diff --git a/cmd/treatment/main.go b/cmd/treatment/main.go
index 97dee882..b59bbc5c 100644
--- a/cmd/treatment/main.go
+++ b/cmd/treatment/main.go
@@ -82,7 +82,8 @@ const (
 
 // Variable map to send to netreceiver/vidgrind.
 var varMap = map[string]string{
-	"mode": "enum:Paused,Play,Check",
+	"mode":          "enum:Paused,Play,Check",
+	"AudioFilePath": "string",
 }
 
 func main() {
@@ -108,25 +109,25 @@ func main() {
 	log := logger.New(logVerbosity, io.MultiWriter(fileLog, netLog), logSuppress)
 
 	if *filePtr == "" {
-		log.Log(logger.Fatal, "no file path provided, check usage")
+		log.Fatal("no file path provided, check usage")
 	}
 
 	// The netsender client will handle communication with netreceiver and GPIO stuff.
-	log.Log(logger.Debug, "initialising netsender client")
+	log.Debug("initialising netsender client")
 	ns, err := netsender.New(log, gpio.InitPin, nil, gpio.WritePin, varMap)
 	if err != nil {
-		log.Log(logger.Fatal, "could not initialise netsender client", "error", err.Error())
+		log.Fatal("could not initialise netsender client", "error", err.Error())
 	}
 
 	// Revid will handle the recording and sending of audio for sound checking.
-	log.Log(logger.Debug, "initialising revid")
+	log.Debug("initialising revid")
 	rv, err := revid.New(config.Config{Logger: log}, ns)
 	if err != nil {
-		log.Log(logger.Fatal, "could not initialise revid", "error", err.Error())
+		log.Fatal("could not initialise revid", "error", err.Error())
 	}
 
 	// Start the control loop.
-	log.Log(logger.Debug, "starting control loop")
+	log.Debug("starting control loop")
 	run(rv, ns, filePtr, log, netLog)
 }
 
@@ -141,57 +142,64 @@ func run(rv *revid.Revid, ns *netsender.Sender, file *string, l *logger.Logger,
 	)
 
 	for {
-		l.Log(logger.Debug, "running netsender")
+		l.Debug("running netsender")
 		err := ns.Run()
 		if err != nil {
-			l.Log(logger.Warning, "run failed. Retrying...", "error", err.Error())
+			l.Warning("run failed. Retrying...", "error", err.Error())
 			time.Sleep(netSendRetryTime)
 			continue
 		}
 
-		l.Log(logger.Debug, "sending logs")
+		l.Debug("sending logs")
 		err = nl.Send(ns)
 		if err != nil {
-			l.Log(logger.Warning, pkg+"Logs could not be sent", "error", err.Error())
+			l.Warning(pkg+"Logs could not be sent", "error", err.Error())
 		}
 
-		l.Log(logger.Debug, "checking varsum")
+		l.Debug("checking varsum")
 		newVs := ns.VarSum()
 		if vs == newVs {
 			sleep(ns, l)
 			continue
 		}
 		vs = newVs
-		l.Log(logger.Info, "varsum changed", "vs", vs)
+		l.Info("varsum changed", "vs", vs)
 
-		l.Log(logger.Debug, "getting new vars")
+		l.Debug("getting new vars")
 		vars, err := ns.Vars()
 		if err != nil {
-			l.Log(logger.Error, pkg+"netSender failed to get vars", "error", err.Error())
+			l.Error(pkg+"netSender failed to get vars", "error", err.Error())
 			time.Sleep(netSendRetryTime)
 			continue
 		}
-		l.Log(logger.Info, "got new vars", "vars", vars)
+		l.Info("got new vars", "vars", vars)
 
 		// Configure revid based on the vars.
-		l.Log(logger.Debug, "updating revid configuration")
+		l.Debug("updating revid configuration")
 		err = rv.Update(vars)
 		if err != nil {
-			l.Log(logger.Warning, pkg+"couldn't update revid", "error", err.Error())
+			l.Warning(pkg+"couldn't update revid", "error", err.Error())
 			sleep(ns, l)
 			continue
 		}
-		l.Log(logger.Info, "revid successfully reconfigured")
+		l.Info("revid successfully reconfigured")
 
-		l.Log(logger.Debug, "checking mode")
+		l.Debug("checking mode")
 		switch ns.Mode() {
 		case modePaused:
 			stopAudio(&wg, &treating, audioQuit)
-			l.Log(logger.Info, "mode is Paused, stopping revid")
+			l.Info("mode is Paused, stopping revid")
 			rv.Stop()
 		case modeTreatment:
+			l.Debug("checking audio file path")
+			f := vars["AudioFilePath"]
+			if f != "" && *file != f {
+				file = &f
+				l.Info("updated audio file path, stopping audio", "AudioFilePath", f)
+				stopAudio(&wg, &treating, audioQuit)
+			}
 			if !treating {
-				l.Log(logger.Info, "starting audio treatment")
+				l.Info("starting audio treatment")
 				rv.Stop()
 				audioQuit = make(chan struct{})
 				treating = true
@@ -200,19 +208,19 @@ func run(rv *revid.Revid, ns *netsender.Sender, file *string, l *logger.Logger,
 			}
 		case modeCheck:
 			stopAudio(&wg, &treating, audioQuit)
-			l.Log(logger.Info, "sound checking")
+			l.Info("sound checking")
 			err = rv.Start()
 			if err != nil {
-				l.Log(logger.Error, "could not start revid", "error", err.Error())
+				l.Error("could not start revid", "error", err.Error())
 				ns.SetMode(modePaused, &vs)
 				sleep(ns, l)
 				continue
 			}
 		default:
-			l.Log(logger.Warning, "mode is not valid", "mode", ns.Mode())
+			l.Warning("mode is not valid", "mode", ns.Mode())
 
 		}
-		l.Log(logger.Info, "revid updated with new mode")
+		l.Info("revid updated with new mode")
 		sleep(ns, l)
 	}
 }
@@ -228,28 +236,28 @@ func playAudio(file *string, quit chan struct{}, wg *sync.WaitGroup, l *logger.L
 		// stdout and stderr.
 		outPipe, err := cmd.StdoutPipe()
 		if err != nil {
-			l.Log(logger.Error, "failed to pipe stdout", "error", err)
+			l.Error("failed to pipe stdout", "error", err)
 		}
 		errPipe, err := cmd.StderrPipe()
 		if err != nil {
-			l.Log(logger.Error, "failed to pipe stderr", "error", err)
+			l.Error("failed to pipe stderr", "error", err)
 		}
 
 		// Start playback of the audio file.
 		err = cmd.Start()
 		if err != nil {
-			l.Log(logger.Error, "start failed", "error", err.Error())
+			l.Error("start failed", "error", err.Error())
 			continue
 		}
 		numPlays++
-		l.Log(logger.Debug, "playing audio", "numPlays", numPlays)
+		l.Debug("playing audio", "numPlays", numPlays)
 
 		// Copy any std out to a buffer for logging.
 		var outBuff bytes.Buffer
 		go func() {
 			_, err = io.Copy(&outBuff, outPipe)
 			if err != nil {
-				l.Log(logger.Error, "failed to copy out pipe", "error", err)
+				l.Error("failed to copy out pipe", "error", err)
 			}
 		}()
 
@@ -258,20 +266,20 @@ func playAudio(file *string, quit chan struct{}, wg *sync.WaitGroup, l *logger.L
 		go func() {
 			_, err = io.Copy(&errBuff, errPipe)
 			if err != nil {
-				l.Log(logger.Error, "failed to copy error pipe", "error", err)
+				l.Error("failed to copy error pipe", "error", err)
 			}
 		}()
 
 		// Wait for playback to complete.
 		err = cmd.Wait()
 		if err != nil {
-			l.Log(logger.Error, "failed to wait for execution finish", "error", err.Error())
+			l.Error("failed to wait for execution finish", "error", err.Error())
 		}
-		l.Log(logger.Debug, "stdout received", "stdout", string(outBuff.Bytes()))
+		l.Debug("stdout received", "stdout", string(outBuff.Bytes()))
 
 		// If there was any errors on stderr, log them.
 		if errBuff.Len() != 0 {
-			l.Log(logger.Error, "errors from stderr", "stderr", string(errBuff.Bytes()))
+			l.Error("errors from stderr", "stderr", string(errBuff.Bytes()))
 		}
 
 		// Check for audio signal halt.
@@ -300,14 +308,14 @@ func stopAudio(wg *sync.WaitGroup, treating *bool, signal chan struct{}) {
 // sleep uses a delay to halt the program based on the monitoring period
 // netsender parameter (mp) defined in the netsender.conf config.
 func sleep(ns *netsender.Sender, l *logger.Logger) {
-	l.Log(logger.Debug, "sleeping")
+	l.Debug("sleeping")
 	t, err := strconv.Atoi(ns.Param("mp"))
 	if err != nil {
-		l.Log(logger.Error, pkg+"could not get sleep time, using default", "error", err)
+		l.Error(pkg+"could not get sleep time, using default", "error", err)
 		t = defaultSleepTime
 	}
 	time.Sleep(time.Duration(t) * time.Second)
-	l.Log(logger.Debug, "finished sleeping")
+	l.Debug("finished sleeping")
 }
 
 // checkPath wraps the use of lookPath to check the existence of executables
@@ -315,7 +323,7 @@ func sleep(ns *netsender.Sender, l *logger.Logger) {
 func checkPath(cmd string, l *logger.Logger) {
 	path, err := exec.LookPath(cmd)
 	if err != nil {
-		l.Log(logger.Fatal, fmt.Sprintf("couldn't find %s", cmd), "error", err)
+		l.Fatal(fmt.Sprintf("couldn't find %s", cmd), "error", err)
 	}
-	l.Log(logger.Debug, fmt.Sprintf("found %s", cmd), "path", path)
+	l.Debug(fmt.Sprintf("found %s", cmd), "path", path)
 }