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What are the audio sample rate problems with STL, 32kHz vs. 44.1 kHz?

April 26, 2017audio kHz problems rate sample STL vs

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What are the audio sample rate problems with STL, 32kHz vs. 44.1 kHz?

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Sticking with 44.1 is ideal because that is the sampling rate of the IBOC system. However, the use of 32 kHz sampling on the STL will likely be imperceptible. The upper frequency limit to a 32 kHz system is 15 kHz, while it is 20 kHz for a 44.1 system. Ask yourself if this difference will be audible to your listener, using a codec that masks inaudible information anyway. The input to the IBOC system has a rate converter that can easily handle the 32 kHz.