Originally Posted by JD
5hz and other low frequencies.
I'm curious about the fact on how all that all ultra low frequensies are being reproduced. As far as I now, humans are only able to hear frequencies of above 20Hz. below are subject to feel only. Right?
All audio equipment specially headphones and speakers do perform very sub-linear and perform very poor or not at all at these frequencies.
LifeForm instructions told me to play as is... The first thing I noticed was a very deep (pretty loud) deep hum. I do have an high end audio-system that is able to produce deep tones, but don't know anything about the linearity. What is the right amount these tones... Linearity is pretty much a non defined variable in this matter.
Other: Can ultra low frequency be compressed at all. What's the frequency range of mp3? 0-xxKhz depending on the bitrate?
In case of binaural beats at low levels... Is it still present in compressed format or completely masked?
A few comments would be appreciated. (raven?)
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To respond to the first part of your post I think you may be confusing pitch (wave) frequency with entrainment frequency. Human hearing falls in the range 20-20,000 Hz and most decent headphones capture this audio range. Entrainment pulses can be of any pitch frequency that is audible (ie. 20Hz-20kHz), but vary in terms of beats (cycles) per second, also measured as frequency in Hz. Thus an entrainment pulse of 10Hz simply means it pulses 10 times per second, independent of pitch.
