UK artist and sound designer Robert Stevenson is the powerhouse behind Ahrdee, and his amazing Sound Effects keep rolling out and moving into our clients's productions around the world. From thumping heart beats to bleeping heart monitors, and Sci Fi Red Alerts of aliens on board, to noisy Submarine diving bells, Ahrdee's SFX are a must-have for your ER medical dramas or full-throttle action movies...
A deep synthesised heartbeat, with an alternate beat effect, speeding up from 60BPM to 138BPM in 60 seconds. Note: this recording can only be heard properly via speakers which can reproduce low frequencies. Humans,
A simulation of “ringing in ears” sound (tinnitus). Sometimes used after explosion or other loud sound effect. This sound will only be audible on devices which can reproduce high frequency sound. Humans, Annoyance
A loud alarm similar to, but not the same as, the Star Trek ‘Red Alert’ klaxon on the original Star Trek TV series. Note: this is not a sample lifted from a Star Trek sound track, it has been made from scratch, (synthesised), so there is no infringement of "Star Trek" copyright. Foley,
An accurate simulation of the Greenwich Time Signal, a.k.a. “The Pips” used to mark the hour on BBC radio broadcasts. The six pip time signal is played six times, the takes are increasingly loud. Electronic,
A synthesised heartbeat at 139 BPM with whooshing Doppler ultrasound-type effect. A simulation of baby's heartbeat in womb: foetal cardiac ultrasound. It could also be used for the sound of the pulse rushing in any artery not just heart. Humans,
A synthesised (not recorded) electronic warble sound somewhat similar to UK “trimphone” ring and UK phone ringing tone. A generic electronic telephone ring which could be used for a mobile telephone ringtone. Ringers Phones, Electronic phone ringers
A deep synthesised heartbeat, with an alternate beat effect, speeding up from 66BPM to 184BPM in 34 seconds. Note: this recording can only be heard properly via speakers which can reproduce low frequencies. Humans,
Thirty five censor bleeps (1KHz plus 3rd harmonic) increasing in duration from 0.05 seconds to 2.5 seconds.
As used to replace swearing or other words which should not be broadcast, (e. g. names and addresses ). Electronic,
A synthesised, but natural sounding, heartbeat effect accelerating from 73bpm to 200bpm in 65 seconds, with subtle stereo reverberation. NB: this recording can only be heard properly on devices which can reproduce low frequencies. Humans,
American man counts down from ten to zero, once per second, with intercom effect, and NASA-style tannoy (Public Address) echo effect. Two takes, second take has more echo-reverb. Talking, American / Male
Alarm similar to, but not the same as, Star Trek ‘Red Alert’, (i. e. NOT taken from Star Trek sound track). This alarm sound could be used for any alarm, not necessarily science fiction. Science Fiction,
Simple synthesised click sounds of increasing duration. Initially like dripping water hitting hard surface, then clock-like “tick”, then "snap", then “clack”, and finally a “tock” sound. Multimedia, Click sounds