IBM - CVUT Student Research Projects Adaptive mobile navigation Jaromír Škorpil ([email protected])
IBM - CVUT Student Research Projects Compression Algorithm for Wireless Microphone Michal Přibyl...
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Transcript of IBM - CVUT Student Research Projects Compression Algorithm for Wireless Microphone Michal Přibyl...
![Page 1: IBM - CVUT Student Research Projects Compression Algorithm for Wireless Microphone Michal Přibyl (pribym2@fel.cvut.cz)](https://reader036.fdocuments.in/reader036/viewer/2022062320/56649f565503460f94c7a99c/html5/thumbnails/1.jpg)
IBM - CVUT Student Research Projects
Compression Algorithmfor Wireless Microphone
Michal Přibyl ([email protected])
![Page 2: IBM - CVUT Student Research Projects Compression Algorithm for Wireless Microphone Michal Přibyl (pribym2@fel.cvut.cz)](https://reader036.fdocuments.in/reader036/viewer/2022062320/56649f565503460f94c7a99c/html5/thumbnails/2.jpg)
IBM - CVUT Student Research Projects
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Goals
• Compare available audio compression algorithms
• Choose suitable codec for dsPic30 i. e. compression with low complexity
• Implement this audio compression library in C for dsPic30 and PC
![Page 3: IBM - CVUT Student Research Projects Compression Algorithm for Wireless Microphone Michal Přibyl (pribym2@fel.cvut.cz)](https://reader036.fdocuments.in/reader036/viewer/2022062320/56649f565503460f94c7a99c/html5/thumbnails/3.jpg)
IBM - CVUT Student Research Projects
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Wireless Microphone Specification
• Sampling rate: 16 kHz
• Data width: 16 bits
• Transmitting protocol: Bluetooth
![Page 4: IBM - CVUT Student Research Projects Compression Algorithm for Wireless Microphone Michal Přibyl (pribym2@fel.cvut.cz)](https://reader036.fdocuments.in/reader036/viewer/2022062320/56649f565503460f94c7a99c/html5/thumbnails/4.jpg)
IBM - CVUT Student Research Projects
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Wireless Microphone Architecture by Petr Mohelský
Codec+
Microprocessor
BT modulRS 232
PCUSB BTDongle
(COM 4)
BT signal
Serial comunication
software
Soundsoftware
Soundcard
Microphone
![Page 5: IBM - CVUT Student Research Projects Compression Algorithm for Wireless Microphone Michal Přibyl (pribym2@fel.cvut.cz)](https://reader036.fdocuments.in/reader036/viewer/2022062320/56649f565503460f94c7a99c/html5/thumbnails/5.jpg)
IBM - CVUT Student Research Projects
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Accomplished goals
• ComparisonDue the algorithm complexity was chosen Sub Band Codec (SBC) defined by the Advanced Audio Distribution Profile Specification v1.0
• ImplementationFinished lower level of SBC consisting of ADPCM compression.
![Page 6: IBM - CVUT Student Research Projects Compression Algorithm for Wireless Microphone Michal Přibyl (pribym2@fel.cvut.cz)](https://reader036.fdocuments.in/reader036/viewer/2022062320/56649f565503460f94c7a99c/html5/thumbnails/6.jpg)
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Thank you for your attention