Free (OpenSource) SubWoofer audio processor project.

[BrianHG]

Finally, here is the demo I recorded.    I chose this new 2018 'Lost In Space' trailer as it is short enough to just squeeze in sample .mp3 of the entire thing, though at a low bitrate.  If you are using your PC to play the audio samples, make sure you have the sound enhancements disabled in Windows Speaker Properties / Enhancements tab.

Step 1, the original Youtube source:

[BrianHG]

  Wait a sec, it's only a 1mb limit, cutting the demo in half...
Please excuse the extra lousy bitrate...
Enhanced audio in next message.

Just PM me your email address if you want a high quality full versions & I'll 'We Transfer' you the high bitrate, full .mp3 files
.

[BrianHG]

Here is the same audio, but with the Subwoff full on, full volume in the 25hz filter setting.
Please excuse the extra lousy bitrate and the fact that I had to shorten the clip.
My sound card sampler could only do so good with the output of the Subwoff board, it is more impressive in real life.
You will not hear the effect on headphones, or, speakers which only go down to around 45hz, or, an amplifier whose output goes through a series cap as a DC filter for a mid DC voltage bias designed amplifier.

Just PM me your email address if you want a high quality full versions & I'll 'We Transfer' you the high bitrate, full .mp3 files

See the scanned warning from one of my classical music CDs.
YOU HAVE BEEN WARNED BEFORE PLAYING THIS FILE.

[BrianHG]

Here is the same audio, but with the Subwoff in the subsonic 25hz only setting.
Wow, this is the full version.  I guess it compressed extremely well.

Warning, this is only low frequency sound.
it clipped ever so slightly once or twice, however, this is a limitation of my sound card sampler's input being too sensitive.

YOU HAVE BEEN WARNED BEFORE PLAYING THIS FILE.

[Audioguru]

Why does the orchestra play so loudly? It is not even needed.

[BrianHG]

Why does the orchestra play so loudly? It is not even needed.

This is how modern action movie/TV trailers are today.  All about the action, and, I had to squish something publicly available into a 1min 45 sec limit.  You are right, I might have found something better to demo with.  Though, if all you heard was the music going more boom, you missed out on the waves, spaceship sinking, tremors on the land, ect...  This might be either be too high a lower frequency limit or head phones, of PC sound card.  Sort of what I built this device to overcome, but, if you don't have the device, I can only say that this is as good as my sampler on my PC motherboard is capable of sampling.  I have no control of the equipment on the other side.

[paulca]

Why does the orchestra play so loudly? It is not even needed.

People doubt the power of music, focusing on the technical.

Pick a film that made you weep or feel stressed and play it without the sound on.  Totally different experience.

I played a game that I couldn't complete because it stressed me too much, "Alien Isolation", the thing that makes it so horridly tense is the soundscape.  The sounds and music play and tweak at you constantly massaging your stress and suspense.  Doom awaits you constantly.  With the infrequent and usually unexpected "BOOO!", moment.   With the sound off it's just a game, but you lose because you need to hear to get through the game, so headphones go back on, stress levels go through the roof.

[BrianHG]

  My neighbors came knocking at my door today...