Dear Nordic team,
I'm evaluating nRF5340 Audio DK for the use-case of broadcasting multiple streams; NCS v2.6.0-rc1.
Until now I've succeeded broadcasted 4 streams (LC4 bitrate set up to 48kbps) in NCS v2.2.0, now I've migrated the nrf5340_audio application (to ncs 2.6.0-RC1) and I obtain the error:
GW [00:00:00.457,550] <inf> bt_mgmt_ctlr_cfg: Controller: SoftDevice: Version 5.4 (0x0d), Revision 8584
GW [00:00:00.457,763] <inf> bt_mgmt: Local identity addr: F9:1F:05:AB:3A:5C (random)
GW [00:00:00.458,038] <inf> broadcast_source: Enabling broadcast_source NRF5340_BROADCASTER
GW [00:00:00.461,853] <inf> bt_mgmt_adv: Local addr: 04:E2:D2:83:D1:D1 (random)
GW [00:00:00.463,958] <inf> main: Ext adv ready
GW [00:00:00.463,958] <inf> broadcast_source: Starting broadcast source
GW [00:00:00.464,385] <wrn> bt_hci_core: opcode 0x2068 status 0x0d
GW [00:00:00.464,416] <wrn> broadcast_source: Failed to start broadcast, ret: -12
GW [00:00:00.464,416] <err> main: Failed to start broadcaster: -12
GW [00:00:00.464,416] <inf> bt_mgmt_adv: Advertising successfully started
As far as I understand, this is produced by the binary from the network core (flashed from the corresponding path: C:\ncs\v2.6.0-rc1\nrf\lib\bin\bt_ll_acs_nrf53\bin\).
So, is my assumption right? Were the 2 broadcasted streams limited somewhere between ncs v2.2 and v2.6? Am I missing some configuration or code change?
I'm attaching the prj.conf (modified)
# nRF5340 Audio
CONFIG_NRF5340_AUDIO=y
CONFIG_SAMPLE_RATE_CONVERTER=y
CONFIG_SAMPLE_RATE_CONVERTER_FILTER_SIMPLE=y
# Custom config
CONFIG_AUDIO_SOURCE_I2S=y
CONFIG_TRANSPORT_BIS=y
CONFIG_BT_ISO_MAX_CHAN=4
CONFIG_BT_ISO_TX_BUF_COUNT=4
CONFIG_BT_BAP_BROADCAST_SRC_STREAM_COUNT=4
CONFIG_BT_AUDIO_RETRANSMITS=1
CONFIG_BT_AUDIO_BROADCAST_CONFIGURABLE=y
CONFIG_BT_BAP_BROADCAST_16_2_1=y
CONFIG_BT_AUDIO_PREF_SAMPLE_RATE_16KHZ=y
CONFIG_AUDIO_SAMPLE_RATE_16000_HZ=y
CONFIG_AUDIO_BIT_DEPTH_16=y
CONFIG_LC3_ENC_CHAN_MAX=4
Thank you?