Digital Drive

music or movie disks with 0dBFS in 20 - 40Hz?

98.217.204.116

dave789

Are there music or movie disks with 0dBFS in 20 - 40Hz?

Excluding CDs, DVDs, and Blu-ray disks containing "test tones."

I am just curious.

Follow Ups:

Yello, "The Eye" "Planet Dada (Flamboyant)" comes close - Ted Smith 12:01:44 06/26/14 (1)
Howdy

For example at about 58.5 seconds there's 34Hz @ about -2.2dBFS

-Ted
- RE: Yello, "The Eye" "Planet Dada (Flamboyant)" comes close - Awe-d-o-file 16:22:27 06/26/14 (0)
  Yello has always been fun on many levels, the music of course, big image and bass and sound from two guys. A long time favorite. Planet Dada is all over the room!
  
  ET
RE: music or movie disks with 0dBFS in 20 - 40Hz? - Tony Lauck 07:10:42 06/26/14 (0)
I've not seen any music, even organ music with 32 foot pedals, that has peaks below 30 Hz that are larger than peaks at higher frequencies in a spectral plot.There must be recordings out there, but I've yet to find them. My player software does room EQ and I use some low bass boost and the error counters would alert me if there was any clipping.

I have a 96/24 recording of a space shuttle launch, taken at the VIP station. This recording peaks at -0.2 dB FS and is not clipped. Most of this energy is low frequency noise with the peak at 10 Hz. The count-down voice over the PA system is -40 dB lower than the peak signal at launch. This live recording came from Bob Katz' web site. I would not call this recording a "test tone", more like a "digital destruction device". :-)

Tony Lauck

"Diversity is the law of nature; no two entities in this universe are uniform." - P.R. Sarkar
RE: music or movie disks with 0dBFS in 20 - 40Hz? - John Elison 14:09:53 06/25/14 (0)
I think you'll probably have to copy the digital waveforms to your computer using a program that allows you to look at the waveforms and measure the frequency. I used to own some Sound Forge software that provided this capability. Here are a couple of screen shots I took of a CD that had full-scale digital waveforms. In fact they appear to be clipped. Unfortunately, the frequency is around 110-Hz, but I'll bet you'll be able find some DVD movies that have full-scale waveforms within the frequency range you are looking for. Many of the DVD movies I watch seem to have some very powerful ultra-low frequencies.

Good luck,
John Elison

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