Exploring Human Hearing Range
Still RelevantIntermediate
Human Hearing Range In this post, I'll look at an interesting aspect of Audacity – using it to explore the threshold of human hearing. In my book Digital Signal Processing: A Gentle Introduction with Audio Examples, I go into this topic...
Summary
This blog post shows how to use Audacity to explore the threshold of human hearing through hands-on experiments with pure tones and controlled noise. It demonstrates how to generate calibrated stimuli, verify them with FFT/Spectral Analysis, and estimate audibility thresholds using simple statistical methods.
Key Takeaways
- Generate calibrated pure-tone and noise stimuli in Audacity for controlled hearing tests.
- Measure and verify stimulus spectra using FFT/Spectral Analysis to confirm frequency and level.
- Estimate thresholds of audibility across frequency using repeated trials and basic statistical measures.
- Relate experimental results to DSP concepts such as noise floor, dynamic range, and spectral leakage.
Who Should Read This
Engineers, students, and hobbyists in audio or DSP who want a practical, experiment-driven introduction to measuring human auditory thresholds with simple tools.
Still RelevantIntermediate
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