diff --git a/port/posix-h4/Makefile b/port/posix-h4/Makefile
index f779f4321..20908ffb6 100644
--- a/port/posix-h4/Makefile
+++ b/port/posix-h4/Makefile
@@ -11,6 +11,8 @@ CORE += \
 	btstack_chipset_tc3566x.c \
 	btstack_link_key_db_tlv.c \
 	btstack_run_loop_posix.c \
+	btstack_audio.c \
+    btstack_audio_portaudio.c \
 	btstack_tlv_posix.c \
 	btstack_uart_block_posix.c \
 	hci_transport_h4.c \
@@ -22,7 +24,6 @@ CORE += \
 	0000000_META_hci_patches_v7.c \
 	# bluetooth_init_cc2564_2.14.c \
 	# bluetooth_init_cc2564C_1.4.c \
-
 # TI-WL183x requires TIInit_11.8.32.c
 
 # examples
diff --git a/port/posix-h4/main.c b/port/posix-h4/main.c
index 2b09bf1e6..49b16adfc 100644
--- a/port/posix-h4/main.c
+++ b/port/posix-h4/main.c
@@ -51,6 +51,7 @@
 
 #include "btstack_config.h"
 
+#include "btstack_audio.h"
 #include "btstack_debug.h"
 #include "btstack_event.h"
 #include "ble/le_device_db_tlv.h"
@@ -261,6 +262,11 @@ int main(int argc, const char * argv[]){
 	const hci_transport_t * transport = hci_transport_h4_instance(uart_driver);
 	hci_init(transport, (void*) &config);
 
+#ifdef HAVE_PORTAUDIO
+    btstack_audio_sink_set_instance(btstack_audio_portaudio_sink_get_instance());
+    btstack_audio_source_set_instance(btstack_audio_portaudio_source_get_instance());
+#endif
+
     // set BD_ADDR for CSR without Flash/unique address
     // bd_addr_t own_address = { 0x11, 0x22, 0x33, 0x44, 0x55, 0x66};
     // btstack_chipset_csr_set_bd_addr(own_address);