Avisoft RECORDER, version 4.4.2 (07 April 2025)
- The FIR filter algorithm has been optimized for modern processors that have fast integrated floating-point units, resulting in reduced CPU load.
- The new custom filter option on the Input Device Settings section of the Configuration dialog box can be used to flatten frequency responses of MEMS microphones that exhibit unwanted resonance peaks.
- The TRG / TRIGGER output of the UltraSoundGate device can now be remote-controlled from the SASLab Pro software via DDE, which allows to send out TTL pulses in response to certain classified vocalizations (see Advanced USGH Device Settings).
- The new option Options > Display > Root mean square can help better measuring absolute sound levels (see Display)
- On the waveform and energy in f-range displays it is now possible to measure amplitudes and durations using the mouse cursor.
- The maximum file size setting on the Configuration dialog box can now define individual limits for each channel when the new option Options > Allow individual maximum file sizes for each channel has been activated.
- The newly added decimation feature allows recording from the same physical audio input device at two different sample rates, which can be used for instance for monitoring both bats and birds using a single broad-band microphone only.
- The resolution of the log file time stamps has been increased to milliseconds. Note however that the accuracy of these timestamps is limited due to the pipline processing of the incoming data.
