M1 Mac mini - sound issues

revddave

New Member
Hello!
We've just bought an M1 Mac mini for our church live-streaming, so that I don't have to use my personal MacBook to run it. We have also just bought an SQ5 sound desk.

When I connect the SQ5 to my laptop (which is intel) via USB, everything works. The USB sends sound out from our presentation software to the desk and the mix from the desk comes back into OBS and everything is happy.

When it goes in to the M1 Mac, OBS can't see the sound. I have Loopback installed and that can pick up the sound coming in just fine. OBS won't see the sound through a loopback virtual thingy either. If I play a track on Youtube and pick that up in Loopback, OBS can see that, just not the sound from my desk.

This is beyond frustrating! Any clues, obvious things I've missed etc. would be greatly appreciated.

Log file is here
Code:
OBS 27.0.1 (mac) log file uploaded at 2021-08-05, 20:33:21

20:30:59.060: CPU Name: Apple M1
20:30:59.061: CPU Speed: 2400MHz
20:30:59.061: Physical Cores: 8, Logical Cores: 8
20:30:59.061: Physical Memory: 16384MB Total
20:30:59.061: OS Name: Mac OS X
20:30:59.061: OS Version: Version 11.4 (Build 20F71)
20:30:59.061: Kernel Version: 20.5.0
20:30:59.067: hotkeys-cocoa: Using layout 'com.apple.keylayout.British'
20:30:59.067: Current Date/Time: 2021-08-05, 20:30:59
20:30:59.067: Browser Hardware Acceleration: true
20:30:59.067: Portable mode: false
20:30:59.151: OBS 27.0.1 (mac)
20:30:59.151: ---------------------------------
20:30:59.152: ---------------------------------
20:30:59.152: audio settings reset:
20:30:59.152:     samples per sec: 48000
20:30:59.152:     speakers:        2
20:30:59.154: ---------------------------------
20:30:59.154: Initializing OpenGL...
20:30:59.178: Loading up OpenGL on adapter Apple Apple M1
20:30:59.178: OpenGL loaded successfully, version 4.1 Metal - 71.6.4, shading language 4.10
20:30:59.264: ---------------------------------
20:30:59.264: video settings reset:
20:30:59.264:     base resolution:   1280x720
20:30:59.264:     output resolution: 1280x720
20:30:59.264:     downscale filter:  Bicubic
20:30:59.264:     fps:               30/1
20:30:59.264:     format:            NV12
20:30:59.264:     YUV mode:          709/Partial
20:30:59.264: NV12 texture support not available
20:30:59.264: Audio monitoring device:
20:30:59.264:     name: Mac mini Speakers
20:30:59.264:     id: BuiltInSpeakerDevice
20:30:59.264: ---------------------------------
20:30:59.266: Failed to load 'en-GB' text for module: 'coreaudio-encoder.so'
20:30:59.267: Failed to load 'en-US' text for module: 'decklink-captions.so'
20:30:59.268: Failed to load 'en-US' text for module: 'decklink-ouput-ui.so'
20:30:59.276: os_dlopen(libpython3.9.dylib->libpython3.9.dylib): dlopen(libpython3.9.dylib, 257): image not found
20:30:59.276:
20:30:59.276: [Python] Could not load library: libpython3.9.dylib
20:30:59.442: Failed to load 'en-GB' text for module: 'mac-capture.so'
20:30:59.444: A DeckLink iterator could not be created.  The DeckLink drivers may not be installed
20:30:59.444: No blackmagic support
20:30:59.447: [mac-virtualcam] version=1.3.0
20:30:59.449: Failed to load 'en-GB' text for module: 'mac-vth264.so'
20:30:59.523: [VideoToolbox encoder]: Adding VideoToolbox H264 encoders
20:30:59.526: [obs-browser]: Version 2.14.3
20:30:59.526: [obs-browser]: CEF Version 85.0.0-HEAD.2273+g93b66a0+chromium-85.0.4183.121
20:30:59.549: Failed to load 'en-GB' text for module: 'obs-x264.so'
20:30:59.549: Failed to load 'en-GB' text for module: 'rtmp-services.so'
20:30:59.552: 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, 257): image not found
20:30:59.552:
20:30:59.552: Couldn't find VLC installation, VLC video source disabled
20:30:59.552: ---------------------------------
20:30:59.552:   Loaded Modules:
20:30:59.552:     vlc-video.so
20:30:59.552:     text-freetype2.so
20:30:59.552:     rtmp-services.so
20:30:59.552:     obs-x264.so
20:30:59.552:     obs-vst.so
20:30:59.552:     obs-transitions.so
20:30:59.552:     obs-outputs.so
20:30:59.552:     obs-filters.so
20:30:59.552:     obs-ffmpeg.so
20:30:59.552:     obs-browser.so
20:30:59.552:     mac-vth264.so
20:30:59.552:     mac-virtualcam.so
20:30:59.552:     mac-syphon.so
20:30:59.552:     mac-decklink.so
20:30:59.552:     mac-capture.so
20:30:59.552:     mac-avcapture.so
20:30:59.552:     image-source.so
20:30:59.553:     frontend-tools.so
20:30:59.553:     decklink-ouput-ui.so
20:30:59.553:     decklink-captions.so
20:30:59.553:     coreaudio-encoder.so
20:30:59.553: ---------------------------------
20:30:59.553: ==== Startup complete ===============================================
20:30:59.567: All scene data cleared
20:30:59.567: ------------------------------------------------
20:30:59.632: Mevo: Could not initialize device with unique ID 'vid_mevo-245LG'
20:30:59.662: coreaudio: device 'SQ - Audio' initialized
20:30:59.663: Switched to scene 'Scene'
20:30:59.663: ------------------------------------------------
20:30:59.663: Loaded scenes:
20:30:59.663: - scene 'Scene':
20:30:59.663:     - source: 'Mevo' (av_capture_input)
20:30:59.663:     - source: 'Sound Desk' (coreaudio_input_capture)
20:30:59.663:         - filter: 'Gain' (gain_filter)
20:30:59.663:         - filter: 'Compressor' (compressor_filter)
20:30:59.663: ------------------------------------------------
20:30:59.693: adding 42 milliseconds of audio buffering, total audio buffering is now 42 milliseconds (source: Sound Desk)
20:30:59.693:
20:31:38.069: Mevo: Device with unique ID 'vid_mevo-245LG' connected, resuming capture
20:31:38.070: Mevo: Selected device 'Mevo-245LG (Wireless)'
20:31:38.076: Mevo: Using preset 1920x1080
20:32:41.169: [VideoToolbox streaming_h264: 'h264']: session created with hardware encoding
20:32:41.192: [VideoToolbox streaming_h264: 'h264']: settings:
20:32:41.192:     vt_encoder_id          com.apple.videotoolbox.videoencoder.ave.avc
20:32:41.192:     bitrate:               2500 (kbps)
20:32:41.192:     fps_num:               30
20:32:41.192:     fps_den:               1
20:32:41.192:     width:                 1280
20:32:41.192:     height:                720
20:32:41.192:     keyint:                2 (s)
20:32:41.192:     limit_bitrate:         off
20:32:41.192:     rc_max_bitrate:        2500 (kbps)
20:32:41.192:     rc_max_bitrate_window: 1.500000 (s)
20:32:41.192:     hw_enc:                on
20:32:41.192:     profile:               default
20:32:41.192:
20:32:41.195: [CoreAudio AAC: 'adv_stream_aac']: settings:
20:32:41.195:     mode:          AAC
20:32:41.195:     bitrate:       160
20:32:41.195:     sample rate:   48000
20:32:41.195:     cbr:           on
20:32:41.195:     output buffer: 1536
20:32:41.196: [rtmp stream: 'adv_stream'] Connecting to RTMP URL rtmps://a.rtmps.youtube.com:443/live2...
20:32:41.788: [rtmp stream: 'adv_stream'] Connection to rtmps://a.rtmps.youtube.com:443/live2 successful
20:32:41.797: ==== Streaming Start ===============================================
20:33:13.598: [rtmp stream: 'adv_stream'] User stopped the stream
20:33:13.598: Output 'adv_stream': stopping
20:33:13.598: Output 'adv_stream': Total frames output: 950
20:33:13.598: Output 'adv_stream': Total drawn frames: 972
20:33:13.602: ==== Streaming Stop ================================================
 
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