Release v0.2.0 - Threadripper edition · skjelten/emusc

What's Changed

The overall audio quality have been significantly improved since v0.1.0:

Added cubic interpolation for proper resampling (thanks to @mmontag)
Fixed looping of partials with ping-pong loop mode to avoid popping noise (thanks to @mmontag)
Added full support for pitch envelopes
Added initial support for filter envelopes (needs more work)

Additionally, some smaller improvements & bug fixes where done:

Added support for debug messages to stdout / stderr on Windows when started from a console
Added support for directories with non-ASCII characters on Windows (already supported on Linux and macOS)
Added scripts for creating self contained app bundle and dmg-installer on macOS
Fixed some bugs related to setting BufferTime, PeriodTime and SampleRate in Audio settings
Improved MIDI device naming on macOS (thanks to @mmontag)
Fixed bug preventing proper MIDI decoding when several MIDI messages appeared in the same packet on macOS (thanks to @mmontag)
Some other minor fixes

Full Changelog: v0.1.0...v0.2.0

The biggest regression is the increased CPU requirement for running EmuSC, especially when playing many simultaneous notes. A modern desktop CPU is required to run all MIDI files properly.
Instrument Crystal (capital instrument 99) has clipping issues due to erroneous filter (TVF) values.

If you play many instruments with much chorus and / or reverb effects you will get clipping (crackling noise). This happens because the output of reverb and chorus effects are added on top of the original audio signal without any audio compression. A workaround if you experience this is to lower the master volume in the Synth Settings dialog (Master Settings). Note that the volume knob in the main GUI can be set to 100% as it wont impact this issue.
The SC55mkII ROM files seems to trigger a memory bug in certain situations causing EmuSC to use wrong sample data for certain instruments. A workaround is to use ROM files from the original SC55.
QT Multimedia audio output is not in a working state and should not be used.
EmuSC has been reported to change pitch in certain situations (see #50)
Very high CPU load

The windows version requires a MIDI device to exist, please refer to the README file for more information.
There seems to be some timing issues on Windows, but not always noticeable.

Selecting MIDI devices in the Preferences dialog does not always work as intended. Please try to stop and start EmuSC (press space twice) to see if that helps if you encounter this problem.