rendering envelopes to audio ( dc sample ) , see the shortcomings

It is possible to render the envelopes to audio and see exactly what they do and where to fail .

You create a dc sample( positive energy only ) and make sure that in the song settings the track headroom is set to 0 db .

Basic amplitude modulation really .

In all cases renoise ads a 2ms small section to the attack stage ( linear interpolation ) ,

See xrns and render to selection ( there are different presets to the envelope ) .

Fast attack ( 20< ms ) to full range (0 db ) is problematic .