Datasets
Standard Dataset
Near-Field Speaker Time Distortion - Anechoic and non-Anechoic
- Citation Author(s):
-
GreggO'Donnell
- Submitted by:
- Gregg O'Donnell
- Last updated:
- Fri, 03/07/2025 - 21:43
- DOI:
- 10.21227/bgrk-r252
- Data Format:
- License:
13 Views- Categories:
- Keywords:
Abstract
Dataset was created for the purposes of exploring time distortion with non-ideal near-field conditions. A 90 Hz square wave is played at 100dBA through a bookshelf speaker with the port removed. The recordings were captured at 5 separate axial distances (From 2" to 17", following inverse square law), and at three levels of resistive loading (No added resistance, 1.5 ohm, 3 ohm). The DC resistance of the speaker was measured at 6.9 ohms. To avoid overtraining, captures were recorded on a moving dynamic microphone.
There are two folders representing two separate trials; trial_1 (Anechoic Tests), and trial_2 (Non-Anechoic Tests).
Each set is cut into windows with.a length of exactly 1067 samples based on a thresholded inflection point prior to the square wave cycle.
Each filename is a single column, with D representing the distance and L representing the loading.
For further information, please observe README.md
Documentation
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 Capture Information | 1.78 KB |
