Unable to make cadmus work in Linuxmint 20.2

Issue: I have installed cadmus using the .deb package on linuxmint 20.2. Upon starting the application and selecting the mic input from the menu, the denoise virtual device fails to get created. It's not seen in the PulseAudio input device list. Trying to start the device from the command line and performing the same action of adding the mic device in strace mode, below error could be noted:

execve("/opt/cadmus/cadmus", ["/opt/cadmus/cadmus"], 0x7ffefa251190 /* 65 vars */) = 0
brk(NULL)                               = 0x14c3000
arch_prctl(0x3001 /* ARCH_??? */, 0x7fffeb2f4070) = -1 EINVAL (Invalid argument)
access("/etc/ld.so.preload", R_OK)      = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=155366, ...}) = 0
mmap(NULL, 155366, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7fea2cf97000
close(3)                                = 0
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libdl.so.2", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0 \22\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0644, st_size=18816, ...}) = 0
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea2cf95000
mmap(NULL, 20752, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fea2cf8f000
mmap(0x7fea2cf90000, 8192, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1000) = 0x7fea2cf90000
mmap(0x7fea2cf92000, 4096, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x3000) = 0x7fea2cf92000
mmap(0x7fea2cf93000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x3000) = 0x7fea2cf93000
close(3)                                = 0
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libz.so.1", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\200\"\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0644, st_size=108936, ...}) = 0
mmap(NULL, 110776, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fea2cf73000
mprotect(0x7fea2cf75000, 98304, PROT_NONE) = 0
mmap(0x7fea2cf75000, 69632, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0x7fea2cf75000
mmap(0x7fea2cf86000, 24576, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x13000) = 0x7fea2cf86000
mmap(0x7fea2cf8d000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x19000) = 0x7fea2cf8d000
close(3)                                = 0
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\360q\2\0\0\0\0\0"..., 832) = 832
pread64(3, "\6\0\0\0\4\0\0\0@\0\0\0\0\0\0\0@\0\0\0\0\0\0\0@\0\0\0\0\0\0\0"..., 784, 64) = 784
pread64(3, "\4\0\0\0\20\0\0\0\5\0\0\0GNU\0\2\0\0\300\4\0\0\0\3\0\0\0\0\0\0\0", 32, 848) = 32
pread64(3, "\4\0\0\0\24\0\0\0\3\0\0\0GNU\0\316x.\316\10\320\210\347~\352\334\10o\204\324\210"..., 68, 880) = 68
fstat(3, {st_mode=S_IFREG|0755, st_size=2029224, ...}) = 0
pread64(3, "\6\0\0\0\4\0\0\0@\0\0\0\0\0\0\0@\0\0\0\0\0\0\0@\0\0\0\0\0\0\0"..., 784, 64) = 784
pread64(3, "\4\0\0\0\20\0\0\0\5\0\0\0GNU\0\2\0\0\300\4\0\0\0\3\0\0\0\0\0\0\0", 32, 848) = 32
pread64(3, "\4\0\0\0\24\0\0\0\3\0\0\0GNU\0\316x.\316\10\320\210\347~\352\334\10o\204\324\210"..., 68, 880) = 68
mmap(NULL, 2036952, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fea2cd81000
mprotect(0x7fea2cda6000, 1847296, PROT_NONE) = 0
mmap(0x7fea2cda6000, 1540096, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x25000) = 0x7fea2cda6000
mmap(0x7fea2cf1e000, 303104, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x19d000) = 0x7fea2cf1e000
mmap(0x7fea2cf69000, 24576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1e7000) = 0x7fea2cf69000
mmap(0x7fea2cf6f000, 13528, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7fea2cf6f000
close(3)                                = 0
mmap(NULL, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fea2cd7e000
arch_prctl(ARCH_SET_FS, 0x7fea2cd7e740) = 0
mprotect(0x7fea2cf69000, 12288, PROT_READ) = 0
mprotect(0x7fea2cf8d000, 4096, PROT_READ) = 0
mprotect(0x7fea2cf93000, 4096, PROT_READ) = 0
mprotect(0x7fea2cfea000, 4096, PROT_READ) = 0
munmap(0x7fea2cf97000, 155366)          = 0
brk(NULL)                               = 0x14c3000
brk(0x14e4000)                          = 0x14e4000
readlink("/proc/self/exe", "/opt/cadmus/cadmus", 4096) = 18
openat(AT_FDCWD, "/opt/cadmus/cadmus", O_RDONLY) = 3
fstat(3, {st_mode=S_IFREG|0755, st_size=1279952, ...}) = 0
fstat(3, {st_mode=S_IFREG|0755, st_size=1279952, ...}) = 0
lseek(3, 1277952, SEEK_SET)             = 1277952
read(3, ".rela.plt\0.init\0.text\0.fini\0.rod"..., 2000) = 2000
lseek(3, 1273856, SEEK_SET)             = 1273856
read(3, "\351\265\0\0\0)\2\372\20fbs_runtime._fbs)\3r\6\0\0\0"..., 4096) = 4096
read(3, ".rela.plt\0.init\0.text\0.fini\0.rod"..., 4096) = 2000
lseek(3, 1273856, SEEK_SET)             = 1273856
read(3, "\351\265\0\0\0)\2\372\20fbs_runtime._fbs)\3r\6\0\0\0"..., 4096) = 4096
close(3)                                = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x7fea2cd7ea10) = 25795
rt_sigaction(SIGHUP, {sa_handler=0x404960, sa_mask=[HUP], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGINT, {sa_handler=0x404960, sa_mask=[INT], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGQUIT, {sa_handler=0x404960, sa_mask=[QUIT], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGILL, {sa_handler=0x404960, sa_mask=[ILL], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGTRAP, {sa_handler=0x404960, sa_mask=[TRAP], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGABRT, {sa_handler=0x404960, sa_mask=[ABRT], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGBUS, {sa_handler=0x404960, sa_mask=[BUS], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGFPE, {sa_handler=0x404960, sa_mask=[FPE], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGKILL, {sa_handler=0x404960, sa_mask=[KILL], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, 0x7fffeb2f0de0, 8) = -1 EINVAL (Invalid argument)
rt_sigaction(SIGUSR1, {sa_handler=0x404960, sa_mask=[USR1], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGSEGV, {sa_handler=0x404960, sa_mask=[SEGV], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGUSR2, {sa_handler=0x404960, sa_mask=[USR2], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGPIPE, {sa_handler=0x404960, sa_mask=[PIPE], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGALRM, {sa_handler=0x404960, sa_mask=[ALRM], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGTERM, {sa_handler=0x404960, sa_mask=[TERM], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGSTKFLT, {sa_handler=0x404960, sa_mask=[STKFLT], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGCONT, {sa_handler=0x404960, sa_mask=[CONT], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGSTOP, {sa_handler=0x404960, sa_mask=[STOP], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, 0x7fffeb2f0de0, 8) = -1 EINVAL (Invalid argument)
rt_sigaction(SIGTSTP, {sa_handler=0x404960, sa_mask=[TSTP], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGTTIN, {sa_handler=0x404960, sa_mask=[TTIN], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGTTOU, {sa_handler=0x404960, sa_mask=[TTOU], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGURG, {sa_handler=0x404960, sa_mask=[URG], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGXCPU, {sa_handler=0x404960, sa_mask=[XCPU], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGXFSZ, {sa_handler=0x404960, sa_mask=[XFSZ], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGVTALRM, {sa_handler=0x404960, sa_mask=[VTALRM], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGPROF, {sa_handler=0x404960, sa_mask=[PROF], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGWINCH, {sa_handler=0x404960, sa_mask=[WINCH], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGIO, {sa_handler=0x404960, sa_mask=[IO], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGPWR, {sa_handler=0x404960, sa_mask=[PWR], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGSYS, {sa_handler=0x404960, sa_mask=[SYS], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_2, {sa_handler=0x404960, sa_mask=[RT_2], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_3, {sa_handler=0x404960, sa_mask=[RT_3], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_4, {sa_handler=0x404960, sa_mask=[RT_4], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_5, {sa_handler=0x404960, sa_mask=[RT_5], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_6, {sa_handler=0x404960, sa_mask=[RT_6], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_7, {sa_handler=0x404960, sa_mask=[RT_7], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_8, {sa_handler=0x404960, sa_mask=[RT_8], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_9, {sa_handler=0x404960, sa_mask=[RT_9], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_10, {sa_handler=0x404960, sa_mask=[RT_10], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_11, {sa_handler=0x404960, sa_mask=[RT_11], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_12, {sa_handler=0x404960, sa_mask=[RT_12], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_13, {sa_handler=0x404960, sa_mask=[RT_13], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_14, {sa_handler=0x404960, sa_mask=[RT_14], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_15, {sa_handler=0x404960, sa_mask=[RT_15], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_16, {sa_handler=0x404960, sa_mask=[RT_16], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_17, {sa_handler=0x404960, sa_mask=[RT_17], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_18, {sa_handler=0x404960, sa_mask=[RT_18], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_19, {sa_handler=0x404960, sa_mask=[RT_19], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_20, {sa_handler=0x404960, sa_mask=[RT_20], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_21, {sa_handler=0x404960, sa_mask=[RT_21], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_22, {sa_handler=0x404960, sa_mask=[RT_22], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_23, {sa_handler=0x404960, sa_mask=[RT_23], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_24, {sa_handler=0x404960, sa_mask=[RT_24], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_25, {sa_handler=0x404960, sa_mask=[RT_25], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_26, {sa_handler=0x404960, sa_mask=[RT_26], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_27, {sa_handler=0x404960, sa_mask=[RT_27], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_28, {sa_handler=0x404960, sa_mask=[RT_28], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_29, {sa_handler=0x404960, sa_mask=[RT_29], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_30, {sa_handler=0x404960, sa_mask=[RT_30], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_31, {sa_handler=0x404960, sa_mask=[RT_31], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_32, {sa_handler=0x404960, sa_mask=[RT_32], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fea2cdc7210}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
wait4(25795, alsa_input.pci-0000_00_1f.3.analog-stereo
/home/xxxxx/.cache/cadmus/librnnoise_ladspa.so
Traceback (most recent call last):
  File "main.py", line 167, in <module>
  File "main.py", line 150, in enable_noise_suppression
  File "main.py", line 38, in load_modules
  File "pulsectl/pulsectl.py", line 655, in module_load
  File "contextlib.py", line 88, in __exit__
  File "pulsectl/pulsectl.py", line 482, in _pulse_op_cb
pulsectl.pulsectl.PulseOperationFailed: 2

This consistently happens even after trying to restart the application.

System details: Linux Mint 20.2 x86_64 Desktop env: Cinnamon Hardware: ThinkPad T580

Additional note:

When the app gets launched, its visible in the panel tray. But in the app menu, the suppression slider seems missing. At the time of failure, If trying to switch to another mic input source, it generates the below error:

alsa_input.platform-snd_aloop.0.analog-stereo
/home/xxxxxx/.cache/cadmus/librnnoise_ladspa.so
Traceback (most recent call last):
File "pulsectl/pulsectl.py", line 654, in module_load
File "pulsectl/_pulsectl.py", line 665, in _wrapper
pulsectl._pulsectl.LibPulse.CallError: ('pa_context_load_module', (<pulsectl._pulsectl.LP_PA_CONTEXT object at 
0x7f51c31eb0d0>, b'module-null-sink', b'sink_name=mic_denoised_out sink_properties="device.description=\'Cadmus 
Microphone Sink\'"', <CFunctionType object at 0x7f51c3f12d90>, None), <pulsectl._pulsectl.LP_PA_OPERATION object at 
0x7f51c31ebd90>, 'Bad state [pulse errno 15]')

In a very random way, the denoise device gets created sometimes, and the device appears to work until the laptop is restarted.

josh-richardson / cadmus

Unable to make cadmus work in Linuxmint 20.2 #75