SpectraLayers Pro 7 standalone software editor: "Open Error: no sample rate or channels available" | ARA 2 support works fine though

Error Message:
error #0:Open Error: no sample rate or channels available (device sample rate: 48000 input device channels: 0 output device channels: 0)

What I Tried:

  • I started with a reboot of my laptop. My computer did recognize my UAD Apollo Twin Mkii which is connected via USB-C. Then, I used Studio One(DAW) to test SLP7 via ARA 2 support, and I was able to make edits to files and get audio playback.

  • Then I checked system sounds to ensure all devices were enabled. (I read an SLP3 or 4 thread that said this was a hiccup in those versions.)

  • I started the SLP7 standalone editor, opened an SLP7 project that I started last Saturday, and received error #0.

  • I created a new project and imported different audio files, but SLP7 threw the same error.

  • I tried manually switching the device back to WASAPI then to ASIO, and that did not work.

  • Next, I uninstalled and reinstalled SLP7 to see if that would fix the error but to no avail.

  • Finally, I went to Preferences → Device → “Reset All”. That switched it back to WASAPI, and this time when I switched it to ASIO it worked. (I was writing this as a help request, but it just turned into a bug report with that new development.)

Thanks for your help. I love the product! See log files for system specs.
~ Jayden

Log File Output:

12:49:43.372 1770 INFO  C:\Program Files\Steinberg\SpectraLayers 7\Win64\SpectraLayers.exe 
12:49:43.372 1770 INFO  auto-detected folder: C:\Program Files\Steinberg\SpectraLayers 7\Win64\
12:49:43.411 1770 INFO  early init done
12:49:43.417 1770 INFO  creating app...
12:49:43.427 1770 INFO  loading properties...
12:49:43.502 1770 INFO  session SpectraLayers 2021.02.19-12.49.43.370 started - slp7srv
12:49:43.502 1770 INFO  SpectraLayers Pro 7.0.21 Build 250 (x64 - Qt 5.15.1 - qtnamespace: SpectraLayers - qtlibinfix: SL - dynamic opengl - MSVC 1916)
12:49:44.204 1770 INFO  OS: Windows 10 Version 1909 (Kernel: 10.0.18363) (en_US)
12:49:44.204 1770 INFO  CPU: 8 threads (AVX2)
12:49:44.204 1770 INFO  RAM: 8 GB
12:49:44.205 1770 INFO  HDD: 476 GB (26 GB free)
12:49:44.205 1770 INFO  SCR0: 1536x864x32@60Hz (device pixel ratio: 2.5) (primary)
12:49:44.256 1770 INFO  creating window...
12:49:44.274 1770 INFO  loading plugins...
12:49:45.115 1770 INFO  30 plugins loaded
12:49:45.115 1770 INFO  initializing UI...
12:49:45.225 1770 INFO  layout and graphic objects initialized
12:49:45.272 1770 INFO  setting shortcuts and properties
12:49:45.726 1770 INFO  UI initialized
12:49:45.730 1770 INFO  Ready
12:49:45.743 1770 INFO  Show
12:49:45.743 1770 INFO  dll directory set to: C:\Program Files\Steinberg\SpectraLayers 7\Win64\
12:49:45.960 3bfc INFO  checking ASIO...
12:49:45.961 3bfc INFO  scanning 4 devices...
12:49:45.966 3bfc WARNING   RtApiAsio::getDeviceInfo: error (Hardware input or output is not present or available.) initializing driver (AudioBox ASIO Driver).
12:49:45.967 3bfc INFO   AudioBox ASIO Driver (0/0 channels, 0 Hz)
12:49:45.970 3bfc WARNING   RtApiAsio::getDeviceInfo: error (Hardware input or output is not present or available.) initializing driver (ioStation ASIO Driver).
12:49:45.970 3bfc INFO   ioStation ASIO Driver (0/0 channels, 0 Hz)
12:49:45.972 3bfc WARNING   RtApiAsio::getDeviceInfo: unable to load driver (Studio USB ASIO).
12:49:45.972 3bfc INFO   Studio USB ASIO (0/0 channels, 0 Hz)
12:49:45.984 3bfc INFO   Universal Audio Thunderbolt (8/10 channels, 48000 Hz)
12:49:45.985 1770 INFO  I/O: ASIO (Universal Audio Thunderbolt/Universal Audio Thunderbolt)
12:49:50.918 1770 INFO  opening C:/Users/jayde/Desktop/New folder/Contract Projects/2021/FIRE/SpectraLayersEdits/alto_FIRE_burns_riley.slp...
12:49:52.386 1770 INFO  Read alto_FIRE_burns_riley.slp SamplingFormat(Real, 48000Hz, Audio, 1 channel(s), mapping: 100) 86  layer(s))
12:49:52.400 3bfc WARNING  Open Error: no sample rate or channels available (device sample rate: 48000 input device channels: 0 output device channels: 0)
12:49:52.487 1770 INFO  GPU:  Google Inc.  /  ANGLE (NVIDIA GeForce GTX 960M Direct3D11 vs_5_0 ps_5_0)
12:49:52.487 1770 INFO  OGL:  OpenGL ES 3.0 (ANGLE 2.1.0.57ea533f79a7)  /  OpenGL ES GLSL ES 3.00 (ANGLE 2.1.0.57ea533f79a7)  /  OpenGL ES  3 . 0  Core
12:49:52.602 1770 WARNING  error #0:Open Error: no sample rate or channels available (device sample rate: 48000 input device channels: 0 output device channels: 0)
13:06:29.151 1770 INFO  I/O: none
13:06:37.295 3bfc INFO  checking WASAPI...
13:06:37.309 3bfc INFO  scanning 5 devices...
13:06:37.329 3bfc INFO   Speakers (Realtek High Definition Audio) (0/2 channels, 48000 Hz)
13:06:37.345 3bfc INFO   Speakers (Universal Audio Thunderbolt WDM) (0/2 channels, 48000 Hz) (default output)
13:06:37.360 3bfc INFO   Stereo Mix (Realtek High Definition Audio) (2/0 channels, 48000 Hz)
13:06:37.375 3bfc INFO   Microphone (Realtek High Definition Audio) (2/0 channels, 44100 Hz)
13:06:37.389 3bfc INFO   Microphone (Universal Audio Thunderbolt WDM) (2/0 channels, 44100 Hz) (default input)
13:06:56.843 1770 INFO  I/O: WASAPI (Default System Input/Default System Output)
13:06:56.844 3bfc INFO  Project Samplerate: 48000Hz Device Samplerate: 48000Hz
13:07:05.690 1770 INFO  I/O: none
13:07:12.173 1770 INFO  I/O: ASIO (Universal Audio Thunderbolt/Universal Audio Thunderbolt)
13:07:12.173 3bfc INFO  Project Samplerate: 48000Hz Device Samplerate: 48000Hz
13:07:12.209 3bfc WARNING  RtApiAsio::getDeviceInfo: error (Hardware input or output is not present or available.) initializing driver (AudioBox ASIO Driver). RtApiAsio::getDeviceInfo: error (Hardware input or output is not present or available.) initializing driver (ioStation ASIO Driver). RtApiAsio::getDeviceInfo: unable to load driver (Studio USB ASIO).
13:07:18.557 1770 INFO  session ended

Thanks for reporting and for the tip !

Mhmm, of course.