Update and fix scripts

downmix.sh

@@ -1,10 +1,15 @@
 #!/bin/bash
-# Simple script to downmix a 5.1/5.1 (side) flac file to stereo,
-# and optionally resample to cd quality
 
-read -p 'Gain db [+3db]: ' GAIN
+# ====================================================================
+# Simple script to downmix a 5.0/5.1/5.1 (side) flac file to stereo,
+# and optionally resample to cd quality
+# 
+# Dependencies: ffmpeg (built with libsoxr and flac)
+# ====================================================================
+
+read -p 'Gain db [-6]: ' GAIN
 if [[ -z "$GAIN" ]]; then
-	GAIN=3
+	GAIN=-6
 fi
 
 read -p 'Resample to cd quality? [No]: ' RES
@@ -13,8 +18,8 @@ mkdir -p down
 
 for file in *.flac; do
 	if [[ -z "$RES" ]]; then
-		ffmpeg -i "$file" -af "pan=stereo| FL < FL + 0.707*FC + 0.707*BL + 0.707*SL + 0.5*LFE | FR < FR + 0.707*FC + 0.707*BR + 0.707*SR + 0.5*LFE,volume=${GAIN}dB" "down/$file"
+		ffmpeg -i "$file" -af "volume=volume=${GAIN}dB:precision=double,pan=stereo| FL = FL + 0.707*FC + 0.707*BL + 0.707*SL + 0.5*LFE | FR = FR + 0.707*FC + 0.707*BR + 0.707*SR + 0.5*LFE" "down/$file"
 	else
-		ffmpeg -i "$file" -af "pan=stereo| FL < FL + 0.707*FC + 0.707*BL + 0.707*SL + 0.5*LFE | FR < FR + 0.707*FC + 0.707*BR + 0.707*SR + 0.5*LFE,volume=${GAIN}dB,aresample=resampler=soxr:precision=28" -sample_fmt s16 -ar 44100 -map_metadata -1 "down/${file/%flac/wav}"
+		ffmpeg -i "$file" -af "volume=volume=${GAIN}dB:precision=double,pan=stereo| FL = FL + 0.707*FC + 0.707*BL + 0.707*SL + 0.5*LFE | FR = FR + 0.707*FC + 0.707*BR + 0.707*SR + 0.5*LFE,aresample=resampler=soxr:precision=33:cutoff=0.96:dither_method=triangular:out_sample_rate=44100:out_sample_fmt=s16" "down/${file/%flac/wav}"
 	fi
 done

flac2opus.sh

@@ -1,17 +1,17 @@
 #!/bin/bash
 
-read -p 'Input bitrate: ' BITRATE
+read -p 'Bitrate [192]: ' BITRATE
 if [[ -z "$BITRATE" ]]; then
-	BITRATE=160
+	BITRATE=192
 fi
-read -p 'Gain db: ' GAIN
+read -p 'Gain db [-1]: ' GAIN
 if [[ -z "$GAIN" ]]; then
-	GAIN=-2
+	GAIN=-1
 fi
 
 mkdir -p opus
 
-for file in ./*.flac; do
-	sox -V "$file" -t flac - gain $GAIN rate -v 48000 | opusenc --bitrate $BITRATE \
-	  - "./opus/${file/%flac/ogg}"
+for file in *.flac; do
+	sox -V3 -D "$file" -t flac -b 24 - gain "$GAIN" rate -v 48000 |
+	    opusenc --bitrate "$BITRATE" - "./opus/${file/%flac/ogg}"
 done

resampletocdq.sh

@@ -0,0 +1,26 @@
+#!/bin/bash
+
+# ===============================================================
+# Script for resampling flac/wav files to cd resolution
+#
+# Dependencies: SoX
+# ===============================================================
+
+read -p 'Gain db [0]: ' GAIN
+if [[ -z "$GAIN" ]]; then
+	GAIN=0
+fi
+
+read -p 'Format of source is wav? [flac]: ' FORMAT
+
+mkdir -p resampled
+
+if [[ -z "$FORMAT" ]]; then
+	for file in *.flac; do
+		sox -V3 "$file" -b 16 "resampled/${file/%flac/wav}" gain "$GAIN" rate -v 44100 dither -s
+	done
+else
+	for file in *.wav; do
+		sox -V3 "$file" -b 16 "resampled/$file" gain "$GAIN" rate -v 44100 dither -s
+	done
+fi