It took me a while but I seem to have gotten an image to run TTD (v68) well on Ubuntu-MATE on a Raspberry Pi3. Below is a link to a copy of the image. It is from a 16 gb SD card so you will need a card at least that big. Be ready for it to take an hour or more to download and then another hour or two possibly to image your card.
The UbuntuMATE image closely resembles the Windows version of TTD. There are icons on the desktop for TTD and for the Tones Editor. If you are familiar with the Windows version or follow Andy's Windows set up instructions (TwoToneDetect) you shouldn't have much trouble with it. This image version automatically loads TTD at boot up so will self recover after a power failure. It also supports .amr attachments.
The image also contains Windows Remote Desktop to facilitate remoting in without monitor or keyboard.
1. Download the compressed image to your computer.
2. Extract the .img file and image your SD card using Win32 Disk Imager, Etcher (etcher.io) or your choice of imaging software.
3.Put the freshly imaged card into your Pi3.
4. Connect up an HDMI monitor, a usb sound card, an ethernet cable, usb keyboard/mouse, and then power up the pi.
5. The monitor should boot to the MATE desktop with Pulse Audio Volume Control and Two Tone Detect running. Be patient, there will be a few seconds where the monitor is completely blank. There is also a 20 second delay on the launch of TTD to allow Pulse to get loaded. Give it a minute or so and it should completely load up.
6. click on the Recording tab in Pulse Audio Volume Control and make sure that it is coming from the USB Audio device, not either of the monitors.
7. use the Edit Configuration button on the TTD window to enter your email credentials, etc.
8. use the Tones Editor icon on the desktop to launch the tones editor to put in your tone sets.
9. After making changes, use the Exit button in the TTD window to exit the program and then the desktop TTD icon to relaunch with the changes.
Good luck.
The link:
https://drive.google.com/open?id=0B9sLdBjMInCVdEpBMlZPMWxoczg
The UbuntuMATE image closely resembles the Windows version of TTD. There are icons on the desktop for TTD and for the Tones Editor. If you are familiar with the Windows version or follow Andy's Windows set up instructions (TwoToneDetect) you shouldn't have much trouble with it. This image version automatically loads TTD at boot up so will self recover after a power failure. It also supports .amr attachments.
The image also contains Windows Remote Desktop to facilitate remoting in without monitor or keyboard.
1. Download the compressed image to your computer.
2. Extract the .img file and image your SD card using Win32 Disk Imager, Etcher (etcher.io) or your choice of imaging software.
3.Put the freshly imaged card into your Pi3.
4. Connect up an HDMI monitor, a usb sound card, an ethernet cable, usb keyboard/mouse, and then power up the pi.
5. The monitor should boot to the MATE desktop with Pulse Audio Volume Control and Two Tone Detect running. Be patient, there will be a few seconds where the monitor is completely blank. There is also a 20 second delay on the launch of TTD to allow Pulse to get loaded. Give it a minute or so and it should completely load up.
6. click on the Recording tab in Pulse Audio Volume Control and make sure that it is coming from the USB Audio device, not either of the monitors.
7. use the Edit Configuration button on the TTD window to enter your email credentials, etc.
8. use the Tones Editor icon on the desktop to launch the tones editor to put in your tone sets.
9. After making changes, use the Exit button in the TTD window to exit the program and then the desktop TTD icon to relaunch with the changes.
Good luck.
The link:
https://drive.google.com/open?id=0B9sLdBjMInCVdEpBMlZPMWxoczg