The Intent for all practical purposes has 2 more dB in noise attenuation compared to the Real. It’s been said that for every 1 dB of more noise attenuation, it translate to a 10% improvement in speech clarity.
However, it also depends on how your HCP up with the Real vs the Intent. For example, although the Real 1 has available up to 10 dB max attenuation for Difficult environment, but sometimes, depending on your level of hearing loss, the default max attenuation for Difficult environment may be set to a lower max available value by Genie 2.
Take the example of my personal hearing loss (you can look at my audiogram attached to my profile avatar), the Real 1 setting would only default to 6 dB of max noise attenuation (although the max available attenuation for the Real is 10 dB). But if I switch over to the Intent 1, Genie 2 would assign a default max attenuation of 8 dB (with 12 dB being the max available for the Intent 1). That is telling me that Oticon has decided that they can be more aggressive with max noise attenuation on the Intent as compared to the Real for the same audiogram profile.
In theory, you would be curious to wonder why they don’t just use the max available value for the Tier level of that model so that they could reap the most noise attenuation benefit? I think that’s because there’s a trade-off between the level of noise attenuation versus the naturalness of the sound scene. It could be that if the noise attenuation is set to be too aggressive, the speech component may stand out more amongst the noise, but sound quality of the speech component might suffer. On top of that, it also might suppress the non-speech sounds too much, therefore goes counter against the Oticon open paradigm.
Anyway, back to the topic at hand, apparently Oticon has improved the DNN 2.0 enough that they feel that they can set the Intent to be more aggressive with the max noise reduction (as compared to the Real) without sacrificing the kind of trade-off mentioned above. That’s why my Intent’s default of max NR is set to 8 dB on the Intent 1, but only 6 dB on the Real 1. This alone would give me a 20% improvement in speech in noise contrast already.
Now it also depends on how your HCP set up your Intent vs your Real as well. Like in my case, at default values, the Intent is already 2 dB better than the Real already. But if I decided to boost the Intent to 10 dB and leave the Real at its 6 dB default, then the difference is 4 dB better for the Intent. If I decide to max out the Intent at 12 dB, then the difference is a whopping 6 dB more NR for the Intent.
The point is that when comparing the Real vs the Intent speech in noise performance, it’d be worth observing how the settings for max noise reduction are set between the 2 models. If the max NR values are set to be the same between them and the Intent still beats the Real, then it’s apple to apple comparison and we can conclude that the Intent still beats the Real on something else (maybe the DNN 2.0) other than the max NR value. But if one model’s max NR setting is different than the other model’s max NR setting, then it’s now apple to orange comparison and the Intent may simply perform better than the Real for speech in noise simply because its max NR value has been set to a higher value than the Real’s value, that’s all.