diff --git a/README.md b/README.md
index e58444d..9d0991e 100644
--- a/README.md
+++ b/README.md
@@ -6,18 +6,18 @@ A telephone over [Hyperbeam](https://github.com/mafintosh/hyperbeam)
 npm install -g hyperphone
 ```
 
-Needs sox installed.
+Needs ffmpeg installed.
 
 On mac:
 
 ```sh
-brew install sox
+brew install ffmpeg
 ```
 
 On linux:
 
 ```sh
-sudo apt-get install sox
+sudo apt-get install ffmpeg
 ```
 
 ## Usage
diff --git a/index.js b/index.js
index 6c7ee9e..9bd8f71 100755
--- a/index.js
+++ b/index.js
@@ -8,6 +8,12 @@ if (process.argv.length < 3) {
   process.exit(1)
 }
 
+const osAudioMap = {
+  linux: 'alsa',
+  darwin: 'avfoundation',
+  windows: 'dshow'
+}
+
 let record
 let play
 
@@ -21,10 +27,10 @@ beam.on('remote-address', function ({ host, port }) {
 
 beam.on('connected', function () {
   console.error('[hyperbeam] Success! Encrypted tunnel established to remote peer')
-  record = spawn('sox', ['-q', '--buffer', '512', '-d', '-r', '44100', '-c', '1', '-e', 'signed-integer', '-b', '16', '-t', 'wav', '-'], {
+  record = spawn('ffmpeg', ['-f', osAudioMap[process.platform], '-i', 'default', '-fflags', 'nobuffer', '-ar', '44100', '-vn', '-f', 'mpegts', '-v', '8', '-hide_banner', '-'], {
     stdio: ['inherit', 'pipe', 'inherit' ]
   })
-  play = spawn('play', ['-q', '--buffer', '512', '-'], {
+  play = spawn('ffplay', ['-f', 'mpegts', '-probesize', '32', '-analyzeduration', '0', '-af', 'adeclick=w=10:o=50', '-i', '-v', '8', '-hide_banner', '-nodisp', '-'], {
     stdio: ['pipe', 'inherit', 'inherit' ]
   })
   record.stdout.pipe(beam).pipe(play.stdin)