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<blockquote data-quote="Scott Bolt" data-source="post: 131686" data-attributes="member: 3950">Re: Analog comeback?Interesting topic.I believe that the reason that IEM&#039;s are more susceptible to someone actually hearing the comb filtering is that the act of plugging up the ear canal amplifies the direct sound from their skull.The articles I read (thanks for the tip Tim) seem to indicate that the amplification is primarily the lower frequencies though.&nbsp; I have never heard of anyone hearing comb filtering in monitoring situations before since the wavelengths are longer and the ear is less sensitive to these frequencies.The only time I have ever personally heard issues with my IEM&#039;s was when I used my TC Helicon VoiceWorks for pitch correction.&nbsp; It is an older unit and all by itself puts around 10mSec of delay into the signal when performing this task.&nbsp; This sounds like having a thickening voice added to your monitor mix and it can be heard (although I can still live with it despite it being kind of annoying).I have my IEM&#039;s at a pretty decent level, but not so loud as to cause any fatigue.&nbsp; The send unit has limiters to protect from transients.It is a little bit ironic that a fairly new technology (IEM&#039;s) is an argument for using an older technology (Analog mixers).</blockquote>

[QUOTE="Scott Bolt, post: 131686, member: 3950"] Re: Analog comeback? Interesting topic. I believe that the reason that IEM's are more susceptible to someone actually hearing the comb filtering is that the act of plugging up the ear canal amplifies the direct sound from their skull. The articles I read (thanks for the tip Tim) seem to indicate that the amplification is primarily the lower frequencies though. I have never heard of anyone hearing comb filtering in monitoring situations before since the wavelengths are longer and the ear is less sensitive to these frequencies. The only time I have ever personally heard issues with my IEM's was when I used my TC Helicon VoiceWorks for pitch correction. It is an older unit and all by itself puts around 10mSec of delay into the signal when performing this task. This sounds like having a thickening voice added to your monitor mix and it can be heard (although I can still live with it despite it being kind of annoying). I have my IEM's at a pretty decent level, but not so loud as to cause any fatigue. The send unit has limiters to protect from transients. It is a little bit ironic that a fairly new technology (IEM's) is an argument for using an older technology (Analog mixers). [/QUOTE]

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