| ButterPZ | Calculate Butterworth Filter Poles and Zeros |
| CalcCorners | Calculate Corner Frequencies |
| COLOC | Seismic Data From Co-Located Seismometers |
| ConvDiffCoef | Convert Differential to Difference Eq. Coefficients |
| ConvolveTrace | Convolve Trace with Instrument Response |
| DeconSeis | Deconvolve discrete instrument response from many traces |
| DeconTrace | Deconvolve Instrument Response (Single Trace) |
| DPZLIST | List of Pre-Calculated Discrete Instrument Responses |
| GetDPZ | Retrieve Pre-Calculated Discrete Instrument Response |
| GetPZ | Retrieve Included Continuous Instrument Response |
| MakeDPZ | Calculate Find Digital Match to Analog Poles/Zeros |
| MakeRespSP | Calculate Poles and Zeros of Short-Period Sensor |
| MatchCoefDPZ | Find Digital Match to Analog Poles/Zeros |
| Metropolis | Metropolis-Hastings Markov Chain Monte Carlo |
| Oversample | Oversample by Nearest-Neighbor Interpolation |
| PlotResp | Plot Instrument Responses |
| PZ2Coef | Calculate Recursive Filter Coefficients |
| PZ2Resp | Calculate Instrument Response from Poles/Zeros |
| PZLIST | List of Continuous Instrument Responses |
| ReadInstr | Read IRIS Instrument Response File |