Datasets:
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{
"dataset_name": "HTMOneShotLoopClassification",
"version": "1.0.0",
"description": "Metadata schema for HTMOneShotLoopClassification dataset features",
"total_features": 55,
"features": [
{
"name": "filename",
"type": "string",
"description": "Original audio filename"
},
{
"name": "stem",
"type": "categorical",
"description": "Target classification category (kick, snare, hihat, bass, synth, vocal, percussion, fx)",
"values": ["kick", "snare", "hihat", "bass", "synth", "vocal", "percussion", "fx"]
},
{
"name": "category",
"type": "categorical",
"description": "Sample type: 'one-shots' or 'loops'",
"values": ["one-shots", "loops"]
},
{
"name": "subfolder",
"type": "string",
"description": "Subfolder path within category (optional)"
},
{
"name": "duration",
"type": "float",
"description": "Audio duration in seconds",
"range": [0.0, "varies"]
},
{
"name": "sample_rate",
"type": "integer",
"description": "Audio sample rate in Hz",
"typical_value": 44100
},
{
"name": "rms",
"type": "float",
"description": "Root Mean Square energy (loudness measure)",
"range": [0.0, 1.0]
},
{
"name": "zcr",
"type": "float",
"description": "Zero Crossing Rate (noisiness measure)",
"range": [0.0, 1.0]
},
{
"name": "spectral_centroid",
"type": "float",
"description": "Spectral centroid in Hz (brightness measure)",
"range": [0.0, "varies"]
},
{
"name": "spectral_rolloff",
"type": "float",
"description": "Spectral rolloff frequency in Hz (high-frequency content)",
"range": [0.0, "varies"]
},
{
"name": "spectral_bandwidth",
"type": "float",
"description": "Spectral bandwidth in Hz (frequency spread)",
"range": [0.0, "varies"]
},
{
"name": "tempo",
"type": "float",
"description": "Detected tempo in BPM (0.0 if not detected)",
"range": [0.0, "varies"]
},
{
"name": "onset_count",
"type": "integer",
"description": "Number of detected onsets (transient events)",
"range": [0, "varies"]
},
{
"name": "pitch_mean",
"type": "float",
"description": "Mean fundamental frequency in Hz (0.0 if not detected)",
"range": [0.0, "varies"]
},
{
"name": "harmonic_ratio",
"type": "float",
"description": "Ratio of harmonic to total energy (tonal vs noisy)",
"range": [0.0, 1.0]
},
{
"name": "percussive_ratio",
"type": "float",
"description": "Ratio of percussive to total energy",
"range": [0.0, 1.0]
},
{
"name": "freq_sub_bass",
"type": "float",
"description": "Energy in sub-bass frequency band (20-60 Hz)",
"range": [0.0, 1.0]
},
{
"name": "freq_bass",
"type": "float",
"description": "Energy in bass frequency band (60-250 Hz)",
"range": [0.0, 1.0]
},
{
"name": "freq_low_mid",
"type": "float",
"description": "Energy in low-mid frequency band (250-2000 Hz)",
"range": [0.0, 1.0]
},
{
"name": "freq_high_mid",
"type": "float",
"description": "Energy in high-mid frequency band (2000-6000 Hz)",
"range": [0.0, 1.0]
},
{
"name": "freq_high",
"type": "float",
"description": "Energy in high frequency band (6000+ Hz)",
"range": [0.0, 1.0]
},
{
"name": "filepath",
"type": "string",
"description": "Full file path to original audio file"
},
{
"name": "spectral_contrast_1",
"type": "float",
"description": "Spectral contrast in frequency band 1",
"range": ["varies"]
},
{
"name": "spectral_contrast_2",
"type": "float",
"description": "Spectral contrast in frequency band 2",
"range": ["varies"]
},
{
"name": "spectral_contrast_3",
"type": "float",
"description": "Spectral contrast in frequency band 3",
"range": ["varies"]
},
{
"name": "spectral_contrast_4",
"type": "float",
"description": "Spectral contrast in frequency band 4",
"range": ["varies"]
},
{
"name": "spectral_contrast_5",
"type": "float",
"description": "Spectral contrast in frequency band 5",
"range": ["varies"]
},
{
"name": "spectral_contrast_6",
"type": "float",
"description": "Spectral contrast in frequency band 6",
"range": ["varies"]
},
{
"name": "spectral_contrast_7",
"type": "float",
"description": "Spectral contrast in frequency band 7",
"range": ["varies"]
},
{
"name": "mfcc_mean_1",
"type": "float",
"description": "Mean of Mel-Frequency Cepstral Coefficient 1",
"range": ["varies"]
},
{
"name": "mfcc_mean_2",
"type": "float",
"description": "Mean of Mel-Frequency Cepstral Coefficient 2",
"range": ["varies"]
},
{
"name": "mfcc_mean_3",
"type": "float",
"description": "Mean of Mel-Frequency Cepstral Coefficient 3",
"range": ["varies"]
},
{
"name": "mfcc_mean_4",
"type": "float",
"description": "Mean of Mel-Frequency Cepstral Coefficient 4",
"range": ["varies"]
},
{
"name": "mfcc_mean_5",
"type": "float",
"description": "Mean of Mel-Frequency Cepstral Coefficient 5",
"range": ["varies"]
},
{
"name": "mfcc_mean_6",
"type": "float",
"description": "Mean of Mel-Frequency Cepstral Coefficient 6",
"range": ["varies"]
},
{
"name": "mfcc_mean_7",
"type": "float",
"description": "Mean of Mel-Frequency Cepstral Coefficient 7",
"range": ["varies"]
},
{
"name": "mfcc_mean_8",
"type": "float",
"description": "Mean of Mel-Frequency Cepstral Coefficient 8",
"range": ["varies"]
},
{
"name": "mfcc_mean_9",
"type": "float",
"description": "Mean of Mel-Frequency Cepstral Coefficient 9",
"range": ["varies"]
},
{
"name": "mfcc_mean_10",
"type": "float",
"description": "Mean of Mel-Frequency Cepstral Coefficient 10",
"range": ["varies"]
},
{
"name": "mfcc_mean_11",
"type": "float",
"description": "Mean of Mel-Frequency Cepstral Coefficient 11",
"range": ["varies"]
},
{
"name": "mfcc_mean_12",
"type": "float",
"description": "Mean of Mel-Frequency Cepstral Coefficient 12",
"range": ["varies"]
},
{
"name": "mfcc_mean_13",
"type": "float",
"description": "Mean of Mel-Frequency Cepstral Coefficient 13",
"range": ["varies"]
},
{
"name": "mfcc_std_1",
"type": "float",
"description": "Standard deviation of Mel-Frequency Cepstral Coefficient 1",
"range": ["varies"]
},
{
"name": "mfcc_std_2",
"type": "float",
"description": "Standard deviation of Mel-Frequency Cepstral Coefficient 2",
"range": ["varies"]
},
{
"name": "mfcc_std_3",
"type": "float",
"description": "Standard deviation of Mel-Frequency Cepstral Coefficient 3",
"range": ["varies"]
},
{
"name": "mfcc_std_4",
"type": "float",
"description": "Standard deviation of Mel-Frequency Cepstral Coefficient 4",
"range": ["varies"]
},
{
"name": "mfcc_std_5",
"type": "float",
"description": "Standard deviation of Mel-Frequency Cepstral Coefficient 5",
"range": ["varies"]
},
{
"name": "mfcc_std_6",
"type": "float",
"description": "Standard deviation of Mel-Frequency Cepstral Coefficient 6",
"range": ["varies"]
},
{
"name": "mfcc_std_7",
"type": "float",
"description": "Standard deviation of Mel-Frequency Cepstral Coefficient 7",
"range": ["varies"]
},
{
"name": "mfcc_std_8",
"type": "float",
"description": "Standard deviation of Mel-Frequency Cepstral Coefficient 8",
"range": ["varies"]
},
{
"name": "mfcc_std_9",
"type": "float",
"description": "Standard deviation of Mel-Frequency Cepstral Coefficient 9",
"range": ["varies"]
},
{
"name": "mfcc_std_10",
"type": "float",
"description": "Standard deviation of Mel-Frequency Cepstral Coefficient 10",
"range": ["varies"]
},
{
"name": "mfcc_std_11",
"type": "float",
"description": "Standard deviation of Mel-Frequency Cepstral Coefficient 11",
"range": ["varies"]
},
{
"name": "mfcc_std_12",
"type": "float",
"description": "Standard deviation of Mel-Frequency Cepstral Coefficient 12",
"range": ["varies"]
},
{
"name": "mfcc_std_13",
"type": "float",
"description": "Standard deviation of Mel-Frequency Cepstral Coefficient 13",
"range": ["varies"]
}
],
"extraction_method": "librosa",
"notes": "Features extracted using librosa audio analysis library. MFCCs computed with 13 coefficients. Spectral features computed from magnitude spectrogram. Frequency bands sum to 1.0 (normalized energy distribution)."
}
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