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[AUDITORY] 13dB Miracle
- To: AUDITORY@xxxxxxxxxxxxxxx
- Subject: [AUDITORY] 13dB Miracle
- From: Malcolm Slaney <000001757ffb5fe1-dmarc-request@xxxxxxxxxxxxxxx>
- Date: Fri, 31 Jan 2025 17:59:17 -0800
- Approved-by: malcolm@xxxxxxxx
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- Comments: cc: James Johnston <audioskeptic@xxxxxxxxx>, "karlheinz.brandenburg@xxxxxxxxxxxxx" <karlheinz.brandenburg@xxxxxxxxxxxxx>
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- Reply-to: Malcolm Slaney <malcolm@xxxxxxxx>
- Sender: AUDITORY - Research in Auditory Perception <AUDITORY@xxxxxxxxxxxxxxx>
JJ Johnston and Karlheinz Brandenburg generated this musical example to show the power of masking for audio compression. They called it the 13dB miracle because the same signal to noise ratio (13dB) sounds vey different depending on where the noise lies in the spectral-temporal plain.
I’ve put these sounds on this web page for posterity
https://ccrma.stanford.edu/~malcolm/13dB_Miracle/
I’m sending this to the auditory list because many of you might find this interesting (30s samples each) and to get this page into the archives (and Google).
I hope you enjoy.
- Malcolm