Reply To: IDC777 unicast UTXV sampling rate

[IOT747 Team]

You need to set aptx-lowlatency. Do you have a license? You should see (aptX Lossless: ON when you boot).

See below the example.

Board1:

restore
IOT747 Copyright 2022
AudioAgent IDC777 V3.1.83
Build: 0400427b
Bluetooth address 245DFC02157A
Ready
aptX Lossless: ON
PAIR_PENDING
set CODEC=OFF OFF OFF OFF OFF OFF OFF ON ON
OK
set UCAST_CONFIG_TXM=2 48 2
OK
set profiles=on 0 1 0 1 1 1 1
OK
write
(then reset)

pair 245DFC020000
PENDING
PAIR_OK 245DFC020000
PAIR_OK_LE 245DFC020000
open 245DFC020000 utxm
PENDING
OPEN_OK 14 BLE 245DFC020000
OPEN_OK 18 UTXM 245DFC020000
LC3_MEDIA_START 18 SOURCE 8 CONTEXT 0
ABS_VOL 18 197
status
STATE CONNECTABLE[ON] DISCOVERABLE[IDLE] ADVERTISING[ON] SCAN_UNI[OFF]
LINK 14 CONNECTED BLE 245DFC020000 MTU 250
LINK 18 CONNECTED UTXM 245DFC020000 STREAMING APTX GAME_WITH_VBC SNK_RATE 48000 SNK_SDU_INT 5000 SNK_SDU_SIZE 205 SNK_RTN 3 SNK_P_DELAY 6400 SNK_MAX_LAT 5 SRC_RATE 16000 SRC_SDU_INT 5000 SRC_SDU_SIZE 40 SRC_RTN 7 SRC_P_DELAY 33000 SRC_MAX_LAT 9
OK

open 245DFC020010 utxm
PENDING
OPEN_OK 24 BLE 245DFC020010
OPEN_OK 28 UTXM 245DFC020010
LC3_MEDIA_START 28 SOURCE 9 CONTEXT 0

status
STATE CONNECTABLE[ON] DISCOVERABLE[IDLE] ADVERTISING[ON] SCAN_UNI[OFF]
LINK 14 CONNECTED BLE 245DFC020000 MTU 250
LINK 18 CONNECTED UTXM 245DFC020000 STREAMING APTX GAME_WITH_VBC SNK_RATE 48000 SNK_SDU_INT 5000 SNK_SDU_SIZE 205 SNK_RTN 3 SNK_P_DELAY 6400 SNK_MAX_LAT 5 SRC_RATE 16000 SRC_SDU_INT 5000 SRC_SDU_SIZE 40 SRC_RTN 7 SRC_P_DELAY 33000 SRC_MAX_LAT 9
LINK 24 CONNECTED BLE 245DFC020010 MTU 250
LINK 28 CONNECTED UTXM 245DFC020010 STREAMING APTX GAME_WITH_VBC SNK_RATE 48000 SNK_SDU_INT 5000 SNK_SDU_SIZE 205 SNK_RTN 3 SNK_P_DELAY 6400 SNK_MAX_LAT 5 SRC_RATE 16000 SRC_SDU_INT 5000 SRC_SDU_SIZE 40 SRC_RTN 7 SRC_P_DELAY 33000 SRC_MAX_LAT 9
OK

Board2:

restore
IOT747 Copyright 2022
AudioAgent IDC777 V3.1.70
Build: 0400427b
Bluetooth address 245DFC020000
Ready
aptX Lossless: ON
PAIR_PENDING
set CODEC=OFF OFF OFF OFF OFF OFF OFF ON ON
OK
write
OK
reset
IOT747 Copyright 2022
AudioAgent IDC777 V3.1.70
Build: 0400427b
Bluetooth address 245DFC020000
Ready
aptX Lossless: ON
PAIR_PENDING
PAIR_OK 245DFC02157A
PAIR_OK_LE 245DFC02157A
OPEN_OK 14 BLE 245DFC02157A
OPEN_OK 16 URXM 245DFC02157A
LC3_MEDIA_START 16 SOURCE 5 CONTEXT 8
ABS_VOL 16 197
status
STATE CONNECTABLE[ON] DISCOVERABLE[OFF] ADVERTISING[ON] SCAN_UNI[OFF]
LINK 14 CONNECTED BLE 245DFC02157A MTU 250
LINK 16 CONNECTED URXM 245DFC02157A STREAMING APTX GAME_WITH_VBC SNK_RATE 48000 SNK_SDU_INT 5000 SNK_SDU_SIZE 205 SNK_P_DELAY 6400 SNK_TRANS_LAT 3162 SRC_RATE 16000 SRC_SDU_INT 5000 SRC_SDU_SIZE 40 SRC_P_DELAY 33000 SRC_TRANS_LAT 8162
OK