Log regarding the 'no speech input detected' is below. Have, up to this point tried all of the recommended fixes (default 'recording' device,no AGC,allow app access etc) install/reinstall speech recognition files as suggested, re-trained speech recognition. Not sure what the particular issue may be?

08:03:39.090 : Set iRacing mode from previous launch
08:03:39.094 : Starting app. Version: 4.12.0.1
08:03:39.216 : Device name: Headphones (Rift Audio) Guid: {0.0.0.00000000}.{bc726a8a-37b1-49b4-82ba-c4a625e0708a} DeviceWaveId 0
08:03:39.217 : Device name: Headphones (Oculus Virtual Audio Device) Guid: {0.0.0.00000000}.{d2c8dc44-8458-429a-8693-72f966dc7de3} DeviceWaveId 1
08:03:39.218 : Detected saved message audio output device: Headphones (Rift Audio)
08:03:39.218 : Detected saved background audio output device: Headphones (Rift Audio)
08:03:39.269 : Device name: Microphone (Rift Audio) Guid: {0.0.1.00000000}.{b1d43ea4-3120-48bc-8bf0-0c2f0f5ecf62} DeviceWaveId 0
08:03:39.269 : Unable to find saved audio input device, using default: Microphone (Rift Audio)
08:03:39.377 : nAudio output interface: WAVEOUT
08:03:39.398 : Using sound pack version 175, driver names version 138 and personalisations version 139
08:03:39.410 : Preparing sound effects
08:03:39.415 : Prepare sound effects completed
08:03:39.415 : Preparing driver names
08:03:39.440 : Prepare driver names completed
08:03:39.441 : Preparing personalisations for selected name Robert
08:03:39.445 : Using spotter: Clare
08:03:39.445 : Spotter Clare has oval-specific sounds - these will be used for tracks marked as 'oval'
08:03:39.456 : Prepare personalisations completed
08:03:39.458 : Preparing voice messages
08:03:40.158 : Prepare voice message completed
08:03:40.159 : Finished preparing sounds cache, found 7975 driver names and 2947 sound sets. Loaded 421 message sounds
08:03:40.159 : 297 sounds have personalisations
08:03:40.205 : Reading driver name mappings
08:03:40.207 : Read 2164 driver name mappings
08:03:40.207 : Reading driver name mappings
08:03:40.208 : Read 422 driver name mappings
08:03:40.258 : Loading controller settings
08:03:40.258 : Load controller settings complete
08:03:40.273 : got language codes data countryToUse = "", langToUse = "en" langAndCountryToUse = ""
08:03:40.325 : Successfully initialised preferred System SRE
08:03:40.326 : Attempting to get recogniser for en
08:03:40.327 : Got SRE for en-US
08:03:40.336 : Speech engine initialized successfully.
08:03:40.336 : Loading all voice command alternatives from speech_recognition_config.txt
08:03:40.568 : Attempted to initialise speech engine - success = True
08:03:41.365 : Device Connected - Name: "Driving: Logitech G29 Driving Force Racing Wheel USB" GUID: "74ac8c20-0ce5-11e9-8005-444553540000"
08:03:41.370 : Device Connected - Name: "Keyboard" GUID: "6f1d2b61-d5a0-11cf-bfc7-444553540000"
08:03:41.377 : Device Connected - Name: "Supplemental: Logitech® G25 Pedals" GUID: "01fee740-b621-11ea-8001-444553540000"
08:03:41.393 : Checking for updates
08:03:41.832 : Got update data from primary URL: http://thecrewchief.org/
08:03:41.843 : Check for updates completed
08:03:45.089 : Took 4.93s to lazy load remaining message sounds, there are now 8981 loaded message sounds
08:04:01.857 : Pausing console scrolling
08:04:01.858 : Using game definition iRacing
08:04:01.860 : Loading user-configured command macros from Documents/CrewChiefV4/ folder
08:04:01.874 : Loading default command macros from installation folder
08:04:01.882 : Free text action macro, text = "Sorry, my bad" key presses to send = KEY_S, KEY_O, KEY_R, KEY_R, KEY_Y, OEM_COMMA, SPACE_BAR, KEY_M, KEY_Y, SPACE_BAR, KEY_B, KEY_A, KEY_D
08:04:01.882 : Free text action macro, text = "Good pass" key presses to send = KEY_G, KEY_O, KEY_O, KEY_D, SPACE_BAR, KEY_P, KEY_A, KEY_S, KEY_S
08:04:01.904 : Loaded 18 macro voice triggers into the speech recogniser
08:04:01.953 : Loaded 105 default car class definitions and 0 user defined car class definitions
08:04:01.987 : No user defined landmarks found
08:04:01.987 : Listening on default audio input device
08:04:01.988 : Running speech recognition in 'hold button' mode
08:04:01.990 : ThreadManager: Wating for root threads to start...
08:04:01.990 : ThreadManager: Root threads started
08:04:02.034 : serverTransmitMaxCars = 20
08:04:02.034 : is360HzTelemetry = False
08:04:02.036 : Starting queue monitor
08:04:02.037 : Monitor starting
08:04:02.529 : Playing sounds, events: COMPOUND_smoke_test_chief
08:04:02.529 : (radio_check/test)
08:04:02.869 : Loading user-configured chart subscriptions from Documents/CrewChiefV4/ folder
08:04:02.874 : Added 4 common subs to 30 game-specific subs
08:04:02.875 : Polling for shared data every 16ms
08:04:02.882 : Attempting to run game using
08:04:02.884 : InvalidOperationException starting game: Cannot start process because a file name has not been provided.
08:04:03.295 : There are 1 more events in the queue, playing them...
08:04:03.295 : Playing sounds, events: COMPOUND_smoke_test_spotter
08:04:03.295 : (radio_check_Clare/test)
08:04:04.655 : PlaybackModerator: Closing radio channel as Spotter
08:04:06.929 : Listening for voice command...
08:04:06.929 : Opened channel - waiting for speech
08:04:06.929 : Getting audio from nAudio input stream
08:04:07.153 : Invoking speech recognition...
08:04:07.153 : Cancelling wait for speech
08:04:09.197 : No speech input was detected
08:04:09.198 : PlaybackModerator: Opening radio channel as Chief
08:04:09.664 : Playing sounds, events: acknowledge/didnt_understand
08:04:09.664 : (acknowledge/didnt_understand)
08:04:11.034 : PlaybackModerator: Closing radio channel as Chief
08:04:12.103 : Listening for voice command...
08:04:12.103 : Opened channel - waiting for speech
08:04:12.103 : Getting audio from nAudio input stream
08:04:12.309 : Invoking speech recognition...
08:04:12.309 : Cancelling wait for speech
08:04:14.341 : No speech input was detected
08:04:14.341 : PlaybackModerator: Opening radio channel as Chief
08:04:14.804 : Playing sounds, events: acknowledge/didnt_understand
08:04:14.804 : (acknowledge/didnt_understand)
08:04:15.575 : PlaybackModerator: Closing radio channel as Chief
08:04:16.341 : Listening for voice command...
08:04:16.341 : Opened channel - waiting for speech
08:04:16.341 : Getting audio from nAudio input stream
08:04:16.547 : Invoking speech recognition...
08:04:16.547 : Cancelling wait for speech
08:04:18.581 : No speech input was detected
08:04:18.581 : PlaybackModerator: Opening radio channel as Chief
08:04:19.044 : Playing sounds, events: acknowledge/didnt_understand
08:04:19.044 : (acknowledge/didnt_understand)
08:04:19.965 : PlaybackModerator: Closing radio channel as Chief
08:04:28.801 : Resuming console scrolling
08:04:28.802 : Application stopped
08:04:28.804 : ThreadManager: Wating for Root threads to stop...
08:04:28.822 : Stopping queue monitor
08:04:28.823 : Waiting for queue monitor to stop...
08:04:28.823 : Monitor queue stopped
08:04:29.005 : ThreadManager: Root threads stopped
08:04:29.005 : ThreadManager: Wating for Temporary threads to stop...
08:04:29.005 : ThreadManager: Temporary threads stopped