This will have playback sound but the microphone will not work, and viewing recording devices in the VDI causes the WTWare Client to crash. This also has USB debug on. 
I cannot get a screenshot of viewing recording devices on this as it causes the crash on the thin client.

Client Config
httpd = 10.200.120.4
clienthostname = INF-PI1
timezone = Central Standard Time
loadbalanceinfo = tsv://VMResource.1.DedicatedVDI
server = rdp:inf-rds.infsquared.local
graphic = abcdefg
onerror = 60
sound=on, hw:0:1
microphone=on
usb = 0458:708c, debug


WTware 5.6.12
WTware 5.6.12/RPi supervisor.

[        KERNEL] [    3.402632] usb 1-1: New USB device found, idVendor=0424, idProduct=9514
[        KERNEL] [    3.402644] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[        KERNEL] [    3.403377] hub 1-1:1.0: USB hub found
[        KERNEL] [    3.403491] hub 1-1:1.0: 5 ports detected
[        KERNEL] [    3.722386] usb 1-1.1: new high-speed USB device number 3 using dwc_otg
[        KERNEL] [    3.852615] usb 1-1.1: New USB device found, idVendor=0424, idProduct=ec00
[        KERNEL] [    3.852625] usb 1-1.1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[        KERNEL] [    3.952389] usb 1-1.2: new high-speed USB device number 4 using dwc_otg
[        KERNEL] [    4.317989] usb 1-1.2: New USB device found, idVendor=0458, idProduct=708c
[        KERNEL] [    4.318000] usb 1-1.2: New USB device strings: Mfr=3, Product=1, SerialNumber=2
[        KERNEL] [    4.318007] usb 1-1.2: Product: USB_Camera
[        KERNEL] [    4.318014] usb 1-1.2: Manufacturer: KYE Systems Corp.
[        KERNEL] [    4.318021] usb 1-1.2: SerialNumber: 200901010001
[        KERNEL] [    4.422380] usb 1-1.4: new full-speed USB device number 5 using dwc_otg
[        KERNEL] [    4.557278] usb 1-1.4: New USB device found, idVendor=046d, idProduct=c534
[        KERNEL] [    4.557288] usb 1-1.4: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[        KERNEL] [    4.557296] usb 1-1.4: Product: USB Receiver
[        KERNEL] [    4.557303] usb 1-1.4: Manufacturer: Logitech
[        KERNEL] [    4.563117] input: Logitech USB Receiver as /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.4/1-1.4:1.0/0003:046D:C534.0001/input/input0
[        KERNEL] [    4.633773] hid-generic 0003:046D:C534.0001: input,hidraw0: USB HID v1.11 Keyboard [Logitech USB Receiver] on usb-3f980000.usb-1.4/input0
[        KERNEL] [    4.645509] input: Logitech USB Receiver as /devices/platform/soc/3f980000.usb/usb1/1-1/1-1.4/1-1.4:1.1/0003:046D:C534.0002/input/input1
[        KERNEL] [    4.723106] hid-generic 0003:046D:C534.0002: input,hiddev0,hidraw1: USB HID v1.11 Mouse [Logitech USB Receiver] on usb-3f980000.usb-1.4/input1
[        initrd] [    4.903795] Success: media /dev/mmcblk0p1 mounted to /bootmedia.

[        KERNEL] [   22.341046] usbcore: registered new interface driver snd-usb-audio
/--- FILE "/proc/asound/devices" -----------------------
|   0: [ 0]   : control
|  16: [ 0- 0]: digital audio playback
|  17: [ 0- 1]: digital audio playback
|  32: [ 1]   : control
|  33:        : timer
|  56: [ 1- 0]: digital audio capture
\----------------------------------------------------
[          pfac] [   22.342505] Run /sbin/rdpsnd sndvol 100 100 50.
[            gm] [   22.342625] /dev/snd/pcmC1D0c character device.
[          pfac] [   22.342772] Ok, PID 684.
[            gm] [   22.342839] /dev/snd/controlC1 character device.
[          pfac] [   22.342974] Run /sbin/rdpsnd 1 0 100 0 1.
[            gm] [   22.343038] /dev/snd/pcmC0D1p character device.
[          pfac] [   22.343116] Ok, PID 685.
[            gm] [   22.343162] /dev/snd/pcmC0D0p character device.
[          pfac] [   22.343269] Run /sbin/rdpaudin 0 100 0 1.
[            gm] [   22.343330] /dev/snd/controlC0 character device.
[          pfac] [   22.343443] Ok, PID 686.
[            gm] [   22.343493] /dev/snd/timer character device.
[          pfac] [   22.343568] Run /sbin/rdpdr[usb] 0458:708c debug.
[            gm] [   22.343615] Preconfigure ALSA.
[          pfac] [   22.343687] Ok, PID 687.
[            gm] [   22.343729] Run '/sbin/rdpsnd sndvol 100 100 50', log '', env '', pid ''.
[            gm] [   22.343804] Run sound daemon.
[            gm] [   22.343877] Run '/sbin/rdpsnd 1 0 100 0 1', log '', env '', pid ''.
[            gm] [   22.343958] Run microphone daemon.
[            gm] [   22.344037] Run '/sbin/rdpaudin 0 100 0 1', log '', env '', pid ''.
[            gm] [   22.344139] Run '/sbin/rdpdr[usb] 0458:708c debug', log '/tmp/rdpdr[usb].out', env '', pid ''.
[        rdpsnd] [   22.347724] RDP Sound Redirector, WTware 5.6.12/RPi.
[        rdpsnd] [   22.356328] Card 'ALSA'/'bcm2835 ALSA'.
[        rdpsnd] [   22.356455] Mixer name: 'Broadcom Mixer'.
[rdpdr-usb 0458:708c] [   22.356500] RDP USB Redirector, WTware 5.6.12/RPi
[        rdpsnd] [   22.356591] Components: ''.
[rdpdr-usb 0458:708c] [   22.356635] [DEBUG] Open listener at /tmp/rdpdr[usb]_0458:708c. Main thread 0x76f31000.
[      rdpaudin] [   22.356681] RDP Microphone Redirector, WTware 5.6.12/RPi.
[        rdpsnd] [   22.356762] Controls: 6.
[rdpdr-usb 0458:708c] [   22.356807] [DEBUG] Init libusb.
[        rdpsnd] [   22.356886] ALSA: control 'PCM Playback Volume'.
[rdpdr-usb 0458:708c] [   22.356930] Device connected. USB Id 0458:708c, bus Id 1-1.2, BUSNUM 1, DEVNUM 4.
[        rdpsnd] [   22.357011] ALSA: control 'PCM Playback Switch'.
[rdpdr-usb 0458:708c] [   22.357054] [DEBUG] Ignore 046d:c534.
[        rdpsnd] [   22.357133] ALSA: control 'PCM Playback Route'.
[rdpdr-usb 0458:708c] [   22.357177] [DEBUG] Ignore 0424:ec00.
[        rdpsnd] [   22.357255] ALSA: control 'IEC958 Playback Default'.
[rdpdr-usb 0458:708c] [   22.357299] [DEBUG] Ignore 0424:9514.
[        rdpsnd] [   22.357379] ALSA: control 'IEC958 Playback Con Mask'.
[rdpdr-usb 0458:708c] [   22.357427] [DEBUG] Ignore 1d6b:0002.
[        rdpsnd] [   22.357534] ALSA: control 'IEC958 Playback PCM Stream'.
[        rdpsnd] [   22.357616] Inactive control IEC958 Playback PCM Stream'.
[      rdpaudin] [   22.360733] Card 'ALSA'/'bcm2835 ALSA'.
[      rdpaudin] [   22.360888] Mixer name: 'Broadcom Mixer'.
[      rdpaudin] [   22.361024] Components: ''.
[      rdpaudin] [   22.361172] Controls: 6.
[      rdpaudin] [   22.361351] ALSA: control 'PCM Playback Volume'.
[      rdpaudin] [   22.361526] ALSA: control 'PCM Playback Switch'.
[      rdpaudin] [   22.361665] ALSA: control 'PCM Playback Route'.
[      rdpaudin] [   22.361825] ALSA: control 'IEC958 Playback Default'.
[      rdpaudin] [   22.361964] ALSA: control 'IEC958 Playback Con Mask'.
[      rdpaudin] [   22.362099] ALSA: control 'IEC958 Playback PCM Stream'.
[      rdpaudin] [   22.362232] Inactive control IEC958 Playback PCM Stream'.
[        sndvol] [   22.363266] Card 'ALSA'/'bcm2835 ALSA'.
[        sndvol] [   22.363358] Mixer name: 'Broadcom Mixer'.
[        sndvol] [   22.363437] Components: ''.
[        sndvol] [   22.363537] Controls: 6.
[        sndvol] [   22.363616] ALSA: control 'PCM Playback Volume'.
[        sndvol] [   22.363697] ALSA: control 'PCM Playback Switch'.
[        sndvol] [   22.363778] ALSA: control 'PCM Playback Route'.
[        sndvol] [   22.363858] ALSA: control 'IEC958 Playback Default'.
[        sndvol] [   22.363938] ALSA: control 'IEC958 Playback Con Mask'.
[        sndvol] [   22.364017] ALSA: control 'IEC958 Playback PCM Stream'.
[        sndvol] [   22.364097] Inactive control IEC958 Playback PCM Stream'.
[        sndvol] [   22.364176] Card 'USBCamera'/'KYE Systems Corp. USB_Camera at usb-3f980000.usb-1.2, high speed'.
[        sndvol] [   22.364256] Mixer name: 'USB Mixer'.
[        sndvol] [   22.364335] Components: 'USB0458:708c'.
[        sndvol] [   22.364413] Controls: 5.
[        sndvol] [   22.364490] ALSA: control 'Capture Channel Map'.
[        sndvol] [   22.364569] ALSA: control 'Mic Capture Switch'.
[        sndvol] [   22.364648] ALSA: control 'Mic Capture Volume'.
[        sndvol] [   22.364728] ALSA: control 'Auto Gain Control'.
[        sndvol] [   22.364807] ALSA: control 'Loudness'.
[          pfac] [   22.366291] Process pid 684 terminated, status 00000000.

[            gm] [   22.421539] Free ram before fork terminal client /sbin/rdpclient (session 1): 922440 Kb.

[ rdpclient 690] [   22.431957] Redirect sound.
[ rdpclient 690] [   22.432197] Make RDP session with 10.200.100.6, port 3389.
[ rdpclient 690] [   37.228937] Server supports GFX Pipeline.
[ rdpclient 690] [   37.229095] CredSSP.
[ rdpclient 690] [   37.229178] SSL/TLS.

[rdpdr-usb 0458:708c] [   39.050164] [DEBUG] Client connected.
[rdpdr-usb 0458:708c] [   39.050365] [DEBUG] Tell Windows device is connected.
[rdpdr-usb 0458:708c] [   39.056361] [DEBUG] =======================================================
[rdpdr-usb 0458:708c] [   39.056504] [DEBUG] RIMCALL_RELEASE.
[rdpdr-usb 0458:708c] [   39.056655] [DEBUG] Detach kernel driver for interface 2.
[rdpdr-usb 0458:708c] [   39.057151] [DEBUG] Detach kernel driver for interface 3.
[rdpdr-usb 0458:708c] [   39.057231] [DEBUG] Composite device (test 2).
[rdpdr-usb 0458:708c] [   39.070400] [DEBUG] Serial: '200901010001'.
[rdpdr-usb 0458:708c] [   39.070520] [DEBUG] bus Id '1-1.2'.
[rdpdr-usb 0458:708c] [   39.070605] [DEBUG] DeviceInstanceId raw: '\1-1.20458708C20'.
[rdpdr-usb 0458:708c] [   39.070660] [DEBUG] DeviceInstanceId 'bb73b021-59f7-04de-0b04-d98f6c0aaf7f'.
[rdpdr-usb 0458:708c] [   39.070706] [DEBUG] HardwareIds 'USB\VID_0458&PID_708C&REV_0427', 'USB\VID_0458&PID_708C'.
[rdpdr-usb 0458:708c] [   39.070748] [DEBUG] CompatibilityIds 95 chars: 'USB\DevClass_00&SubClass_00&Prot_00', 'USB\DevClass_00&SubClass_00', 'USB\DevClass_00'.

[rdpdr-usb 0458:708c] [   39.210245] [DEBUG] =======================================================
[rdpdr-usb 0458:708c] [   39.210337] [DEBUG] TRANSFER_IN_REQUEST
[rdpdr-usb 0458:708c] [   39.210379] [DEBUG] Function 0x000b, RequestId 0, NoAck false, 22 bytes to receive.
[rdpdr-usb 0458:708c] [   39.210420] [DEBUG] URB_FUNCTION_GET_DESCRIPTOR_FROM_DEVICE
[rdpdr-usb 0458:708c] [   39.210461] [DEBUG] DescriptorType 3.
[rdpdr-usb 0458:708c] [   39.210501] [DEBUG] request_type 0x80, wValue 0x305, Index 5, DescriptorType 3, LanguageId 1033.
[rdpdr-usb 0458:708c] [   39.213163] [DEBUG] libusb_control_transfer return 22.
[rdpdr-usb 0458:708c] [   39.213340] 00000000:16035500530042005F00430061006D00650072006100                      .U.S.B._.C.a.m.e.r.a.
[rdpdr-usb 0458:708c] [   39.213415] [DEBUG] Send 58 bytes to rdpclient.
[rdpdr-usb 0458:708c] [   39.213458] 00000000:0000004000000000010100000000000008000000080000000000000000000000  ...@............................
[rdpdr-usb 0458:708c] [   39.213499] 00000020:1600000016035500530042005F00430061006D00650072006100              ....U.S.B._.C.a.m.e.r.a.
[rdpdr-usb 0458:708c] [   39.223011] [DEBUG] =======================================================
[rdpdr-usb 0458:708c] [   39.223164] [DEBUG] TRANSFER_IN_REQUEST
[rdpdr-usb 0458:708c] [   39.223209] [DEBUG] Function 0x000b, RequestId 0, NoAck false, 4 bytes to receive.
[rdpdr-usb 0458:708c] [   39.223251] [DEBUG] URB_FUNCTION_GET_DESCRIPTOR_FROM_DEVICE
[rdpdr-usb 0458:708c] [   39.223292] [DEBUG] DescriptorType 3.
[rdpdr-usb 0458:708c] [   39.223332] [DEBUG] request_type 0x80, wValue 0x306, Index 6, DescriptorType 3, LanguageId 1033.
[rdpdr-usb 0458:708c] [   39.224287] [DEBUG] libusb_control_transfer return 4.
[rdpdr-usb 0458:708c] [   39.224379] 00000000:16035500                                                          .U.
[rdpdr-usb 0458:708c] [   39.224431] [DEBUG] Send 40 bytes to rdpclient.
[rdpdr-usb 0458:708c] [   39.224473] 00000000:0000004000000000010100000000000008000000080000000000000000000000  ...@............................
[rdpdr-usb 0458:708c] [   39.224514] 00000020:0400000016035500                                                  .....U.
[rdpdr-usb 0458:708c] [   39.226642] [DEBUG] =======================================================
[rdpdr-usb 0458:708c] [   39.226779] [DEBUG] TRANSFER_IN_REQUEST
[rdpdr-usb 0458:708c] [   39.226832] [DEBUG] Function 0x000b, RequestId 0, NoAck false, 22 bytes to receive.
[rdpdr-usb 0458:708c] [   39.226878] [DEBUG] URB_FUNCTION_GET_DESCRIPTOR_FROM_DEVICE
[rdpdr-usb 0458:708c] [   39.226925] [DEBUG] DescriptorType 3.
[rdpdr-usb 0458:708c] [   39.226968] [DEBUG] request_type 0x80, wValue 0x306, Index 6, DescriptorType 3, LanguageId 1033.
[rdpdr-usb 0458:708c] [   39.227178] [DEBUG] libusb_control_transfer return 22.
[rdpdr-usb 0458:708c] [   39.227225] 00000000:160355005300420032002E00300020004D0049004300                      .U.S.B.2...0. .M.I.C.
[rdpdr-usb 0458:708c] [   39.227271] [DEBUG] Send 58 bytes to rdpclient.
[rdpdr-usb 0458:708c] [   39.227313] 00000000:0000004000000000010100000000000008000000080000000000000000000000  ...@............................
[rdpdr-usb 0458:708c] [   39.227365] 00000020:16000000160355005300420032002E00300020004D0049004300              ....U.S.B.2...0. .M.I.C.
[rdpdr-usb 0458:708c] [   39.234370] [DEBUG] =======================================================

[      rdpaudin] [   65.713348] ALSA: /sys/class/sound/pcmC0D1c/dev does not exist. Choose another recording device.
[      rdpaudin] [   65.713533] ALSA ERROR: no sound devices in hw:0. Correct sound= value.
[      rdpaudin] [   65.713621]    rdpaudin-main.cpp (  529): -- ERROR -- INTERNAL ERROR. Please, contact WTware tech support.
[          pfac] [   65.714227] Process pid 686 terminated, status 00000100.
[ rdpclient 695] [   65.714288] Audin daemon is dead.
[ rdpclient 695] [   65.714370]  rdpclient-audin.cpp (  266): -- ERROR -- INTERNAL ERROR. Please, contact WTware tech support.
[ rdpclient 695] [   65.714452] I'm tired.
[            gm] [   65.715067] Final message: I'm tired.
[rdpdr-usb 0458:708c] [   65.739149] [DEBUG] Link lost.
[        rdpsnd] [   65.739440] Link lost.
[          pfac] [   65.740163] Process pid 695 terminated, status 00000009.