Bitrate/Sample Rate Differences

[bitnom]

How much of an impact does the sample rate and bitrate have? My use case is that I need to perform speaker verification across multiple sample rates/codecs such as AMR and EVRC. I will of course be converting them to wav for training but since I will be performing the verification across multiple sample rates, I'm wondering if I should adapt my training set to have varying sample rates as well. Thoughts?

[HarryVolek]

It's logical that lowering the sampling rate and bitrate will hurt accuracy, but how much I'm not sure off off the top of my head. I would just try it.

I think it's a good idea to adopt the training set to have multiple sampling rates.