sonidojamon

Been digging into Acoustic IRs for the past couple of days. As an experienced audio and software engineer, I have a thing to point out. Most of the homebrew or captured IRs (like the fishman aura I've heard above) sound slightly out of phase to me. And too roomy. I'm sure that if you compare a recording of the Fishman Aura output vs the piezo + "captured" Aura IR, there's gonna be a big difference. That's why the 3 Sigma ones work so well. Measurements and processing have been done AFTER phase-aligning the mic signal with whichever other signal was being used to create it. And also, they have been recorded in very dry spaces. A touch of ambience gives realism, but nothing beats a nice dry acoustic recording. Room and ambience can be easily added later in the mixing process. Leave that to the mixing engineer. In live situations, every venue adds a lot of space and ambience to the sound before it reaches the audience. Trying to heavily emulate a room or spatial sound just muddies the signal, and looses it in the mix. Long reverbs and the like are another thing, that's creative stuff, EFFECTS. A completely dry guitar sound is not pleasing to listen to when using headphones or monitors next to our computer. But that's not the real deal. People will enjoy our music LIVE, IN A REVERBERATING SPACE or in cans/speakers AFTER THE MASTERING AND MIXING PROCESS IS DONE Bear this in mind: An IR is JUST A FILTER + SOME SHORT FQ BODY RESONANCE/DECAY. The rest's is just (reflections) mud, better to be added later. So c vcvfapture your miked up acoustics as dry as possible to get the closest to the amazing sounding 3 Sigma IRs, and stop downloading and sharing homemade IRs by unexperienced engineers, as most of them sound awful and have lots of phase issues, and thus, unpleasing resonances. I've listened to many nice piezo acoustic sounds turned into boxy, sad, lifeless "real" acoustics the last 2 days. Not one sound that I though was decent until I heard the above 3 sigma IRs. Experimenting is fun, and you learn a lot in the process, but this IR stuff is far more complicated than you think, and probably far beyond the skills of most of us. So let it go if it becomes frustrating. I'm gonna do a few tests to support my theories and I'll gladly share the results here so you can tell me what you think. Thanks for all your posts. I'm a newbie in this forum, and I've learned a lot in a very short time thanks to them. So far, I'll stick to my iRig Acoustic Stage mic + DSP system. It works great!! You should check it out! Peace!