Audio, Imaging, and Communications Systems
Measure. Analyze. Implement. Expert signal and embedded solutions.
Audio, Imaging, and Communications Systems
Measure. Analyze. Implement. Expert signal and embedded solutions.
Digital Signal Processing Development and Analysis
Middle Fork Consulting provides algorithm design, analysis, and prototyping for audio, imaging, and communications systems. Using MATLAB’s DSP and Communications System Toolboxes, OpenCV, and other industry-standard tools, we support both simulation and implementation of advanced signal processing architectures.
Audio DSP
We design and validate filters, extract features, analyze signal quality, and develop algorithms for audio processing applications.
- FIR and IIR filter design and optimization
- Audio feature extraction
- Signal quality analysis
- Algorithm design and prototyping
Imaging DSP
We develop and evaluate kernel-based feature extraction, object detection, and tracking pipelines for imaging applications.
- Kernel-based feature extraction
- Object detection and tracking
- Algorithm design and prototyping
Image Quality Analysis
We assess the performance of optical elements and image signal processing (ISP) using tools such as Imatest, ensuring sensor outputs meet design specifications.
- Optical element characterization
- ISP performance evaluation
- Quantitative image quality metrics
Communications DSP
We provide physical layer prototyping and waveform design, including modulation schemes such as PSK, QAM, and OFDM. We also analyze data rate, spectral efficiency, and error performance in relation to signal-to-noise ratio, bandwidth, and modulation choice.
- Physical layer prototyping and waveform development
- PSK, QAM, and OFDM modulation implementation
- Data rate, SNR, and bandwidth tradeoff analysis
- Algorithm design and prototyping
Audio Acoustic and Electrical Verification
Every great audio product depends on clear insight into both its electrical and acoustic behavior. Middle Fork Consulting brings these disciplines together, offering precision measurement and analysis that connects what’s happening inside your circuitry to what your customer hears.
With capabilities spanning from analog and Bluetooth signal analysis to calibrated acoustic testing, we provide the data and engineering perspective needed to guide development, troubleshoot issues, and validate designs with confidence.
Acoustic Measurement
We offer standardized and traceable acoustic measurements for micro- to medium-scale transducers. Using IEC-compliant setups and calibrated instrumentation, we characterize frequency response, directivity, distortion, and sensitivity under controlled conditions.
Available measurements:
• Anechoic chamber testing
• Head and torso (HATS) simulation
• Artificial mouth and ear measurements
• Custom test configuration and data reporting
Electrical Measurement
We provide comprehensive electrical characterization and analysis for audio and mixed-signal systems. Our lab is equipped with an Audio Precision APx517B (including Bluetooth measurement capability), along with a four-channel oscilloscope, precision signal generators, and standard bench instrumentation for both analog and digital domains.
We perform measurements on microphones, amplifiers, Bluetooth devices, and other audio subsystems, supporting validation, debug, and performance optimization. Data analysis can be conducted using APx software or custom MATLAB toolchains for deeper signal inspection and automation.
Available measurements include:
• Frequency response, THD+N, and noise characterization
• Bluetooth audio performance and latency testing
• Gain, sensitivity, and distortion analysis for analog stages
• Signal integrity validation for digital and mixed-signal interfaces
Embedded Systems Development
Building on our DSP and measurement expertise, Middle Fork Consulting develops embedded systems that implement and validate algorithms on real hardware. We support the full design cycle—from IC selection and schematic review to firmware development, board bring-up, and performance verification.
Our experience spans microcontrollers, DSPs, and SoCs used in audio, imaging, and wireless systems. We implement low-level firmware, real-time signal processing, and communication interfaces while maintaining traceable links between design intent, simulation, and measured performance.
Embedded capabilities include:
• IC selection, system architecture, and schematic review
• Firmware and DSP integration on microcontrollers and SoCs
• Board bring-up, signal integrity validation, and debug
• I²C, SPI, UART, I²S, and Bluetooth interface development
• Hardware/software co-design and real-time performance optimization