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Vg7 On Vm With Hmp Driver: Sound Card Needed?

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#1 iTime 09 June 2017 - 06:21 AM



We have been installing VG7 with HMP on VM (Esxi) environment for our customers, advertising that the hosing machine does need to have a sound card installed.

But is this still true?


I noticed you mentioned it is OK without a sound card for the thread below:



Would you be able to clarify?

one of our customers-to-be asked for requirements.


Thanks in advance.





#2 SupportTeam 09 June 2017 - 07:01 AM

VoiceGuide v7 does not require a sound card to be installed.


Dialogic HMP also does not require a sound card to be installed.

#3 SupportTeam 09 June 2017 - 08:08 AM

Some TTS engines may require that sound drivers are installed, so if using TTS engine on this system you may want to check the used TTS engine's requirements.

#4 iTime 09 June 2017 - 08:58 AM

We always use Microsoft Text-to-speech.

So, what is the best way to check it is available on VM without a sound card?

#5 SupportTeam 09 June 2017 - 09:20 AM

Best way is to do a test deployment on same version of Windows in same VM environment.

#6 SupportTeam 16 June 2017 - 05:04 PM

We always use Microsoft Text-to-speech.


Current versions of Microsoft TTS do not require that a sound card/hardware be present.


Please see screenshot from a test we just did on Windows 2016 running on VM under ESXi 6.5.0


"Microsoft David Desktop" TTS Voice was used by VoiceGuide and it successfully generated the sound file that was then played out.


Screenshot shows that no sound hardware is present on this VM, and that the Audio Service is not running.


Please let us know if you would like us to expand on anything,



  • esxi_2016_tts.png

#7 evalenzuela 17 June 2017 - 02:38 AM

The current potential customer is using HYPER-V not VMWare. Can you please run a test with a virtual machine on Microsoft hyper-v?

This would ease their concerns.



#8 SupportTeam 17 June 2017 - 09:14 AM

Dialogic HMP only officially supports VmWare ESXi as a VM platform.


There are reports from users that they are able to run Dialogic HMP on Hyper-V, but we do not officially support running VoiceGuide on Hyper-V, as it is not an VM platform officially supported by Dialogic.


The test carried out that showed that current version of Microsoft TTS does not require that a sound card/hardware be present in order to by successfully used with VoiceGuide.


Running on a different VM platform (or on the physical machine directly) should not result in the TTS engine all of a sudden requiring it, when it works without it.