Software
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Filter bank design and fast transforms for ISO MPEG audio coding (polyphase filterbank, FFT, DCT, DST, MDCT, IMDCT, CMDCT)
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Filter designs for a wide variety of requirements (FIR, IIR, Cauer, Bessel, Chebyshev, Butterworth)
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Packet-based speech signal processing (RTP, AAL)
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Speech enhancement, echo cancellation
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Basic algorithms of digital signal processing (FFT, Viterbi decoder, rate conversion)
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Automated test environments and tooling
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GUI development (C++ or web-based)
Porting and Optimization
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Porting floating-point algorithms to fixed-point in C and Assembler
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Optimization of program memory and data memory consumption by applying optimizations in C/ASM
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Reduction of processor workload by applying optimizations in C/ASM
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Audio codecs: MPEG-1 Audio Layer 1-3 (MP3), MPEG-2 AAC, MPEG-4 HE-AAC
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Speech codecs: ITU-T G.729/G.726/G.728, MPEG-4 HVXC
Embedded Systems Solutions
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Real-time data aquisition and transmission in embedded systems: I2C, RS232, CAN
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Real-time signal analysis for measurement applications: spectrum, cepstrum, order analysis, machine condition monitoring
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Communication between host PC systems and embedded systems
Platforms
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Analog Devices SHARC, Blackfin
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Texas Instruments TMS320C55x, C64xx, C67xx
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Texas Instruments TMS320F281x, F283x
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Motorola DSP 563xx
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Motorola Microcontroller HC05, HC08 und HC12
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Motorola ColdFire
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MIPS Technologies MIPS16, MIPS32
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DSP Group Oak, Pine
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Infineon Carmel
» References