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The Low Frequency Content Thread (films, games, music, etc)


maxmercy
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  • 2 months later...

I have this film, and this it how it graphs.  From about 1:33 to about 1:39, there is a strong 20Hz effect, you can see it in the average and peak graphs.  At one point it is encoded as hot as 108-109dB If played back at 'Reference Level'.  With a real low distortion playback system, it would lend an ambience to a scene that many would find disconcerting.  Low distortion 20Hz playback is rare to achieve.

JSS

 

1917.thumb.jpg.37236f63f07f84fedc7717096f8490d3.jpg

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On 2/28/2021 at 2:28 PM, Archaea said:

Has anyone measured the content of the 1917 movie?  Near the end there is some ominous low frequency bass. Reminds me of the Hunger Games raffle scene.  Can someone measure to see what frequency range that is on 1917?

you can see it here - https://beqcatalogue.readthedocs.io/en/latest/aron7awol/59350372/

the spike is clearly visible on the heatmap view

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  • 8 months later...

Left hand side is the amplitude of the digital signal (with '0' at the top being the highest it can possibly go).  The bottom is the frequency.

Summarizing that graph: the loudest bass is -20dB at 40Hz, and it drops fast under that (10dB lower is about half as loud to your ears, so the bass at 20Hz is over half the volume of the bass at 40Hz).  So ultimately you will not be blown away by any part of the low end in Shang-Chi.  It's all relatively high in the frequency range, and not all that loud.

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15 minutes ago, minnjd said:

Left hand side is the amplitude of the digital signal (with '0' at the top being the highest it can possibly go).  The bottom is the frequency.

Summarizing that graph: the loudest bass is -20dB at 40Hz, and it drops fast under that (10dB lower is about half as loud to your ears, so the bass at 20Hz is over half the volume of the bass at 40Hz).  So ultimately you will not be blown away by any part of the low end in Shang-Chi.  It's all relatively high in the frequency range, and not all that loud.

Thanks.  That's a crying shame.  Hopefully my Crowson will give me something a bit more to make this a better audio experience.

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  • 2 weeks later...

There is no single "correct" way to analyze a soundtrack to create a graph.  The issue of choosing the "best" parameters was discussed to a fair extent near the start of this thread.  Simply put, there is no "best" nor any clear canonical choice  Different parameters weigh different kinds of auditory phenomena differently.  That's just how it goes.

So the reason the graphs here don't match AVSForum is because they are analyzed using different parameters.  As such, they aren't really comparable among each other.

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