Dynamic sensor adaptation based on efferent feedback for adaptive bio-inspired sound source localization
1. Measurement setup & methodology This dataset contains simultaneous recordings of a MEMS cantilever sensor and a reference microphone in response to controlled acoustic stimuli. The experiment investigates sound source localization us
1. Measurement setup & methodology
This dataset contains simultaneous recordings of a MEMS cantilever sensor and a reference microphone in response to controlled acoustic stimuli. The experiment investigates sound source localization using interaural level differences (ILD) and evaluates the contribution of a neuromorphic MEMS cochlea sensor with nonlinear characteristics.
Recordings from:
Two independent MEMS cantilever channels
One reference microphone
Stimulus: Pure sine wave played for 2 seconds.
Cantilever recordings: Only the final 1 second is saved to avoid transient responses
Microphone recordings: Full 2 seconds are saved
Frequencies Tested: Two distinct frequencies were tested, selected to be near the resonance frequency of each cantilever (950 Hz and 986 Hz).
Feedback Sweep: Measurements were repeated at various feedback strengths ($a_f$), expressed as a percentage of the critical feedback amplitude ($a_crit$), ranging from 0 to 0.8.
Sampling Rates
DAQ: 100 kHz
Microphone: 32 kHz
Software Environment: MATLAB 2022a
2. Folder & File Structure
The dataset is organized into two main categories:
daq/– MEMS cantilever sensor recordingsmicrophone/– Reference microphone recordings
Directory Tree
Root Directory
├── daq.zip/ # Cantilever recordings │ ├── af_0.8/ (applied relative feedback strength)│ │ ├── canti_response_design_2_af_0.8_dc_0.1_....mat
│ │ └── canti_response_design_2_af_0.8_dc_0.1_....mat
│ ├── af_0.6/
(applied relative feedback strength)│ │ ├── canti_response_design_2_af_0.6_dc_0.1_....mat
│ │ └── canti_response_design_2_af_0.6_dc_0.1_....mat
│ ├── af_0.4/
(applied relative feedback strength)│ │ └── ... (files for different frequencies / amplitudes)
│ └── ... (other relative feedback strengths) │
└── microphone.zip/ # Microphone recordings
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Files are hosted on the source repository. Click download to access the full dataset.