multi hotword support via HOTWORD=xyz bash build.sh

snowboy-2022/build.sh

@@ -17,10 +17,12 @@ if ! docker images | grep snowboy-pmdl.*latest &> /dev/null; then
    popd
 fi
 
-if [ -n "$TRAIN" ] || [ ! -d ./model ] || [ ! -f ./model/hotword.pmdl ]; then
+export HOTWORD="${HOTWORD:-default_hotword}"
+
+if [ -n "$TRAIN" ] || [ ! -d ./model ] || [ ! -f ./model/$HOTWORD.pmdl ]; then
    mkdir -p model
    pushd model
-   echo "record 3 instances of your hotword" >&2
+   echo "record 3 instances of '$HOTWORD'" >&2
    for i in 1 2 3; do
       read -p "ready? ctrl-c when done"
       rec \
@@ -38,6 +40,7 @@ if [ -n "$TRAIN" ] || [ ! -d ./model ] || [ ! -f ./model/hotword.pmdl ]; then
       -it \
       -v "$(realpath ./model)":/snowboy-master/examples/Python/model \
       snowboy-pmdl:latest
+   mv ./model/hotword.pmdl ./model/$HOTWORD.pmdl
 fi
 
 if false; then
@@ -54,7 +57,7 @@ if false; then
    import snowboydecoder
    import datetime
    detected_callback = lambda *args: print(datetime.datetime.now(), "GOTCHA")
-   d = snowboydecoder.HotwordDetector("../../../model/hotword.pmdl", sensitivity=0.5, audio_gain=1)
+   d = snowboydecoder.HotwordDetector("../../../model/'"$HOTWORD"'.pmdl", sensitivity=0.5, audio_gain=1)
    d.start(detected_callback)
    ' > breel.py
    echo GO
@@ -65,10 +68,10 @@ if false; then
    python3 ./breel.py
 else
    resources="$(realpath snowboy.git.d/resources/common.res)"
-   hotword="$(realpath ./model/hotword.pmdl)"
+   hotword="$(realpath ./model/$HOTWORD.pmdl)"
    GOPROXY= go build -o snowboy
    if [ -z "$PUSH" ]; then
-      ./snowboy -model "$hotword" -resources "$resources" -sensitivity 0.5
+      ./snowboy -m "$hotword" -r "$resources" -s 0.5 "$@"
    else
       echo '
 FROM registry-app.eng.qops.net:5001/imported/alpine:3.16

snowboy-2022/main.go

@@ -11,6 +11,7 @@ import (
 	"encoding/binary"
 	"flag"
 	"fmt"
+	"log"
 	"time"
 
 	"github.com/brentnd/go-snowboy"
@@ -74,9 +75,10 @@ func (s *Sound) Read(p []byte) (int, error) {
 }
 
 func main() {
-	resources := flag.String("resources", "", "path to the .res file")
-	model := flag.String("model", "", "path to the .?mdl file")
-	sensitivity := flag.Float64("sensitivity", 0.75, "0..1")
+	resources := flag.String("r", "", "path to the .res file")
+	model := flag.String("m", "", "path to the .?mdl file")
+	sensitivity := flag.Float64("s", 0.45, "0..1")
+	quiet := flag.Bool("q", false, "emit '1' on detect else silent")
 	flag.Parse()
 
 	if *resources == "" || *model == "" {
@@ -94,16 +96,22 @@ func main() {
 
 	// set the handlers
 	d.HandleFunc(snowboy.NewHotword(*model, float32(*sensitivity)), func(string) {
-		fmt.Println(time.Now(), "GOTCHA!")
+		if !*quiet {
+			log.Println("GOTCHA!")
+		} else {
+			fmt.Printf("1")
+		}
 	})
 
 	d.HandleSilenceFunc(1*time.Second, func(string) {
-		fmt.Println("...")
+		if !*quiet {
+			log.Println("...")
+		}
 	})
 
 	// display the detector's expected audio format
 	sr, nc, bd := d.AudioFormat()
-	fmt.Printf("sample rate=%d, num channels=%d, bit depth=%d\n", sr, nc, bd)
+	log.Printf("sample rate=%d, num channels=%d, bit depth=%d\n", sr, nc, bd)
 
 	// start detecting using the microphone
 	d.ReadAndDetect(mic)