R help - Mar 2012 - Cross-Power Spectral Density and Welch's Method

Hello to R uers,

I am wondering if there is an easy way to perform a cross-power spectral density
estimation of ?two timeseries (x and y) using the Welch's method.

Both packages "bspec" and "oce" provide a function to
calculate the PSD with the Welch's method, but only for a timeserie.

Thank you in advance.

Regards,
Pascal