Audio DSP Recorder

The Audio DSP Recorder captures input audio while applying a user-defined DSP chain to each frame, producing a single, auditable PCM file. It supports mono or stereo input, configurable sample rate and bit depth, and can run for a fixed duration or until stopped. Conceptually, data flows from the OS input device through a chain of processing modules (gain, EQ, dynamics, filtering) before writing to disk, ensuring the recorded signal reflects the exact processing that was configured. This yields reproducible test signals for latency checks, algorithm validation, or instrumentation captures. The tool records metadata such as duration, sample_rate, channels, and DSP configuration to support traceability and audits. Its architecture emphasizes deterministic timing, lossless PCM encoding, and clear post-hoc analysis of the DSP impact on captured data. Typical beneficiaries include signal processing researchers, plugin developers, and audio QA engineers who need repeatable, well-documented recordings for comparisons and regression testing. Core value lies in combining flexible DSP chaining with reliable capture, reducing setup time and enabling rigorous validation across experiments. Use cases range from bench tests of compression and filtering to instrument capture studies where precise processing history matters. The tool is designed for backend use cases and is suitable for integration into automated DSP validation pipelines.