Originally Posted by noah katz
"As you are probably aware, Audyssey has released an extension of their room correction software called Dynamic EQ...Do you plan on introducing a similar feature in your Harman products, or will you be using a static tilted target curve?"
Doesn't Dolby volume, which the HK 7500 receiver has, do that?
Yes, Dolby Volume is similar in that it attempts to adjust the equalization based on the volume of the content. One of the differences is it uses Dynamic Range Compression. Audyssey Dynamic EQ doesn't use DRC. The user is presented the option of engaging Audyssey Dynamic Volume, which works in conjunction with Dynamic EQ, and it does use DRC.
Regardless, my questions to Dr. Olive had to do with a speculation as to why the test listeners preferred a boost in the bass gently trailing off to a cut in the treble. Without repeating my entire posting, let me summarize my points regarding the preferred bass response.
If the listening test were conducted at levels lower than what the recording engineer experienced during mixing, that might account for the preference in boosting the bass. If that were the case, depending on the difference in levels, a room correction technique that happened to have the right boost for the selected content might have an advantage in the testing. Since Audyssey's Reference target curves are designed to be flat out to 4 kHz this would put them at a disadvantage if the content were played back below the mixing levels.
On the other hand for another selection of content, particularly content mixed to film industry standards, Audyssey MultEQ with Dynamic EQ engaged might have an advantage over competing room correction techniques, if the competing technique used a fixed bass boost or "tilt" in the frequency response regardless of listening levels.
If the Harman room correction techniques use a fixed "tilt" in the frequency response, it is doubtful that overlaying Dolby Volume processing into the mix would improve preference testing, particularly if it adds another bass boost and engages Dynamic Range Compression.