HEDD Audio Lineariser

Bypass for rendering

A reproduction with linear phase occasionally can show higher peaks than the original waveform. To avoid overloads during filtering the gain is reduced by 9 dB. To allow 1:1 rendering, a hard bypass (called Bypass to render) is possible (in addition to the In / Out  option), it allows rendering the original file without changes of any kind.

MODEL

Each HEDD monitor is carefully measured in the large anechoic chamber of the Technical University in Berlin. The individual impulse response serves to linearise the respective model both in time and frequency.

HEDD alignment curve
This setting represents what we consider to be the ideal sound for normal listening rooms. It exhibits a bass response identical to the analog HEDD design.

Anechoic flat curve
Based on 1m measurements in an anechoic room, this setting leads to a different bass response.

PHASE

Linear full range  – Latency < 100 ms
Phase response is linearised from 30 Hz – 40 kHz with deviations < ±1°. Recommended for mixing, post-production, and normal playback.

Linear above 500 Hz – Latency < 5 ms
Phase linearisation starts above 500 Hz only. This setting better suits recording situations.

Minimum Phase – Latency < 2 ms
No phase linearisation is applied, however frequency response – like in all other cases – becomes flat to ± 0,5 dB. There is practical no latency in the signal path.

available in VST, AU, and AAX format