dfd71e4d37
- detect_clicks.sh: Batch analysis of all cached FLAC files - analyze_flac.sh: Detailed analysis of a single FLAC file These tools help verify audio quality and detect encoding issues like clicks caused by buffer underruns.
77 lines
2.0 KiB
Bash
Executable File
77 lines
2.0 KiB
Bash
Executable File
#!/bin/bash
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# Script pour détecter les clics dans les fichiers FLAC du cache
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CACHE_DIR="${1:-/tmp/pmomusic_test/audio_cache}"
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if [ ! -d "$CACHE_DIR" ]; then
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echo "Error: Cache directory not found: $CACHE_DIR"
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exit 1
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fi
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echo "=== FLAC Click Detection Tool ==="
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echo "Scanning: $CACHE_DIR"
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echo ""
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# Vérifier que sox est installé
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if ! command -v sox &> /dev/null; then
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echo "Error: sox is not installed. Install it with: sudo apt install sox"
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exit 1
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fi
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count=0
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suspicious=0
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for file in "$CACHE_DIR"/*.orig.flac; do
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if [ ! -f "$file" ]; then
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echo "No FLAC files found in $CACHE_DIR"
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exit 0
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fi
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filename=$(basename "$file")
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echo "Analyzing: $filename"
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# Obtenir toutes les stats
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stats=$(sox "$file" -n stat 2>&1)
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# Extraire les valeurs importantes
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pk_lev=$(echo "$stats" | grep "Pk lev dB" | awk '{print $4}')
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rms_lev=$(echo "$stats" | grep "RMS lev dB" | awk '{print $4}')
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crest=$(echo "$stats" | grep "Crest factor" | awk '{print $3}')
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echo " Peak level: ${pk_lev:-N/A} dB"
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echo " RMS level: ${rms_lev:-N/A} dB"
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echo " Crest factor: ${crest:-N/A} dB"
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# Analyser la variance d'amplitude (détection de clics)
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# On compte le nombre de pics au-dessus d'un seuil
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peaks=$(sox "$file" -n stats 2>&1 | grep "Maximum amplitude" | awk '{print $3}')
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if [ -n "$peaks" ]; then
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# Si le peak est proche de 1.0 (clipping), c'est suspect
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is_clipping=$(echo "$peaks > 0.95" | bc -l 2>/dev/null)
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if [ "$is_clipping" = "1" ]; then
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echo " ⚠️ WARNING: Possible clipping detected!"
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suspicious=$((suspicious + 1))
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else
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echo " ✓ OK"
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fi
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else
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echo " ✓ OK"
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fi
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echo ""
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count=$((count + 1))
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done
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echo "=== Summary ==="
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echo "Files scanned: $count"
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echo "Suspicious files: $suspicious"
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if [ $suspicious -gt 0 ]; then
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echo ""
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echo "⚠️ Some files may have issues. Listen to them carefully."
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exit 1
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fi
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exit 0
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