diff --git a/go.mod b/go.mod
index bc87594..795de84 100644
--- a/go.mod
+++ b/go.mod
@@ -7,6 +7,7 @@ require (
 	github.com/gorilla/websocket v1.4.2
 	github.com/pkg/errors v0.9.1
 	github.com/sasha-s/go-csync v0.0.0-20160729053059-3bc6c8bdb3fa
+	golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2
 	golang.org/x/net v0.0.0-20200202094626-16171245cfb2 // indirect
 	golang.org/x/time v0.0.0-20191024005414-555d28b269f0
 )
diff --git a/voice/integration_test.go b/voice/integration_test.go
new file mode 100644
index 0000000..dd2c2e5
--- /dev/null
+++ b/voice/integration_test.go
@@ -0,0 +1,144 @@
+// +build integration
+
+package voice
+
+import (
+	"encoding/binary"
+	"io"
+	"log"
+	"os"
+	"testing"
+
+	"github.com/diamondburned/arikawa/discord"
+	"github.com/diamondburned/arikawa/state"
+)
+
+type testConfig struct {
+	BotToken  string
+	VoiceChID discord.Snowflake
+}
+
+func mustConfig(t *testing.T) testConfig {
+	var token = os.Getenv("BOT_TOKEN")
+	if token == "" {
+		t.Fatal("Missing $BOT_TOKEN")
+	}
+
+	var sid = os.Getenv("VOICE_ID")
+	if sid == "" {
+		t.Fatal("Missing $VOICE_ID")
+	}
+
+	id, err := discord.ParseSnowflake(sid)
+	if err != nil {
+		t.Fatal("Invalid $VOICE_ID:", err)
+	}
+
+	return testConfig{
+		BotToken:  token,
+		VoiceChID: id,
+	}
+}
+
+// file is only a few bytes lolmao
+func nicoReader(t *testing.T) (read func() []byte) {
+	f, err := os.Open("testdata/nico.dca")
+	if err != nil {
+		t.Fatal("Failed to open nico.dca:", err)
+	}
+
+	t.Cleanup(func() {
+		f.Close()
+	})
+
+	var lenbuf [4]byte
+
+	return func() []byte {
+		if _, err := io.ReadFull(f, lenbuf[:]); !catchRead(t, err) {
+			return nil
+		}
+
+		// Read the integer
+		framelen := int(binary.LittleEndian.Uint32(lenbuf[:]))
+
+		// Read exactly frame
+		frame := make([]byte, framelen)
+
+		if _, err := io.ReadFull(f, frame); !catchRead(t, err) {
+			return nil
+		}
+
+		return frame
+	}
+}
+
+func catchRead(t *testing.T, err error) bool {
+	t.Helper()
+
+	if err == io.EOF {
+		return false
+	}
+	if err != nil {
+		t.Fatal("Failed to read:", err)
+	}
+	return true
+}
+
+func TestIntegration(t *testing.T) {
+	config := mustConfig(t)
+
+	WSDebug = func(v ...interface{}) {
+		log.Println(v...)
+	}
+	// heart.Debug = func(v ...interface{}) {
+	// 	log.Println(append([]interface{}{"Pacemaker:"}, v...)...)
+	// }
+
+	s, err := state.New("Bot " + config.BotToken)
+	if err != nil {
+		t.Fatal("Failed to create a new session:", err)
+	}
+
+	v := NewVoice(s)
+
+	if err := s.Open(); err != nil {
+		t.Fatal("Failed to connect:", err)
+	}
+
+	// Validate the given voice channel.
+	c, err := s.Channel(config.VoiceChID)
+	if err != nil {
+		t.Fatal("Failed to get channel:", err)
+	}
+	if c.Type != discord.GuildVoice {
+		t.Fatal("Channel isn't a guild voice channel.")
+	}
+
+	conn, err := v.JoinChannel(c.GuildID, c.ID, false, false)
+	if err != nil {
+		t.Fatal("Failed to join channel:", err)
+	}
+
+	// Grab the file in the local test data.
+	read := nicoReader(t)
+
+	// Trigger speaking.
+	if err := conn.Speaking(Microphone); err != nil {
+		t.Fatal("Failed to start speaking:", err)
+	}
+
+	// Copy the audio?
+	for bytes := read(); bytes != nil; bytes = read() {
+		conn.OpusSend <- bytes
+		// conn.Write(bytes)
+	}
+
+	// Finish speaking.
+	if err := conn.StopSpeaking(); err != nil {
+		t.Fatal("Failed to stop speaking:", err)
+	}
+
+	if err := conn.Disconnect(s.Gateway); err != nil {
+		t.Fatal("Failed to disconnect:", err)
+	}
+}
diff --git a/voice/testdata/nico.dca b/voice/testdata/nico.dca
new file mode 100644
index 0000000..e745c2c
Binary files /dev/null and b/voice/testdata/nico.dca differ