Function apply_compression

perro_source/audio_stack/perro_pawdio/src/dsp.rs:262–275

(sample: f32, compression: AudioCompression)

        self.param_counter += 1;
        if self.param_counter >= PARAM_REFRESH_SAMPLES {
            self.param_counter = 0;
        }
        let params = self.params;
        let ch = self.channel_index.min(self.channels - 1);
        let mut sample = input;

        // Unity EQ is an identity passthrough; skip the two filter updates.
        if !eq_is_dry(params.eq) {
            sample = self.apply_eq(ch, sample, params.eq);
        }
        sample = self.apply_low_pass(ch, sample, params.low_pass.max(params.occlusion * 0.8));

        let echo_wet = params.echo.max(params.reflection * 0.35).clamp(0.0, 1.0);
        let reverb_wet = params
            .reverb_send
            .max(params.reflection * 0.25)
            .clamp(0.0, 1.0);