SoMiRiver: acoustic, microseismic, and video recordings from an artificial channel

A total of 107 experiments were conducted in the artificial channels under different hydraulic conditions, with synchronized acquisition of acoustic, vibration, and video data. The dataset is organized into four main directories: 1_no_vibration, 2_vibration, 3_stone_impact, and 4_signals_tests. The first three correspond to the evaluated flow conditions, whereas 4_signals_tests contains seven sensor validation experiments performed without water flow and, therefore, does not include video files. Each subfolder represents a single experiment and follows a naming convention that encodes the flow condition (no vibration=L, vibration=M, or stone impact=V), flume type (fixed =F or variable=V slope), channel slope in degrees, flow rate, and experiment number. There are nine flow rate levels, which correspond to: 0.25, 0.50, 1.25, 2.0, 2.25, 2.5, 3.3, 4.0, and 6.0 l/s; the assigned values correspond to the letters A through I, where A refers to 0.25 l/s and I refers to 6 l/s. For example, V_F_11_H_02 identifies the second experiment (02) performed under very high flow conditions with stone impact (V) in the fixed-slope (F) with inclination of 11° and flow rate of 4.0 L/s (H). Each subfolder contains six files corresponding to a single experiment: i) A 5.5-second WAV audio files, monophonic audio, with a sampling frequency of 11,025 Hz and 16-bit resolution, one WAV file containing subaerial audio recorded with the PC microphone. ii) A 5.5-second WAV audio files, monophonic audio, with a sampling frequency of 11,025 Hz and 16-bit resolution. The WAV file containing underwater acoustic recordings. An underwater microphone was used under low- and medium-to-high-flow conditions, whereas a hydrophone was used under very-high-flow conditions. iii) A CSV file containing 10,000 samples from a low-resolution microphone, acquired using a 12-bit A/ D converter with a sampling rate of 1,850 Hz. iv) A CSV file containing 1,000 vibration samples recorded using a 12-bit accelerometer with a sampling rate of 185 Hz, where both CSV files represent approximately 5.4 seconds of acquisition. v) An MP4 video with an approximate duration of 5.5 seconds, recorded at 30 frames per second (fps), with a frame width of 680 pixels and a frame height of 480 pixels. The video has a data rate of 2,701 kbps. The audio track is mono, sampled at 48 kHz, with a bit rate of 127 kbps. vi) A WAV audio track extracted from the MP4 video.