The Intelligent Voice system is a batch processing system designed to process hours of audio recordings as efficiently as possible.  We also offer systems designed for real-time transcription, low latency key word spotting, IoT hub devices and embedded applications and more - for details on running these solutions on Azure please contact us.

Minimum Requirements

A basic installation of Intelligent Voice 5.0 with GPU acceleration on Azure requires a single GPU instance type with 128GB RAM and 4 CPUs.

At time of writing in June 2021, the Standard_NC16as_T4_v3 type is recommended. Other supported sizes:

• Standard_NC64as_T4_v3
• Any NCv2-series
• Any NCv3-series

Intelligent Voice 5.0 has full support for installation on Red Hat Enterprise Linux 7 and Ubuntu 20.04

The minimum storage requirement is 500GB.

Production deployment example

An example of a full production system deployment with autoscaling.

This system uses a single application server, with an Virtual Machine Scale Set deploying processing node images from a Shared image gallery.  The current state of the gearman queue is sent to Application Insights using Telegraf and scaling rules created based on the number of jobs.

This system was benchmarked with different counts of processing nodes, and average throughput of each processing node was 67 audio hours per hour.

Application server

Standard B12ms (12 vcpus, 48 GiB memory)

Azure image: Red Hat Enterprise Linux 7.8 (with latest updates applied before starting install)

OS Disk: 610GB Premium SSD LRS, partitioned as follows:

Filesystem                Size Mounted on
/dev/mapper/rootvg-rootlv 40G  /
/dev/mapper/rootvg-usrlv  28G  /usr
/dev/sda2                 494M /boot
/dev/mapper/rootvg-optlv  190G /opt
/dev/sda1                 500M /boot/efi
/dev/mapper/rootvg-homelv 6.0G /home
/dev/mapper/rootvg-varlv  150G /var
/dev/mapper/rootvg-tmplv  35G  /tmp

(tomcat8 temp files are in default location /opt/apache-tomcat-8.5.61/temp/)

Processing node images

Azure image: Red Hat Enterprise Linux 7.8 (with latest updates applied before starting install)

OS Disk: 610GB Premium SSD LRS, partitioned as follows:

Filesystem Size Mounted on
/dev/mapper/rootvg-rootlv 40G  /
/dev/mapper/rootvg-usrlv  20G  /usr
/dev/sda2                 494M /boot
/dev/mapper/rootvg-varlv  310G /var
/dev/mapper/rootvg-tmplv  25G /tmp
/dev/sda1                 500M /boot/efi
/dev/mapper/rootvg-homelv 6.0G /home
/dev/mapper/rootvg-optlv  20G  /opt