Hello. After solve this issue https://lists.freedesktop.org/archives/pulseaudio-discuss/2017-November/029023.html I have next.problem. In HSP profile voice quality is very poor (only on BCM4354 chip. In Asus BT-400 quality is good). After play wav file, sound run slowly (in A2DP speed is normal). I have BCM4354 chip. [root at localhost ~]# hciconfig -a hci1: Type: BR/EDR Bus: UART BD Address: C0:97:27:4C:2E:65 ACL MTU: 1021:8 SCO MTU: 64:1 UP RUNNING PSCAN RX bytes:24493015 acl:94 sco:382514 events:1122 errors:0 TX bytes:19902340 acl:95 sco:382499 commands:809 errors:0 Features: 0xbf 0xfe 0xcf 0xfe 0xdb 0xff 0x7b 0x87 Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3 Link policy: RSWITCH SNIFF Link mode: SLAVE ACCEPT Name: 'ARTIK10' Class: 0x0c0000 Service Classes: Rendering, Capturing Device Class: Miscellaneous, HCI Version: 4.1 (0x7) Revision: 0x1000 LMP Version: 4.1 (0x7) Subversion: 0x610c Manufacturer: Broadcom Corporation (15) hci0: Type: BR/EDR Bus: SDIO BD Address: 00:00:00:00:00:00 ACL MTU: 0:0 SCO MTU: 0:0 DOWN RX bytes:0 acl:0 sco:0 events:0 errors:0 TX bytes:0 acl:0 sco:0 commands:0 errors:0 Features: 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 Packet type: DM1 DH1 HV1 Link policy: Link mode: SLAVE ACCEPT I try : - change SCO MTU to 64:8, - use different parameter in command hcitool cmd 0x3F 0x01C X X X X X -change baudrate from 3000000 to 1500000 in brcm_patchram_plus script. ./brcm_patchram_plus --patchram BCM4354_003.001.012.0353.0745c_Samsung_Artik_ORC.hcd \ --no2bytes --baudrate 3000000 \ -d \ --use_baudrate_for_download /dev/ttySAC${TTY_NUM} \ --bd_addr ${BD_ADDR} \ --scopcm=1,2,0,0,0,0,0,0,0,0 \ --enable_hci > /dev/null & I have Asus BT-400, and there is everything OK (quality is good, speed is normal). [root at localhost ~]# hciconfig -a hci2: Type: BR/EDR Bus: USB BD Address: 5C:F3:70:72:F8:BB ACL MTU: 1021:8 SCO MTU: 64:1 UP RUNNING PSCAN RX bytes:583 acl:0 sco:0 events:33 errors:0 TX bytes:898 acl:0 sco:0 commands:33 errors:0 Features: 0xbf 0xfe 0xcf 0xfe 0xdb 0xff 0x7b 0x87 Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3 Link policy: RSWITCH SNIFF Link mode: SLAVE ACCEPT Name: 'ARTIK10' Class: 0x0c0000 Service Classes: Rendering, Capturing Device Class: Miscellaneous, HCI Version: 4.0 (0x6) Revision: 0x1000 LMP Version: 4.0 (0x6) Subversion: 0x220e Manufacturer: Broadcom Corporation (15) More info: [root at localhost ~]# uname -a Linux localhost 3.10.93-dirty #1 SMP PREEMPT Mon Sep 4 15:39:15 CEST 2017 armv7l armv7l armv7l GNU/Linux [root at localhost ~]# lsmod Module Size Used by ip6t_rpfilter 1550 1 ip6t_REJECT 2706 2 ipt_REJECT 2369 2 rfcomm 32430 7 hci_uart 21843 1 ebtable_nat 1656 1 ebtable_broute 1373 1 bridge 91458 1 ebtable_broute ebtable_filter 1702 1 ebtables 17617 3 ebtable_broute,ebtable_nat,ebtable_filter ip6table_nat 2685 1 nf_conntrack_ipv6 8069 8 nf_defrag_ipv6 14454 1 nf_conntrack_ipv6 nf_nat_ipv6 3622 1 ip6table_nat ip6table_mangle 1611 1 ip6table_raw 1270 1 ip6table_filter 1472 1 ip6_tables 11392 4 ip6table_filter,ip6table_mangle,ip6table_nat,ip6table_raw iptable_raw 1321 1 iptable_nat 2537 1 nf_conntrack_ipv4 13743 7 nf_defrag_ipv4 1244 1 nf_conntrack_ipv4 nf_nat_ipv4 3512 1 iptable_nat nf_nat 15371 4 nf_nat_ipv4,nf_nat_ipv6,ip6table_nat,iptable_nat iptable_mangle 1482 1 iptable_filter 1523 1 bnep 10855 2 leds_pca9632 2071 0 leds_pca963x 1848 0 smsc95xx 17900 0 usbnet 22141 1 smsc95xx hid_cp2112 11909 0 hid_generic 954 0 btusb 15997 0 snd_soc_artik_ak4953 3467 3 cp210x 9353 1 usbhid 20253 0 bcm4354 5540 0 snd_soc_i2s 14483 2 snd_soc_lpass 13073 1 snd_soc_i2s snd_soc_s3c24xx 5032 2 snd_soc_i2s,snd_soc_lpass spidev 5496 0 snd_soc_ak4953 19021 1 btsdio 2842 0 bluetooth 210761 56 bnep,btusb,btsdio,hci_uart,rfcomm dhd 746331 0 cfg80211 393598 1 dhd rfkill 17000 8 dhd,cfg80211,bcm4354,bluetooth ip_tables 11092 4 iptable_filter,iptable_mangle,iptable_nat,iptable_raw [root at localhost bluetooth]#.stty -a -F /dev/ttySAC2 speed 3000000 baud; rows 0; columns 0; line = 15; intr = ^C; quit = ^\; erase = ^?; kill = ^U; eof = ^D; eol = <undef>; eol2 = <undef>; swtch = <undef>; start = ^Q; stop = ^S; susp = ^Z; rprnt = ^R; werase = ^W; lnext = ^V; flush = ^O; min = 1; time = 0; -parenb -parodd -cmspar cs8 -hupcl -cstopb cread clocal crtscts -ignbrk -brkint -ignpar -parmrk -inpck -istrip -inlcr -igncr -icrnl -ixon -ixoff -iuclc -ixany -imaxbel -iutf8 -opost -olcuc -ocrnl onlcr -onocr -onlret -ofill -ofdel nl0 cr0 tab0 bs0 vt0 ff0 -isig -icanon -iexten -echo echoe echok -echonl -noflsh -xcase -tostop -echoprt echoctl echoke In device specyfication I have: 1.5x channel high-speed UART (up to 3 Mbps data rate for Bluetooth 2.1 EDR and IrDA 1.0 SIR) Any suggestions? -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://lists.freedesktop.org/archives/pulseaudio-discuss/attachments/20171130/b1e67534/attachment.html>