NOTE: This firmware CAN NOT be used for upgrades of the
SpeechMike 3200 and SpeechMike Premium LFH35xx/LFH36xx - second hardware revision
Release notes
V3.73 technical release 2021-07-07
Minor changes to improve the device manufacturing process
V3.72 technical release 2021-03-25
The microphone motion control now works correctly. Depending on the selected
configuration the microphone input level can now either be reduced or the
microphone can be muted when the device is placed on the desk. If the microphone
motion control is disabled the microphone input level will not change at all.
In Browser mode the Record LED now lights up correctly during recording
Improved VmWare compatibility: Exchanged the order of the
keyboard and the volume control interface in the USB descriptor to reflect the
correct interface identification indexes.
This fixes a device recognition problem that a few customers had when using the
SpeechMike in a virtual environment with VmWare.
V3.67 technical release 2020-07-15
Improved Windows 10 compatibility: With the latest
Windows 10 release, Microsoft has changed the USB audio interface. Due to that
Windows 10 did no longer accept the reported default microphone level of the
device during the first connection and the microphone level was set to zero (0).
To overcome this issue we have adapted the firmware in order to guarantee that
the correct microphone lecel is now reported to the USB host.
More reliable firmware upgrade process: We have learned that
approx. 50% of all firmware upgrades were not initiated, because the device
denied to upgrade the firmware for safety reasons. After re-evaluating all
safety aspects, we were able to make the firmware upgrade process more reliable
in that the device also allows a firmware upgrade in playback mode.
V3.66 technical release 2019-11-08
Fixed issue in ‘Browser’ mode for SpeechMike Premium Touch devices (LFH3700,
LFH3710, LFH3720, LFH3800, LFH3810). Button changes made by user are properly
saved on the device now.
V3.65 technical release 2019-08-13
Fixed a problem, where enabling the ‘No read’ message in the barcode scanner engine could result in a non-functional scanner (SMP3800, SMP3810)
Implemented a new HID-Command for switching between SM2 <-> SM3/SMP mode
V3.61 technical release 2019-04-25
Improved robustness of FW-upgrade function when FW upgrade is restarted during a running FW upgrade
V3.52 technical release 2018-09-06
Fixed a problem, where switching the device into MAC modus for old OS versions did not change the USB-ID. Fixed audio problems on MAC devices introduced in 3.50.
V3.50 technical release 2018-08-29
Introduction of additional custom keyboard modes:
Custom 1 mode: preconfigured for Windows speech recognition
Custom 2 mode: preconfigured for Dragon on Mac
Custom 3 mode: preconfigured for Dragon on Windows
Introduction of a new browser mode, which will cause an USB disconnect/connect event when selected, due to a different USB-id
Implementation of a Speechmike 2 compatibility mode, which will cause an USB disconnect/connect event when selected, due to a different USB-id