sinc 0 produces silence #615

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opened 2025-09-14 17:47:39 +00:00 by martinwguy · 0 comments

martinwguy commented

2025-09-14 17:47:39 +00:00

(Migrated from codeberg.org)

sinc 0 produces silence

Description

sox -n foo.wav synth 1 sine 20-20k sinc 0 should be a high-pass filter from DC upwards
but instead it produces silence.

Analysis

sinc 0.0001 outputs the wave (almost!) the same as it came in
but sinc 0 is silent, the same as sinc -0 which should be.

# sinc 0 produces silence ## Description `sox -n foo.wav synth 1 sine 20-20k sinc 0` should be a high-pass filter from DC upwards but instead it produces silence. ## Analysis `sinc 0.0001` outputs the wave (almost!) the same as it came in but `sinc 0` is silent, the same as `sinc -0` which should be.