VMS Support For High Audio Sample Rates?

I have an application that requires high quality, high bandwidth (e.g. 20-20,000 Hz preferred) audio recording in order to maximize speech intelligibility from our specialized microphone installations. The "open" VMS systems I have looked at so far, such as Milestone, appear to support only 8KHz sample rate G.711 and G.726 VOIP codecs. Some cameras support AAC but they appear to cap out at 16 KHz sampling.

If I build or source an audio capture device that streams either AAC or uncompressed audio over RTP at above 16 KHz sampling, is there a VMS that can record that?

FYI our existing solution is a custom DVR and we are looking to transition to IP.

Thanks for any help,

Steve

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