Bad news, ladies... after listening to more than 2,200 encounters, scientists have finally worked out how to tell you're faking it

It is 1 of nan astir memorable scenes of immoderate Hollywood romcom.

But erstwhile Meg Ryan faked an orgasm successful a packed edifice successful When Harry Met Sally, it was acold excessively noisy to beryllium mistaken arsenic nan existent thing, opportunity scientists.

Swedish researchers declare to person discovered nan judge motion of erstwhile a female is faking it, and opportunity ecstatic large moans and screams – arsenic Ms Ryan acted retired successful beforehand of chap diners – are a rarity.

The scientists listened to a staggering 34 hours of audio recordings of chamber activity to scope their conclusions.

They said that overdoing it successful position of moaning excessively loudly and excessively overmuch meant that nan pleasance was astir apt faked.

Mild moans and grunts are overmuch much common, pinch very small speech, according to nan scientists. And, contrary to celebrated belief, men are conscionable arsenic vocal arsenic women.

'The high-pitched and extravagantly ecstatic screams associated pinch pornographic films were conspicuous by their absence,' nan investigation insubstantial said.

Researchers from Lund University analysed recordings of 2,239 intersexual encounters submitted to them by consenting couples. The recordings featured 21,314 sighs, 74,422 syllables, and 54,145 moans aliases grunts.

One of nan intends of nan investigation was to place immoderate sounds that could beryllium clues to faking it.

'For some men and women, vocalisations became longer, louder, much high-pitched, voiced, and tonal arsenic nan excitement peaked,' nan psychologists concluded.

'Men are not little vocal overall. Speech aliases moreover minimally verbalised exclamations are uncommon. Very fewer vocalisations could beryllium described arsenic screams.'

Greater volume, excessive vocalising, and magnitude of syllables were signs of a female faking it, while variety successful transportation and nan unexpectedness of immoderate sounds were motion of authenticity, nan listeners said.

'Based connected nan observations that women look to do astir of nan moaning, quality intersexual vocalisations are often formed arsenic small much than conscious attempts by women to please their partners,' nan researchers said.

'This conception is based connected self-reports aliases pornography studies arsenic nary 1 has yet analysed recordings of existent quality sex. This study, nan first to execute analyses of authentic intersexual episodes, paints a very different picture.

'Based connected this caller evidence, quality intersexual vocalisations are astatine slightest partially genuine and spontaneous expressions of liking, produced by men and women alike successful moments of aggravated pleasure.'

Men were conscionable arsenic vocal arsenic women, but astatine different times, they found.

While mild moans from women began somewhat earlier successful proceedings, men sighed and grunted until nan arousal level becomes very high, peaking 15 seconds earlier climax. This was followed by an mean of 10 seconds of soundlessness from some men and women. Sex therapist and writer Phillip Hodson said: 'This study asks immoderate intriguing questions.

'Sex is an anxious matter astir which location is much boasting than business – particularly successful a world wherever up to 80 per cent of women declare to person faked a climax, pinch nan aforesaid admittance from up to a 3rd of each men.

'Loud grunting successful furniture is nary much authentic than large grunting connected Wimbledon's Centre Court.'