PDF) Sound attenuation of TDH-39 earphones in a diffuse field of narrow-band noise
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![PDF] NBS-9A coupler-to-eardrum transformation: TDH-39 and TDH-49 earphones. | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/4d3959c541e9ae90df62daf4d88cb866721209ce/2-Figure1-1.png "PDF] NBS-9A coupler-to-eardrum transformation: TDH-39 and TDH-49 earphones. | Semantic Scholar")
PDF] NBS-9A coupler-to-eardrum transformation: TDH-39 and TDH-49 earphones. | Semantic Scholar
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Telephonics TDH 39 P Audiometer Headphone Headset Tested Works | eBay
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![PDF] Reference equivalent threshold levels for pure tones and 1/3-oct noise bands: insert earphone and TDH-49 earphone. | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/b654d8c29d79b2a555975b65531a3aac874da987/3-TableI-1.png "PDF] Reference equivalent threshold levels for pure tones and 1/3-oct noise bands: insert earphone and TDH-49 earphone. | Semantic Scholar")
PDF] Reference equivalent threshold levels for pure tones and 1/3-oct noise bands: insert earphone and TDH-49 earphone. | Semantic Scholar
