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 simulation of human heartbeat accelerating from 73bpm to 152bpm in 35seconds. Uses samples of real human heartbeat. Human Sound Effects, Heartbeat sounds
A simulation of human heartbeat accelerating from 63 bpm to 107 bpm in 45 seconds. Uses samples of real human heartbeat. Human Sound Effects, Heartbeat sounds
Thumping heartbeat at 64 BPM, made using real human heart sounds, with bleeps from a simulated hospital heart monitor , (EKG/ECG). Human Sound Effects, Heartbeat sounds
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 Sound Effects, Alarm sounds
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. Human Sound Effects, Heartbeat sounds
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 Sound Effects, Beeping
A simulation of human heartbeat accelerating from 78bpm to 135bpm in 35seconds. Uses samples of real human heartbeat. Human Sound Effects, Heartbeat sounds
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. Human Sound Effects, Annoying sounds
A simulation of a thumping human heartbeat accelerating from 65 bpm to 166 bpm in 48 seconds with a simulated medical monitor (EKG) bleep on each beat. Uses samples of real human heartbeat. Human Sound Effects, Heartbeat sounds
A (simulated) telecommunications sound of the type which accompanies text being displayed on screen in movies and TV shows. (#3), Computer Sound Effects, Text Display
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 and Phone Sounds, Electronic phone ringers
A synthesised heartbeat at 53 BPM with whooshing Doppler ultrasound-type effect. The sound could also be used for the sound of the pulse rushing in any artery not just heart. Human Sound Effects, Heartbeat sounds
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. Human Sound Effects, Heartbeat sounds
A (simulated) telecommunications sound of the type which accompanies text being displayed on screen in movies and TV shows. (#4), Computer Sound Effects, Text Display
Alarm based on submarine dive warning siren, but could be used for any extreme alarm, (or novelty ringtone). Loopable. Watercraft Sound Effects, Submarines
Bleeps like those heard in radio communications with NASA astronauts.
Could also be used for other signals / alerts, e. g. medical monitor beep, or timer countdown. Electronic Sound Effects, Beeping
Alarm based on WWII submarine dive warning klaxon, but could be used for any extreme alarm, (or novelty ringtone). Watercraft Sound Effects, Submarines
Three pairs of materialize / de-materialize 'Transporter' sounds, somewhat similar to Star Trek TV series, last pair are deliberately distorted. Science Fiction Sound Effects, Transporters
Very bassy stereo rumble, like a rocket engine heard from inside a spacecraft.
Note this sound is only audible on devices which can reproduce low frequencies. Science Fiction Sound Effects, Spaceship interiors
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 Sound Effects, Spaceship warnings
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 Sound Effects, Beeping
An accurate recreation of the "static" hiss noise as heard on analogue TV or FM radio, (in wide stereo), similar to white noise, loopable. Electronic Sound Effects, White noise
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 Sound Effects, Talking / Male / English (American)
Recreation of "hardware disconnect" from computer sound, e. g. when USB device is removed from computer. Could also be used for other computer alerts. Computer Sound Effects, Computer misc
DTMF telephone tones as if dialling 1-800-555-1234. Tones are repeated twelve times, increasingly quickly. This number has been used in fiction but may not actually be fictional. Ringers and Phone Sounds, Dialing
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 Sound Effects, Click sounds
Thirty five 1KHz censor bleeps 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 Sound Effects, Beeping
A rapid random sequence of DTMF phone tones, like a dial-up modem, or auto dialler, dialling an impossibly long telephone number. Ringers and Phone Sounds, Dialing
A very deep synthesised heartbeat at 57 BPM with an alternate beat effect. Loopable. Note: this recording can only be heard properly via speakers which can reproduce low frequencies. Human Sound Effects, Heartbeat sounds
Synthesised robotic heartbeat sounds at different speeds and pitches, (progressively slower and deeper). Designed for one beat sound to be selected from this group then looped at the desired rate. Human Sound Effects, Heartbeat sounds
Loud phasing security-type alarm with strong high-frequency content. Similar to "personal attack" alarm or emergency service vehicle. (Loopable). Electronic Sound Effects, Electronic alarms
