Stream What You Hear only streams what is in the queue

I have installed Stream What You Hear but it only streams what is in the Volumio queue. Of course, I want it to stream whatever is playing on my computer.

I realize this could be a problem with Stream What You Hear as much as Volumio, but would appreciate any advice.

Stream What You Here v1.5
Windows 10

Volumio v2.779
Raspberry PI

  • OS info

    • Version of Volumio: 2.779
    • Hostname: volumio
    • Kernel: 4.19.86-v7+
    • Governor: performance
    • Uptime: 0 days, 1 Hrs, 37 Minutes, 29 Seconds
  • Audio info

    • Hw audio configured: Revolution
    • Mixer type: Hardware
    • Number of channels: 2
    • Supported sample rate: 44100 48000 88200 96000 176400 192000
  • Board info

    • Manufacturer:
    • Model: BCM2835
    • Version: a02100
    • Firmware Version: Nov 29 2019 18:46:15 - 7d5bdbd77968098c981dadefae06aaec79354c69
  • CPU info

    • Brand: Processor rev 4 (v7l)
    • Speed: 1.20Mhz
    • Number of cores: 4
    • Physical cores: 4
    • Average load: 0%
    • Temperature: 53°C
  • Memory info

    • Memory: 992960 Ko
    • Free: 399632 Ko
    • Used: 593328 Ko
  • Storage info

    • INTERNAL storage - Size: 12521Mo Used: 16Mo Available: 11847Mo (95%)