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DSP Consultancy Services

We can perform high quality consultancy and contract work in areas such as telecommunication and audio that can employ DSP microprocessors. Such work includes:

• software implementations involving specific DSP systems

• DSP algorithm development from more general specifications

• command interface DSP software

• outline DSP hardware design and advice

• general consultancy in areas of DSP

• educational eg presentations, seminars

We can bring the following range of attributes to such work:-

Skills: we are capable of realising complex DSP algorithms from scratch. The DSP code suites for the modem data pumps described in the data sheets on this website have all been developed from a "blank sheet of paper", given the transmitter-only descriptions in the ITU Standards. In particular, the V34 implementation contains signal processing and DSP software elements far more complex than most DSP systems require. There are a number of innovative features in the code modules generally.

Technology: as well as the code suites and utilities detailed elsewhere on this website, we have an in-house library of DSP software algorithms (the algorithms run on all TI TMS320C54x/C55x/C2xx/C5x DSPs):

• FFT kernels; PCM u-and A-law transcoders; phase-to-cos/sin, dBs-to-linear, linear-to -dBs converters; digital filtering; tone generation and detection; telephone call progress generation & monitoring; command-line-interpreter for ASCII character sets eg AT commands

We have our own DSP PC plug-in cards for real- time DSP software development and demonstrations.

Experience: individually we are highly experienced, having used DSP microprocessors since 1982. Our background includes: realising modem and general data transmission systems; audio systems for telecoms eg speech coders, acoustic echo cancellers; general signal generation and detection. We have been extensively involved in telecoms systems of which the DSP side is but one component part, so we can bring much "overview" input to bear in a design. We have working experience of mobile and cordless systems, and the time-division-multiplexed aspects of digital telephone exchanges.

Academic and professional contacts: we have excellent contacts with the electrical engineering research departments of Imperial College (London University) and Bristol University, so we are capable of acting as intermediaries to initiate and monitor university research work for clients. We regularly attend ITU and other standards forums,