Digital_signal_processing

# Digital signal processing  ## Microsims — p5.js ### Digital signal processing (p5.js) · `DSP` <div class="microsim-player"> <iframe src="https://editor.p5js.org/sciencenibber/full/Qew5BK1Su" width="100%" height="480" frameborder="0" loading="lazy" sandbox="allow-scripts allow-same-origin" title="Digital signal processing — p5.js microsim"></iframe> </div> *Processing signals as numbers — filter, transform, compress, analyze — the whole discipline in three letters.* **Open in the editor:** [▶ fork this sketch](https://editor.p5js.org/sciencenibber/sketches/Qew5BK1Su) · movement *IX · Foundations & the rest of the toolbox* · library `p5js` ### Related microsims Live sims on neighbouring articles — 6 of them inside this article's own Wikipedia link tree: - [[Convolution]] *(in tree)* - [[Data_compression]] *(in tree)* - [[Detection_theory]] *(in tree)* - [[Digital_image_processing]] *(in tree)* - [[Discrete_cosine_transform]] *(in tree)* - [[Discrete_time_and_continuous_time]] *(in tree)* *Sim hosted off-article; the article owns the reference, not the runtime (WIKI_RULES §10.4). Placed by `g08_place_microsims.py`.*  ## Links (Wikipedia order)  `Academic_Press` · `Advanced_z-transform` · [[Algorithm]] · `Aliasing` · `Analog-to-digital_converter` · `Analog_signal_processing` · `Anti-aliasing_filter` · `Application-specific_integrated_circuit` · `Asynchronous_circuit` · `Audio_crossover` · `Audio_signal_processing` · `Bilinear_transform` · [[Biomedical_engineering]] · `Biomedicine` · `Boolean_algebra` · `Boolean_circuit` · `Capacitor` · `Cepstrum` · `Combinational_logic` · `Complex_programmable_logic_device` · [[Computer_architecture]] · [[Computer_engineering]] · `Computer_graphics` · [[Computer_hardware]] · [[Computer_science]] · `Computer_vision` · `Constant-Q_transform` · [[Control_engineering]] · [[Control_system]] · [[Convolution]] · `Cubase` · [[Data_compression]] · `Data_processing` · `Dataflow_programming` · [[Detection_theory]] · `Digital-to-analog_converter` · `Digital_Performer` · `Digital_audio` · `Digital_audio_workstation` · `Digital_cinematography` · `Digital_electronics` · `Digital_filter` · [[Digital_image_processing]] · `Digital_photography` · `Digital_radio` · `Digital_signal` · `Digital_signal_(signal_processing)` · `Digital_signal_controller` · `Digital_signal_processor` · `Digital_synthesizer` · `Digital_television` · `Digital_transformation` · `Digital_video` · `Dimitris_Manolakis` · `Discrete-time_Fourier_transform` · `Discrete_Fourier_transform` · [[Discrete_cosine_transform]] · [[Discrete_time_and_continuous_time]] · [[Discrete_wavelet_transform]] · `Discretization` · `Downsampling_(signal_processing)` · `Economic_forecasting` · `Effects_unit` · [[Electrical_engineering]] · `Electronic_circuit` · `Electronic_component` · `Electronic_literature` · `Emitter-coupled_logic` · [[Error_detection_and_correction]] · [[Estimation_theory]] · [[Fast_Fourier_transform]] · `Field-programmable_gate_array` · `Field-programmable_object_array` · `Filter_bank` · [[Filter_design]] · `Financial_signal_processing` · [[Finite-state_machine]] · `Finite_impulse_response` · [[Flip-flop_(electronics)]] · `Formal_equivalence_checking` · [[Fourier_analysis]] · `Fourier_transform` · [[Frequency_domain]] · [[Frequency_response]] · [[Functional_analysis]] · `Fundamental_frequency` · `Gate_equivalent` · `Generic_Array_Logic` · `Goertzel_algorithm` · [[Graphics_processing_unit]] · `Hardware_acceleration` · `Hardware_description_language` · `Hearing_aid` · `High-level_synthesis` · `Hybrid_integrated_circuit` · [[Image_compression]] · `Impulse_invariance` · [[Impulse_response]] · `Inductor` · `Infinite_impulse_response` · [[Information_theory]] · [[Integral_transform]] · `Integrated_circuit` · `James_H._McClellan` · `K._R._Rao` · [[Laplace_transform]] · `Lawrence_Rabiner` · [[Least-squares_spectral_analysis]] · `Logic_Pro` · [[Logic_gate]] · `Logic_in_computer_science` · `Logic_synthesis` · `MP3` · [[Machine_learning]] · `Macrocell_array` · `Matched_Z-transform_method` · `Medical_imaging` · `Memory_cell_(computing)` · `Metastability_(electronics)` · `Microprocessor` · `Minimum_phase` · `Mixed-signal_integrated_circuit` · `Mobile_phone` · `Multidimensional_DSP_with_GPU_acceleration` · `Multidimensional_signal_processing` · `Nasir_Ahmed_(engineer)` · `Noise_reduction` · `Nonlinear_system_identification` · `Numerical_analysis` · `Nyquist_frequency` · `Nyquist_rate` · [[Nyquist–Shannon_sampling_theorem]] · `Oversampling` · `Place_and_route` · `Placement_(electronic_design_automation)` · `Printed_circuit_board` · `Printed_electronics` · `Pro_Tools` · `Programmable_Array_Logic` · `Programmable_logic_array` · `Programmable_logic_device` · `Prony's_method` · [[Quantization_(signal_processing)]] · `Radar` · [[Real-time_computing]] · `Register-transfer_level` · `Resistor` · `Ronald_W._Schafer` · `Routing_(electronic_design_automation)` · `Runt_pulse` · [[Sampling_(signal_processing)]] · `Seismology` · `Sensor_array` · [[Sequential_logic]] · `Short-time_Fourier_transform` · `Signal_conditioning` · [[Signal_processing]] · `Sonar` · `Spacetime` · `Spectral_density_estimation` · [[Speech_coding]] · `Speech_processing` · `Speech_recognition` · `Springer_Science+Business_Media` · `Starred_transform` · [[Stream_processing]] · `Streaming_data` · `Switching_circuit_theory` · `Synchronous_circuit` · `TC_Electronic` · [[Telecommunications]] · `Telephony` · `Tensor_Processing_Unit` · `Three-dimensional_integrated_circuit` · [[Time_domain]] · [[Time_series]] · `Transaction-level_modeling` · [[Transfer_function]] · [[Transistor]] · [[Uncertainty_principle]] · `Undersampling` · `Universal_Audio_(company)` · `Upsampling` · `Wavelet` · `Wavelet_transform` · [[Weather_forecasting]] · [[Z-transform]] · `Zak_transform` > Signal Processing concept · part of the Signal Processing Portal · movement IX · !09 解析 kaiseki.svg  !480 *Rendered from the live microsim (▶ motion).*  ## See it next [![Discrete-time signal|200](Discrete-time_signal_thumb.png)](Discrete-time_signal) *→ Discrete-time signal*  --- Back to Signal Processing Portal · the room · Semiotic gateway  ## What it is Digital signal processing (DSP) is the use of digital computation to analyze, modify, and synthesize signals such as sound, images, and measurement data after they have been sampled and quantized. ## How it works / why it matters DSP represents signals as sequences of numbers and applies mathematical operations — filtering, convolution, spectral analysis via the Fourier transform, and statistical estimation — using algorithms running on general-purpose processors or specialized hardware. Compared with analog processing it offers flexibility, reproducibility, and precision, making it central to telecommunications, audio and image processing, radar, biomedical instrumentation, and control systems. ## Signs & universals Instantiates: - signal — the entire discipline operates on signals - transformation — core operations transform signals via filtering and transforms - system — DSP is realized as processing systems mapping inputs to outputs - frequency — spectral analysis in the frequency domain is fundamental ## Related Digital signal (signal processing), Discrete-time signal, Digital processing, [[Convolution]], Digital filter, Discrete Fourier transform, Signal Processing  ## From the Real GENERATIVE library > Digital signal processing (DSP) is the use of digital processing, such as by computers or more specialized digital signal processors, to perform a wide variety of signal processing operations. The digital signals processed in this manner are a sequence of numbers that represent samples of a continuous variable in a domain such as time, space, or frequency. ([Wikipedia](https://en.wikipedia.org/wiki/Digital_signal_processing))   *Built to the [[WT!P5_js_Microsim_Master_Class|p5.js Master Class]].*  ## Wikipedia : Wikitube **Strict pair:** [Wikipedia](https://en.wikipedia.org/wiki/Digital_signal_processing) : [Wikitube](https://en.wikitube.io/wiki/Digital_signal_processing) ## Previous hub tags Tree parents: [[Control_theory]] · [[Information_theory]]. Legacy hubs: none. --- *Sources: 1 legacy note. Minted wave 1, 2026-07-30 (v1.6 order).*