Question / Help After update Blackmagic Intensity.. Sound Stuttering *edit*

JonesAvenue

New Member
(edit)

I have a Blackmagic intensity set as my main audio input through mac system preferences, and set as the default input/mic for OBS. It has worked up until the update. Now when I click around outside of obs or initiate streaming or recording the audio begins to skip, stutter, lag etc. Any idea what could be causing this?
(/edit)


(Original issue after update below: Fixed by removing preset checkbox in the camera properties menu, and setting resolution and frame rate manually)

After updating OBS my camera input quit working.

I have a Canon XA-20 connected via HDMI to the BMD Intensity. Then thunderbolt out to the Mac. After the update I can both see and add the blackmagic as a video capture device but the screen is black and I have no audio coming through.

I would be happy to post logs or system specs if I knew what to share seeing as how it’s not a crash.

Thanks in advance

Maybe helpful information:

Intensity Shuttle TB:

Vendor Name: Blackmagic Design
Device Name: Intensity Shuttle TB
Vendor ID: 0x4
Device ID: 0xA126
Device Revision: 0x1
UID: 0x0004000000829000
Route String: 1
Firmware Version: 5.2
Port (Upstream):
Status: Device connected
Link Status: 0x2
Speed: Up to 10 Gb/s x1
Port Micro Firmware Version: 0.2.5
Cable Firmware Version: 1.0.16
Cable Serial Number: C4M70250279FQ7NAM


-----

Model Name: MacBook Pro
Model Identifier: MacBookPro11,1
Processor Name: Intel Core i5
Processor Speed: 2.6 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache (per Core): 256 KB
L3 Cache: 3 MB
Memory: 8 GB
Boot ROM Version: 149.0.0.0.0
SMC Version (system): 2.16f68
Serial Number (system): C02N54EFG3QJ
Hardware UUID: A4C06D51-8DD2-5CAB-AF77-FF0C4E09398E

---

v10.14.3 Mojave


-----LOG

1:29:25.771: CPU Name: Intel(R) Core(TM) i5-4278U CPU @ 2.60GHz
11:29:25.771: CPU Speed: 2600MHz
11:29:25.771: Physical Cores: 2, Logical Cores: 4
11:29:25.771: Physical Memory: 8192MB Total
11:29:25.771: OS Name: Mac OS X (NSMACHOperatingSystem)
11:29:25.771: OS Version: Version 10.14.3 (Build 18D109)
11:29:25.771: Kernel Version: 18.2.0
11:29:25.775: hotkeys-cocoa: Using layout 'com.apple.keylayout.US'
11:29:25.776: Portable mode: false
11:29:26.058: OBS 23.0.1 (mac)
11:29:26.058: ---------------------------------
11:29:26.061: ---------------------------------
11:29:26.061: audio settings reset:
11:29:26.061: samples per sec: 44100
11:29:26.061: speakers: 2
11:29:26.068: ---------------------------------
11:29:26.068: Initializing OpenGL...
11:29:26.100: Loading up OpenGL on adapter Intel Inc. Intel Iris OpenGL Engine
11:29:26.100: OpenGL loaded successfully, version 4.1 INTEL-12.4.7, shading language 4.10
11:29:26.238: ---------------------------------
11:29:26.239: video settings reset:
11:29:26.239: base resolution: 1280x720
11:29:26.239: output resolution: 1280x720
11:29:26.239: downscale filter: Bicubic
11:29:26.239: fps: 24000/1001
11:29:26.239: format: NV12
11:29:26.239: YUV mode: 601/Partial
11:29:26.239: NV12 texture support not available
11:29:26.241: Audio monitoring device:
11:29:26.241: name: Default
11:29:26.241: id: default
11:29:26.241: ---------------------------------
11:29:26.287: Failed to load 'en-US' text for module: 'decklink-ouput-ui.so'
11:29:26.348: os_dlopen(libpython3.6m.dylib->libpython3.6m.dylib): dlopen(libpython3.6m.dylib, 1): image not found
11:29:26.348:
11:29:26.348: [Python] Could not load library: libpython3.6m.dylib
11:29:26.583: [VideoToolbox encoder]: Adding VideoToolbox H264 encoders
11:29:26.656: [obs-browser]: Version 2.3.0
11:29:26.744: os_dlopen(/Applications/VLC.app/Contents/MacOS/lib/libvlccore.dylib->/Applications/VLC.app/Contents/MacOS/lib/libvlccore.dylib): dlopen(/Applications/VLC.app/Contents/MacOS/lib/libvlccore.dylib, 1): image not found
11:29:26.744:
11:29:26.744: Couldn't find VLC installation, VLC video source disabled
11:29:26.745: Ignoring old obs-browser.so version
11:29:26.745: ---------------------------------
11:29:26.745: Loaded Modules:
11:29:26.745: vlc-video.so
11:29:26.745: text-freetype2.so
11:29:26.745: rtmp-services.so
11:29:26.745: obs-x264.so
11:29:26.745: obs-vst.so
11:29:26.745: obs-transitions.so
11:29:26.745: obs-outputs.so
11:29:26.745: obs-filters.so
11:29:26.745: obs-ffmpeg.so
11:29:26.745: obs-browser.so
11:29:26.745: mac-vth264.so
11:29:26.745: mac-syphon.so
11:29:26.745: mac-decklink.so
11:29:26.745: mac-capture.so
11:29:26.745: mac-avcapture.so
11:29:26.745: linux-jack.so
11:29:26.745: image-source.so
11:29:26.745: frontend-tools.so
11:29:26.745: decklink-ouput-ui.so
11:29:26.745: coreaudio-encoder.so
11:29:26.745: ---------------------------------
11:29:26.746: ==== Startup complete ===============================================
11:29:27.207: All scene data cleared
11:29:27.207: ------------------------------------------------
11:29:27.255: coreaudio: device 'Built-in Microphone' initialized
11:29:27.320: [Media Source 'Week 4 Love']: settings:
11:29:27.320: input: /Users/admin/Desktop/week4love.mp4
11:29:27.320: input_format: (null)
11:29:27.320: speed: 100
11:29:27.320: is_looping: no
11:29:27.320: is_hw_decoding: no
11:29:27.320: is_clear_on_media_end: yes
11:29:27.320: restart_on_activate: yes
11:29:27.320: close_when_inactive: no
11:29:27.321: MP: Failed to open media: '/Users/admin/Desktop/week4love.mp4'
11:29:27.329: [Media Source 'youve got this']: settings:
11:29:27.329: input: /Users/admin/Dropbox/Sermons/YouGotThis-HighDefMP4.mp4
11:29:27.329: input_format: (null)
11:29:27.329: speed: 100
11:29:27.329: is_looping: no
11:29:27.329: is_hw_decoding: no
11:29:27.329: is_clear_on_media_end: yes
11:29:27.329: restart_on_activate: yes
11:29:27.329: MP: Failed to open media: '/Users/admin/Dropbox/Sermons/YouGotThis-HighDefMP4.mp4'
11:29:27.329: close_when_inactive: no
11:29:27.329: MP: Failed to open media: '/Users/admin/Dropbox/Sermons/YouGotThis-HighDefMP4.mp4'
11:29:27.330: [Media Source 'Countdown Video']: settings:
11:29:27.330: input: /Users/admin/Documents/Countdown - 7374.mp4
11:29:27.330: input_format: (null)
11:29:27.330: speed: 74
11:29:27.330: is_looping: no
11:29:27.330: is_hw_decoding: no
11:29:27.330: is_clear_on_media_end: yes
11:29:27.330: restart_on_activate: yes
11:29:27.330: close_when_inactive: no
11:29:27.344: Webcam C920: Selected device 'USB Camera'
11:29:27.347: Webcam C920: Using preset 1280x720
11:29:33.084: adding 46 milliseconds of audio buffering, total audio buffering is now 46 milliseconds (source: Mic/Aux)
11:29:33.084:
11:29:37.423: [Media Source 'Intro Logo Black']: settings:
11:29:37.423: input: /Users/admin/Documents/v1.mp4
11:29:37.423: input_format: (null)
11:29:37.423: speed: 75
11:29:37.423: is_looping: yes
11:29:37.423: is_hw_decoding: no
11:29:37.423: is_clear_on_media_end: yes
11:29:37.423: restart_on_activate: yes
11:29:37.423: close_when_inactive: no
11:29:37.480: Video Capture Device: Selected device 'Blackmagic Intensity Shuttle Thunderbolt'
11:29:37.480: Video Capture Device: Using preset 1280x720
11:29:37.523: Switched to scene 'Main Camera'
11:29:37.523: ------------------------------------------------
11:29:37.523: Loaded scenes:
11:29:37.523: - scene 'Main Camera':
11:29:37.523: - source: 'Video Capture Device' (av_capture_input)
11:29:37.523: - scene 'Webcam alt+2':
11:29:37.524: - source: 'Webcam C920' (av_capture_input)
11:29:37.524: - filter: 'Video Delay (Async)' (async_delay_filter)
11:29:37.524: - filter: 'Color Correction' (color_filter)
11:29:37.524: - source: 'Window Capture' (window_capture)
11:29:37.524: - filter: 'Crop/Pad' (crop_filter)
11:29:37.524: - source: 'Acorn Overlay' (image_source)
11:29:37.524: - scene 'EpocCameraTest alt+3':
11:29:37.524: - source: 'Week 4 Love' (ffmpeg_source)
11:29:37.524: - monitoring: monitor and output
11:29:37.524: - source: 'Webcam C920' (av_capture_input)
11:29:37.524: - filter: 'Video Delay (Async)' (async_delay_filter)
11:29:37.524: - filter: 'Color Correction' (color_filter)
11:29:37.524: - scene 'Powerpoint alt+4':
11:29:37.524: - source: 'Window Capture' (window_capture)
11:29:37.524: - filter: 'Crop/Pad' (crop_filter)
11:29:37.524: - scene 'Animated Logo alt+5':
11:29:37.524: - source: 'Intro Logo Black' (ffmpeg_source)
11:29:37.524: - scene 'Stationary Logo alt+6':
11:29:37.524: - source: 'Image' (image_source)
11:29:37.524: - scene 'Countdown Intro alt+7':
11:29:37.524: - source: 'youve got this' (ffmpeg_source)
11:29:37.524: - source: 'Countdown Video' (ffmpeg_source)
11:29:37.524: ------------------------------------------------
11:30:23.634: Video Capture Device: Selected preset AVCaptureSessionPreset1280x720
11:30:25.355: User switched to scene 'Webcam alt+2'
11:30:25.386: A sprite cannot be drawn without a width/height
11:30:25.426: A sprite cannot be drawn without a width/height
11:30:26.670: User switched to scene 'EpocCameraTest alt+3'
11:30:27.352: User switched to scene 'Powerpoint alt+4'
11:30:27.976: User switched to scene 'Animated Logo alt+5'
11:30:28.562: User switched to scene 'Stationary Logo alt+6'
11:30:28.997: User switched to scene 'Countdown Intro alt+7'
11:30:30.149: User switched to scene 'Main Camera'
12:09:37.038: adding 23 milliseconds of audio buffering, total audio buffering is now 69 milliseconds (source: Mic/Aux)
12:09:37.038:
 
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