Audio doesn't work

[DCRalph]

I dont know whats happning but it isnt working. I am running bigsur and followed https://ledfx.readthedocs.io/en/master/directing_audio.html and still dident work

Settings:

{
  "audioInputs": {
    "isLoading": false,
    "options": [
      {
        "index": "1",
        "value": "NDI Audio"
      },
      {
        "index": "2",
        "value": "BlackHole 2ch"
      },
      {
        "index": "3",
        "value": "MacBook Pro Microphone"
      },
      {
        "index": "5",
        "value": "Soundflower (2ch)"
      },
      {
        "index": "6",
        "value": "Soundflower (64ch)"
      }
    ],
    "isSaving": false,
    "value": "MacBook Pro Microphone",
    "error": ""
  },
  "isLoading": false,
  "devMode": false,
  "port": 8888,
  "host": "0.0.0.0",
  "devices": [
    {
      "config": {
        "center_offset": 0,
        "channel_count": 360,
        "channel_offset": 0,
        "force_refresh": false,
        "icon_name": "SettingsInputComponent",
        "ip_address": "192.168.2.49",
        "max_brightness": 1,
        "name": "strip",
        "pixel_count": 120,
        "preview_only": false,
        "refresh_rate": 60,
        "type": "e131",
        "universe": 1,
        "universe_end": 1,
        "universe_size": 510
      },
      "id": "strip",
      "type": "e131",
      "effect": {
        "config": {
          "active": true,
          "config": {
            "active": true,
            "background_color": "black",
            "blur": 3,
            "brightness": 1,
            "flip": false,
            "gradient_name": "Rainbow",
            "gradient_repeat": 1,
            "gradient_roll": 0,
            "mirror": false
          },
          "isProcessing": false,
          "name": "Wavelength",
          "type": "wavelength(Reactive)",
          "gradient_name": "Rainbow",
          "background_color": "black",
          "mirror": false,
          "gradient_repeat": 1,
          "brightness": 1,
          "blur": 3,
          "gradient_roll": 0,
          "flip": false
        },
        "name": "Wavelength",
        "type": "wavelength(Reactive)",
        "active": true
      },
      "key": "strip",
      "name": "strip"
    }
  ],
  "error": "",
  "version": "0.10.4"
}

userAgent:

Mozilla/5.0 (Macintosh- Intel Mac OS X 11_2_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.90 Safari/537.36

Logs:

[
  "Websocket subscribing to event device_update with filter {'device_id': 'strip'}",
  "Effect Wavelength config updated to {'blur': 3.0, 'brightness': 1.0, 'flip': False, 'gradient_name': 'Rainbow', 'gradient_roll': 0, 'mirror': False, 'background_color': 'black', 'gradient_repeat': 1}.",
  "Activating AudioReactiveEffect.",
  "Effect Wavelength activated.",
  "Saving configuration file to /Users/williamgiles/.ledfx",
  "Deactivating AudioReactiveEffect.",
  "Effect Wavelength deactivated.",
  "Connection closed by client.",
  "Stopping sender",
  "Closed connection",
  "Audio source closed.",
  "Audio Input Devices:",
  "  [1] NDI Audio",
  "  [2] BlackHole 2ch",
  "  [3] MacBook Pro Microphone",
  "  [5] Soundflower (2ch)",
  "  [6] Soundflower (64ch)",
  "Unable to open Audio Device - please retry.",
  "Audio source opened."
]

[shauneccles]

This feels like a portaudio problem on big sur - you might give brew a crack.

Details

I know @THATDONFC uses OSX, he might be able to shed some more light.

Good bug report, thank you 👍

[THATDONFC]

@DCRalph Did you follow these instructions exactly?

It's been a while since I've used blackhole, but I think you need to set blackhole as your output (and possibly input) in sound settings for LedFx to work.

[DCRalph]

Yes and set it as an input so that it was selectable in the input dropdown.

[THATDONFC]

@DCRalph Can you send a screenshot of your MIDI Setup window?

Have you seen this? https://github.com/ExistentialAudio/BlackHole/wiki/Multi-Output-Device#audio-and-video-wont-play-when-using-a-multioutput-device

[THATDONFC]

I can't replicate this issue. I reinstalled blackhole-2ch and followed the instructions for blackhole in the LedFx documentation.

Everything setup as shown in the images below and LedFx works exactly as it should. LedFx must be restarted if any changes are made to the system audio before they will take effect.

[DCRalph]

What Mac OS are you running

![Uploading Screen Shot 2021-03-22 at 10.51.03 AM.png…]()

[THATDONFC]

Your default output needs to be at the top of the list. Read the FAQ I linked.

[DCRalph]

I don't this that is why it is not working because it doesn't even work when I set the audio input to my built in mic. LedFX cant get any audio in. I tried putting default output at the top and still didn't work

[THATDONFC]

Please delete your config.json and reinstall LedFx.

python3 -m pip uninstall ledfx
python3 -m pip install --no-cache-dir ledfx==0.10.4

[Dnncha]

I'm running into this one too, tried those commands from @THATDONFC but no luck. Signal appears to be running through Blackhole, but not making it to LedFx from some reason.

Has it got anything to do with this address in use error, or is that handled?

[THATDONFC]

Do you have portaudio installed? brew install portaudio

[Dnncha]

Yeah I had that one done.

[DCRalph]

Sorry for the inactivity. I have just tried the uninstall and reinstall commands @THATDONFC said early and still dosent work.

[THATDONFC]

Can you both test BlackHole with another program that accepts selectable input like Discord? Open Discord, open the User Settings and select Voice & Video, set your input device to BlackHole 2ch in discord and System Settings. Set your output to ONLY BlackHole 2ch in System Settings. Play some music and click Let's Check in Discord.

I just noticed that Discord only picks up the sound when BlackHole 2ch is selected. If I select the Multi-Out device, Discord doesn't get any sound. This might be a bug in BlackHole or a limitation of BlackHole 2ch. Can you guys also try BlackHole 16ch?

[krzkowalczyk]

I have the same issue on macOS Catalina 10.15.6. I don't think this is an issue with BlackHole, as ledfx doesn't pick the buildin mic audio input as well.

[tihoangyeudau]

Please use it https://discord.com/channels/469985374052286474/775680769066401813/825230281371942912

[shauneccles]

I think this is a portaudio issue to be honest with you; if the built in microphone is working and blackhole is working for other devices, its' about the only thing I can think of.

Portaudio have an RC out of their next version, I'm hopeful that it will help.

[krzkowalczyk]

I think this is a portaudio issue to be honest with you; if the built in microphone is working and blackhole is working for other devices, its' about the only thing I can think of.

Portaudio have an RC out of their next version, I'm hopeful that it will help.

But at least for me it was not working even on build in microphone.
Therefore I've fixed it and now it works. As I suspected the problem was with permissions to access the microphone (as apple is very restrictive with that). In my case as I was launching the ledfx using the iterm terminal I was necessary to give iterm permissions to access the microphone.

Now it works with microphone and blackhole !

[THATDONFC]

But at least for me it was not working even on build in microphone.
Therefore I've fixed it and now it works. As I suspected the problem was with permissions to access the microphone (as apple is very restrictive with that). In my case as I was launching the ledfx using the iterm terminal I was necessary to give iterm permissions to access the microphone.

Now it works with microphone and blackhole !

I don't know why this didn't come to mind for me. Probably because it's been so long since I've needed to grant any permissions. That would 100% prevent LedFx from accessing any devices through the terminal and/or browser.

@DCRalph @Dnncha Please check your permissions as stated here

[shauneccles]

I'm going to close this as we've resolved the underlying cause.

I'll add this to the Docs.

[DCRalph]

I dont have terminal in microphone and even downloaded iterm2 and still wasn't there