v2.0.0

FreeDV 2.0.0 has been released, containing the first official release of the RADE V1 mode previously trialled over several preview releases. Radio Autoencoder (RADE) technology is a new approach to sending speech over HF radio. It combines Machine Learning (ML) with classical DSP to send high quality speech over HF radio at SNRs as low as -2dB in a bandwidth of 1500 Hz. More information about Radio Autoencoder can be found at https://freedv.org/radio-autoencoder/.

As part of this effort, deprecated modes (700C, 800XA, 2020 and 2020B) have been removed from the application. Additionally, this contains numerous bugfixes and non-RADE specific enhancements from the last official release (1.9.9.2), as outlined below:

1. Bugfixes:
   • Fix bug preventing saving of the previously used path when playing back files. (PR #729)
   • Fix bug preventing proper time display in FreeDV Reporter on macOS. (PR #748)
   • Hamlib: Improve behavior with Icom rigs, serial port PTT. (PR #875)
   • Fix various audio dropout issues, especially on Linux. (PR #761)
   • Fix issue preventing non-ASCII text from appearing properly in FreeDV Reporter messages. (PR #812)
   • Don't adjust Msg column width when user disconnects. (PR #828)
   • Fix issue preventing suppression of the Msg tooltip for non-truncated messages. (PR #829)
   • Preserve Hamlib rig names on startup to guard against changes by Hamlib during execution. (PR #834)
   • Fix dropouts related to virtual audio cables. (PR #840)
   • Report "unk" for mode on Hamlib disconnect. (PR #851)
   • Fix deadlocks and crashes while using Play/Record buttons in Audio Options window. (PR #871)
   • Fix issue causing PTT button to remain active after pushing it. (PR #871)
   • Fix rendering issue causing random spikes in From Mic plot. (PR #871)
2. Enhancements:
   • Show green line indicating RX frequency. (PR #725)
   • Update configuration of the Voice Keyer feature based on user feedback. (PR #730, #746, #793)
   • Add monitor volume adjustment. (PR #733)
   • Avoid modifying the audio device configuration without the user explicitly doing so. (PR #735)
   • If provided by user, add config file to titlebar. (PR #738)
   • Minor adjustments to spectrum/waterfall tooltips. (PR #743)
   • Implement new logging framework. (PR #773)
   • Windows: Detect whether microphone permissions have been granted and display error if not. (PR #790)
   • Add rig control option to prevent auto-adjustment of the radio's current mode. (PR #809)
   • Update default 80 and 160m calling frequencies. (PR #831)
   • Shorten PulseAudio/pipewire app name. (PR #843)
   • Hamlib: support CAT PTT via the Data port instead of Mic (needed for some older radios). (PR #875)
   • macOS: Show /dev/tty.* devices in CAT/PTT options. (PR #883)
   • Remove pre-PTT interrogation of frequency/mode to improve TX/RX switching time. (PR #898)
3. Build system:
   • Allow overriding the version tag when building. (PR #727)
   • Update wxWidgets to 3.2.8. (PR #861)
   • Update Hamlib to 4.6.2. (PR #834)
   • Use optimal number of parallel builds during build process. (PR #842)
4. Miscellaneous:
   • Add issue template for SW bugs. (PR #759)
   • Fix typos in user manual and code. (PR #859; thanks @dforsi)
   • Removed deprecated modes: 700C, 800XA, 2020, 2020B (PR #889)

Available binary releases (click Assets to expand the section and retrieve download links):

• FreeDV-2.0.0-windows-x86_64.exe (64 bit Windows for Intel/AMD)
• FreeDV.dmg (ARM/Intel macOS, Big Sur/11.0 or later required)