Question / Help Awful Audio Lag

Matteo897

New Member
Hello,
I had another live streaming and the audio of my guests had a lag.

Maybe my audio settings are wrong?

Both guests were connecte via skype (group call) and I had just one audio activated, otherwise there would be an echo.

Here's the log.

Code:
19:50:45.001: CPU Name: Intel(R) Core(TM) i7-8850H CPU @ 2.60GHz
19:50:45.001: CPU Speed: 2600MHz
19:50:45.001: Physical Cores: 6, Logical Cores: 12
19:50:45.001: Physical Memory: 16384MB Total
19:50:45.001: OS Name: Mac OS X (NSMACHOperatingSystem)
19:50:45.001: OS Version: Version 10.13.6 (Build 17G7024)
19:50:45.001: Kernel Version: 17.7.0
19:50:45.006: hotkeys-cocoa: Using layout 'com.apple.keylayout.Italian-Pro'
19:50:45.007: Portable mode: false
19:50:45.101: OBS 24.0.6 (mac)
19:50:45.101: ---------------------------------
19:50:45.103: ---------------------------------
19:50:45.103: audio settings reset:
19:50:45.103:     samples per sec: 44100
19:50:45.103:     speakers:        2
19:50:45.104: ---------------------------------
19:50:45.104: Initializing OpenGL...
19:50:45.918: Loading up OpenGL on adapter ATI Technologies Inc. AMD Radeon Pro 560X OpenGL Engine
19:50:45.918: OpenGL loaded successfully, version 4.1 ATI-1.68.22, shading language 4.10
19:50:46.010: ---------------------------------
19:50:46.010: video settings reset:
19:50:46.010:     base resolution:   1920x1080
19:50:46.010:     output resolution: 960x540
19:50:46.010:     downscale filter:  Bicubic
19:50:46.010:     fps:               30/1
19:50:46.010:     format:            NV12
19:50:46.010:     YUV mode:          601/Partial
19:50:46.010: NV12 texture support not available
19:50:46.011: Audio monitoring device:
19:50:46.011:     name: Predefinito
19:50:46.011:     id: default
19:50:46.011: ---------------------------------
19:50:46.013: Failed to load 'en-US' text for module: 'decklink-ouput-ui.so'
19:50:46.019: os_dlopen(libpython3.7m.dylib->libpython3.7m.dylib): dlopen(libpython3.7m.dylib, 257): image not found
19:50:46.019:
19:50:46.019: [Python] Could not load library: libpython3.7m.dylib
19:50:46.084: No blackmagic support
19:50:46.154: [VideoToolbox encoder]: Adding VideoToolbox H264 encoders
19:50:46.168: [obs-browser]: Version 2.7.16
19:50:46.178: VLC found, VLC video source enabled
19:50:46.180: Failed to load 'it-IT' text for module: 'obs-ndi.so'
19:50:46.180: [obs-ndi] hello ! (version 4.7.1)
19:50:46.180: [obs-ndi] Trying ''
19:50:46.180: [obs-ndi] Trying '/usr/lib'
19:50:46.180: [obs-ndi] Trying '/usr/local/lib'
19:50:46.180: [obs-ndi] Found NDI library at '/usr/local/lib/libndi.4.dylib'
19:50:46.182: [obs-ndi] NDI runtime loaded successfully
19:50:46.183: [obs-ndi] NDI library initialized successfully (NDI SDK APPLE 19:20:53 Sep 16 2019 4.0.1)
19:50:46.193: ---------------------------------
19:50:46.193:   Loaded Modules:
19:50:46.193:     obs-ndi.so
19:50:46.193:     vlc-video.so
19:50:46.193:     text-freetype2.so
19:50:46.193:     rtmp-services.so
19:50:46.193:     obs-x264.so
19:50:46.193:     obs-vst.so
19:50:46.193:     obs-transitions.so
19:50:46.193:     obs-outputs.so
19:50:46.193:     obs-libfdk.so
19:50:46.194:     obs-filters.so
19:50:46.194:     obs-ffmpeg.so
19:50:46.194:     obs-browser.so
19:50:46.194:     mac-vth264.so
19:50:46.194:     mac-syphon.so
19:50:46.194:     mac-decklink.so
19:50:46.194:     mac-capture.so
19:50:46.194:     mac-avcapture.so
19:50:46.194:     linux-jack.so
19:50:46.194:     image-source.so
19:50:46.194:     frontend-tools.so
19:50:46.194:     decklink-ouput-ui.so
19:50:46.194:     coreaudio-encoder.so
19:50:46.194: ---------------------------------
19:50:46.194: os_dlopen(../obs-plugins/obs-browser->../obs-plugins/obs-browser.so): dlopen(../obs-plugins/obs-browser.so, 257): image not found
19:50:46.194:
19:50:46.194: ==== Startup complete ===============================================
19:50:46.227: Switched to Preview/Program mode
19:50:46.227: ------------------------------------------------
19:50:46.235: All scene data cleared
19:50:46.235: ------------------------------------------------
19:50:46.278: coreaudio: device 'External Microphone' initialized
19:50:46.278: [Media Source 'FALSO']: settings:
19:50:46.278:     input:                   /Users/matteof/Documents/Matteo/LIVE/TIME-OUT/video_efx/FALSO.mov
19:50:46.278:     input_format:            (null)
19:50:46.278:     speed:                   100
19:50:46.278:     is_looping:              no
19:50:46.278:     is_hw_decoding:          no
19:50:46.278:     is_clear_on_media_end:   yes
19:50:46.278:     restart_on_activate:     no
19:50:46.278:     close_when_inactive:     no
19:50:46.314: [Media Source 'VERO']: settings:
19:50:46.314:     input:                   /Users/matteof/Documents/Matteo/LIVE/TIME-OUT/video_efx/VERO.mov
19:50:46.314:     input_format:            (null)
19:50:46.314:     speed:                   100
19:50:46.314:     is_looping:              no
19:50:46.314:     is_hw_decoding:          no
19:50:46.314:     is_clear_on_media_end:   yes
19:50:46.314:     restart_on_activate:     no
19:50:46.314:     close_when_inactive:     no
19:50:46.319: adding 23 milliseconds of audio buffering, total audio buffering is now 23 milliseconds (source: Microfono/disp. ausiliario)
19:50:46.319:
19:50:46.371: [Media Source 'animale_sigla']: settings:
19:50:46.371:     input:                   /Users/matteof/Documents/Matteo/LIVE/TIME-OUT/opening/Animale_Strano.m4v
19:50:46.371:     input_format:            (null)
19:50:46.371:     speed:                   100
19:50:46.371:     is_looping:              no
19:50:46.371:     is_hw_decoding:          no
19:50:46.371:     is_clear_on_media_end:   yes
19:50:46.371:     restart_on_activate:     yes
19:50:46.371:     close_when_inactive:     no
19:50:46.378: [Media Source 'satelliti_sigla']: settings:
19:50:46.378:     input:                   /Users/matteof/Documents/Matteo/LIVE/TIME-OUT/opening/Satelliti.m4v
19:50:46.378:     input_format:            (null)
19:50:46.378:     speed:                   100
19:50:46.378:     is_looping:              no
19:50:46.378:     is_hw_decoding:          no
19:50:46.378:     is_clear_on_media_end:   yes
19:50:46.378:     restart_on_activate:     yes
19:50:46.378:     close_when_inactive:     no
19:50:46.428: [obs-ndi] started A/V threads for source 'MBPMF-3.LOCAL ([Skype - live]eleazaro82)'
19:50:46.430: [obs-ndi] A/V thread for 'video_eleazaro_2' started
19:50:46.437: matteo_2: Selected device 'FaceTime HD Camera'
19:50:46.440: matteo_2: Using preset 1280x720
19:50:46.517: [obs-ndi] started A/V threads for source 'MBPMF-3.LOCAL (Skype - momokabanana)'
19:50:46.517: [obs-ndi] A/V thread for 'video_ospite 2' started
19:50:46.518: [obs-ndi] started A/V threads for source 'MBPMF-3.LOCAL ([Skype - live] cid 63f3f4aafb85b50b)'
19:50:46.518: [obs-ndi] A/V thread for 'video_schiaffazzi' started
19:50:46.528: [Media Source 'Fonte multimediale 2']: settings:
19:50:46.528:     input:                   /Users/matteof/Documents/Matteo/Comedy/Eleazaro LouisCK/EleazaroLouiSLOW-HD 1080p.mov
19:50:46.528:     input_format:            (null)
19:50:46.528:     speed:                   100
19:50:46.528:     is_looping:              no
19:50:46.528:     is_hw_decoding:          no
19:50:46.528:     is_clear_on_media_end:   yes
19:50:46.528:     restart_on_activate:     yes
19:50:46.528:     close_when_inactive:     no
19:50:46.543: [Media Source 'countdown_open']: settings:
19:50:46.543:     input:                   /Users/matteof/Documents/Matteo/LIVE/TIME-OUT/Countdown_2.m4v
19:50:46.543:     input_format:            (null)
19:50:46.543:     speed:                   100
19:50:46.543:     is_looping:              no
19:50:46.543:     is_hw_decoding:          no
19:50:46.543:     is_clear_on_media_end:   yes
19:50:46.543:     restart_on_activate:     yes
19:50:46.543:     close_when_inactive:     yes
19:50:46.544: [Media Source 'music background']: settings:
19:50:46.544:     input:                   /Users/matteof/Documents/Matteo/LIVE/TIME-OUT/Fifth Avenue Stroll.caf
19:50:46.544:     input_format:            (null)
19:50:46.544:     speed:                   100
19:50:46.544:     is_looping:              yes
19:50:46.544:     is_hw_decoding:          no
19:50:46.544:     is_clear_on_media_end:   no
19:50:46.544:     restart_on_activate:     yes
19:50:46.544:     close_when_inactive:     yes
19:50:46.580: [obs-ndi] started A/V threads for source 'MBPMF-3.LOCAL ([Skype - live]eleazaro82)'
19:50:46.580: [obs-ndi] A/V thread for 'Eleazaro_video' started
19:50:46.646: MATTEO: Selected device 'FaceTime HD Camera'
19:50:46.646: MATTEO: Using preset 1280x720
19:50:46.654: [obs-ndi] started A/V threads for source 'MBPMF-3.LOCAL (Skype - momokabanana)'
19:50:46.654: [obs-ndi] A/V thread for 'ospite video' started
19:50:46.659: [obs-ndi] started A/V threads for source 'MBPMF-3.LOCAL ([Skype - live]eleazaro82)'
19:50:46.659: [obs-ndi] A/V thread for 'ele_video_2' started
19:50:46.665: [obs-ndi] started A/V threads for source 'MBPMF-3.LOCAL (Skype - Interlocutore attivo)'
19:50:46.665: [obs-ndi] A/V thread for 'ele_solo' started
19:50:46.666: [Media Source 'sigla']: settings:
19:50:46.666:     input:                   /Users/matteof/Documents/Matteo/LIVE/TIME-OUT/opening/ComedyMaybeOpening-Untitled MPEG-4.mp4
19:50:46.666:     input_format:            (null)
19:50:46.666:     speed:                   100
19:50:46.666:     is_looping:              no
19:50:46.666:     is_hw_decoding:          no
19:50:46.666:     is_clear_on_media_end:   yes
19:50:46.666:     restart_on_activate:     yes
19:50:46.666:     close_when_inactive:     no
19:50:46.702: [Media Source 'schiaffa_sigla']: settings:
19:50:46.702:     input:                   /Users/matteof/Documents/Matteo/LIVE/TIME-OUT/opening/Schiaffazzi.m4v
19:50:46.702:     input_format:            (null)
19:50:46.702:     speed:                   100
19:50:46.702:     is_looping:              no
19:50:46.702:     is_hw_decoding:          no
19:50:46.702:     is_clear_on_media_end:   yes
19:50:46.702:     restart_on_activate:     yes
19:50:46.702:     close_when_inactive:     no
19:50:46.715: coreaudio: device 'External Microphone' initialized
19:50:46.716: [obs-ndi] started A/V threads for source 'MBPMF-3.LOCAL (Skype - Interlocutore attivo)'
19:50:46.716: [obs-ndi] A/V thread for 'ospite_video_3' started
19:50:46.726: [Media Source '(null)']: settings:
19:50:46.726:     input:                   
19:50:46.726:     input_format:            (null)
19:50:46.726:     speed:                   100
19:50:46.726:     is_looping:              no
19:50:46.726:     is_hw_decoding:          no
19:50:46.726:     is_clear_on_media_end:   yes
19:50:46.726:     restart_on_activate:     yes
19:50:46.726:     close_when_inactive:     no
19:50:46.740: Switched to scene 'MATTEO + ELEAZARO'
19:50:46.742: ------------------------------------------------
19:52:32.638: coreaudio: device 'External Microphone' disconnected or changed.  attempting to reconnect
19:52:33.028: coreaudio: device 'External Microphone' disconnected or changed.  attempting to reconnect
19:52:34.649: coreaudio: device 'MacBook Pro Microphone' initialized
19:53:18.249: Settings changed (outputs)
19:53:18.249: ------------------------------------------------
 

Matteo897

New Member
More likely you're just a victim of Skype's implementation of NDI, which seems prone to causing audio and video to desync.

Yep! Unfortunately I agree to that!
Is there a way to “capture” multiple cam without using Skype?
I don’t care about the video quality, it’s just a normal streaming... the important thing is not having that audio delay problems :(
 
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