

Christian-Albrechts-Universität zu Kiel
Faculty of Engineering
Institute for Electrical Engineering and Information Engineering
Digital Signal Processing and System Theory

Kaiserstr. 2
24143 Kiel, Germany

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MIMO SONAR System

Recently, we get the new projector front-ends from Atlas Elektronik for our MIMO SONAR system. This was part of the "Großgerät" which was obtained with the help of the German research foundation (DFG). Now we are able to perform underwater experiments that will show if our ideas and corresponding realt-time algorithms also works in real environments.

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