Clarify audio file type required.

README.md

@@ -18,7 +18,7 @@ You may be able to use newer or older versions of these components, but this is
 Running
 ----------------------------
 
-1. Create a folder at /frontend/public/audio and save your audio files there. They should all be the same length.
+1. Create a folder at /frontend/public/audio and save your OGG audio files there. They should all be the same length.
 2. Copy the file /.env.sample to /.env. Change the `AUDIO_FILES_ARRAY` to include your files.
 3. Change the `ADMIN_PASSWORD` in .env to something else!
 4. Run `yarn install`

frontend/src/view/admin.js

@@ -191,7 +191,7 @@ class Admin extends React.Component {
                     </div> 
                     ) : (
                     <div>
-                        Current play position: <strong>{this.state.syncPacket.timecode / 1000} seconds</strong><br />
+                        Current play position: <strong>{(this.state.syncPacket.timecode / 1000).toFixed(2)} seconds</strong><br />
                         <input type="range" min={0} max={370000} step={1} value={this.state.syncPacket.timecode} onChange={ evt => this.adjustTimecode(evt.target.value) } />
                         <div className="track-controls">
                             <button onClick={ () => this.restart() }>

frontend/src/view/buffer-client.js

@@ -21,7 +21,7 @@ class BufferClient extends React.Component {
                     <button className="playit">Play!</button>
                     <br />
                 </div>
-                Current play position: <strong>{this.props.realPosition / 1000} seconds</strong><br />
+                Current play position: <strong>{(this.props.realPosition / 1000).toFixed(2)} seconds</strong><br />
                 <br />
                 {enabledSources.length
                     ? <div className="enabled-sources">