diff --git a/sox_convert.html b/sox_convert.html
index 14784e2..80cd640 100644
--- a/sox_convert.html
+++ b/sox_convert.html
@@ -38,6 +38,9 @@
             oggCompression: {value:3, required:true},
             oggChannels: {value:2, required:true},
             oggRate: {value:44100, required:true},
+            ulawMore: {value:false, required:true},
+            ulawChannels: {value:1, required:true},
+            ulawRate: {value:8000, required:true},
             debugOutput: {value:false, required:true}
         },
         inputs:1,
@@ -67,24 +70,35 @@
                     $("#mp3Wrapper").hide();
                     $("#flacWrapper").hide();
                     $("#oggWrapper").hide();
+                    $("#ulawWrapper").hide();
                 } else if (typeVar == "flac") {
                     $("#outputExt").text(".flac");
                     $("#flacWrapper").show();
                     $("#wavWrapper").hide();
                     $("#mp3Wrapper").hide();
                     $("#oggWrapper").hide();
+                    $("#ulawWrapper").hide();
                 } else if (typeVar == "mp3") {
                     $("#outputExt").text(".mp3");
                     $("#mp3Wrapper").show();
                     $("#wavWrapper").hide();
                     $("#flacWrapper").hide();
                     $("#oggWrapper").hide();
+                    $("#ulawWrapper").hide();
                 } else if (typeVar == "ogg") {
                     $("#outputExt").text(".ogg");
                     $("#oggWrapper").show();
                     $("#wavWrapper").hide();
                     $("#flacWrapper").hide();
                     $("#mp3Wrapper").hide();
+                    $("#ulawWrapper").hide();
+                } else if (typeVar == "ulaw") {
+                    $("#outputExt").text(".ulaw");
+                    $("#ulawWrapper").show();
+                    $("#oggWrapper").hide();
+                    $("#wavWrapper").hide();
+                    $("#flacWrapper").hide();
+                    $("#mp3Wrapper").hide();
                 }
             });
             
@@ -128,6 +142,14 @@
                     $("#oggWrapperMore").show();
                 }
             });
+
+            $("#node-input-ulawMore").on("change", function(){
+                if(!$("#node-input-ulawMore").prop("checked")){
+                    $("#ulawWrapperMore").hide();
+                } else {
+                    $("#ulawWrapperMore").show();
+                }
+            });
         }
     });
 </script>
@@ -140,6 +162,7 @@
             <option value="flac">flac</option> 
             <option value="mp3">mp3</option>
             <option value="ogg">ogg</option>
+            <option value="ulaw">ulaw</option>
         </select>
     </div>
     <div class="form-row">
@@ -268,6 +291,24 @@ <h4>Settings</h4>
             <br>
         </div>
     </div>
+    <div id="ulawWrapper">
+        <div class="form-row">
+            <label for="node-input-ulawMore">advanced</i></label>
+            <input type="checkbox" id="node-input-ulawMore" style="display:inline-block; width: auto; vertical-align:baseline;" value="false">
+            <label for="node-input-ulawMore" style="width: 70%;">show more conversion options</label>
+        </div>
+        <div id="ulawWrapperMore">
+            <div class="form-row">
+                <label for="node-input-ulawChannels"><i class="icon-tag"></i>channels</label>
+                <input type="number" id="node-input-ulawChannels" value="1" />
+            </div>
+            <div class="form-row">
+                <label for="node-input-ulawRate"><i class="icon-tag"></i>sample-rate</label>
+                <input type="number" id="node-input-ulawRate" value="8000" />
+            </div>
+            <br>
+        </div> 
+    </div>
     <div class="form-row">
         <label for="node-input-debugOutput"></i>debug</label>
         <input type="checkbox" id="node-input-debugOutput" style="display:inline-block; width: auto; vertical-align:baseline;" value="false">
@@ -299,4 +340,4 @@ <h4>Name</h4>
     <p><i>For detailed usage information please go to
     <a href="https://github.com/johanneskropf/node-red-contrib-sox-utils">node-red-contrib-sox-utils
     </a>.</i></p>
-</script>
\ No newline at end of file
+</script>
diff --git a/sox_convert.js b/sox_convert.js
index c9d45d8..851a068 100644
--- a/sox_convert.js
+++ b/sox_convert.js
@@ -47,6 +47,9 @@ module.exports = function(RED) {
         this.oggCompression = config.oggCompression;
         this.oggChannels = config.oggChannels;
         this.oggRate = config.oggRate;
+        this.ulawMore = config.ulawMore;
+        this.ulawChannels = config.ulawChannels;
+        this.ulawRate = config.ulawRate;
         this.fileId = "";
         this.filePath = "";
         this.inputFilePath = "";
@@ -221,6 +224,15 @@ module.exports = function(RED) {
                     node.argArr2 = ["-C",node.oggCompression,node.filePath];
                 }
                 break;
+
+            case "ulaw":
+                node.filePath += ".ulaw";
+                if (node.ulawMore) {
+                    node.argArr2 = ["-c",node.ulawChannels,"-r",node.ulawRate,"-t","ul",node.filePath];
+                } else {
+                    node.argArr2 = ["-t","ul",node.filePath];
+                }
+                break;
         }
         
         node.on('input', function(msg, send, done) {
@@ -356,4 +368,4 @@ module.exports = function(RED) {
         
     }
     RED.nodes.registerType("sox-convert",SoxConvertNode);
-}
\ No newline at end of file
+}