Introduced a brand new spectrum view based on SceneKit, with a scene
created by @kddlb and then altered by me to add the peak spheres. This
new scene should be lighter on display resources, even though it's fully
3D instead of a vector 2D scene done in Cocoa drawing primitives.
Co-authored-by: Kevin Lopez Brante <kevin@kddlb.cl>
Signed-off-by: Christopher Snowhill <kode54@gmail.com>
The new spectrum mode is linear frequency. Both modes also now have a
lower range of 10Hz, where possible.
Signed-off-by: Christopher Snowhill <kode54@gmail.com>
Reduce the virtual resolution to match the actual resolution, and set
the analyzere frequency to Nyquist of the audio input, as it seems to
behave as if the entire range of the input FFT bands are up to the
specified frequency, rather than half of it. Otherwise, we lose half of
the frequency range provided by the input data.
Signed-off-by: Christopher Snowhill <kode54@gmail.com>
Improvement includes greatly reducing the CPU usage by not using an
NSImage based painting system.
Signed-off-by: Christopher Snowhill <kode54@gmail.com>
Borrowing some DFT code from deadbeef, this implements a simple spectrum
visualization into the main toolbar of the app.
Signed-off-by: Christopher Snowhill <kode54@gmail.com>
Christopher Snowhill