Digital Signal Processing Jobs

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Fixed-Price - Expert ($$$) - Est. Budget: $7,000 - Posted
This project is to design an analogue circuit for an audio input ‘front end’ which is ultra-low-noise, low powered, high dynamic range to be used in measurement instrumentation for sound and vibration. The following basic specifications will apply • Analogue signal input • Minimum signal around 1µVolt • Maximum signals 3-5Volts • High Dynamic range (approx. 10dB up to 140dB) • Ultra-low-noise circuit design • On-board power supply design • Battery powered from 4 x AA cells • Possible requirement for signal conditioning (filtering) • Analogue to Digital conversion to maintain signal integrity • EMC compliance must be a consideration of this design • Low noise circuit board layout must be a consideration Following this stage of the design, there is a need for digital signal processing circuitry. This could be fulfilled by an independent contract or could be included in a single project depending on the skills of the contractor. • Fast-processing of ADC output (approx. 60kHz) • DSP for producing FFT, Octave and fractional octave filters and overall band limiting, ‘shaped’ filters • Micro-processor for system handling, user interface, results processing, FFT, Octave and fractional octave filters and overall band limiting, ‘shaped’ filters, time weightings, frequency weightings • Wi-Fi and Bluetooth connectivity • USB output
Skills: Digital Signal Processing Electronic Design
Fixed-Price - Entry Level ($) - Est. Budget: $150 - Posted
Looking for someone who knows how to build, and add features requiring some computation, a standard Equalizer used in music software. Standalone app and/or Audio unit/VST.
Skills: Digital Signal Processing
Hourly - Intermediate ($$) - Est. Time: Less than 1 week, 10-30 hrs/week - Posted
I have a C++ project working for Mac OSX. I need someone to help me compile it under Windows VisualStudio. The code is in a git repository, I'm thinking the PC version will just be a separate branch. It appears to be a relatively simple task to begin with (not many hours). I generated the project with Projucer OS X, but then changed some things in the code. When I generate in Projucer again on the Windows side, some things broke. I am new to JUCE so not sure of the proper way to do things. I am using one (maybe two, for the audio sampler) 3rd-party JUCE modules, and also an external library hidapi. I may also need some help developing a non-MIDI audio sample player class with multiple voices and ring modulation.
Skills: Digital Signal Processing C++ Windows App Development
Fixed-Price - Entry Level ($) - Est. Budget: $150 - Posted
Hello, I am looking for the Microprocessor application engineer with best knowledge of assembly languages. Must be knowledgeable with Machine language (Assembly languages) The project will be given in a time frame with the initial phase and need to collaborative with the given final projects, when it is assigned. All of the reference codes and extra sources, etc will be given as we move forward the project.
Skills: Digital Signal Processing Analog Electronics IBM AS/400 Control Language Assembly Language
Hourly - Intermediate ($$) - Est. Time: Less than 1 week, 10-30 hrs/week - Posted
Looking for contractor experienced in matlab, python and some signal processing to convert the RASTA-PLP Matlab feature extraction algorithm to Python. Matlab code is listed below and can point you to a number of relevant libraries in Python that will make this go much quicker. Successful completion will involve delivering a python script that produces identical output to the original matlab code - please demonstrate that you have tested this in either Matlab or Octave. The script is here:, but requires the conversion of a number of other scripts to complete. Total code I'd estimate at around 1000 lines, mostly comments. These are listed below (all on powspec.m - probably can use librosa.core.stft and square energy manually audspec.m - just need Mel, not Bark, probably can use librosa.filters.mel to get wts rastafilt.m - can use scipy.signal.lfilter for this postaud.m - don't need bark or htkmel options dolpc.m - probably use but use your judgement lpc2cep.m - simple lpc2spec.m - simple lifter.m - simple
Skills: Digital Signal Processing MATLAB Python
Fixed-Price - Expert ($$$) - Est. Budget: $250 - Posted
HI im looking for an expert to help me in the image processing project and the requirements are as follows: 1. Use Chehra Tracker on stereo pair facial image. Note: you can use toys 2. Apply stereo depth finding algorithms and disparity algorithms ( state of art algorithms ) 3. Get depth of noise by using chehra tracker points and then but artificial noise on it and see what is the difference in depth. this is the link i have all the required documents and code and i can share with you , it is C++
Skills: Digital Signal Processing Computer vision Image Processing