Compute phase deviation between successive FFT frames framedelta~ computes a running phase deviation by subtracting values in each position of its previously received signal vector from the current signal vector. When used inside a pfft~ object, it keeps a running phase deviation of the FFT because the FFT size is equal to the signal vector size. Cycling '74 MSP MSP FFT (signal) FFT Phase Frame TEXT_HERE (signal) No Right Inlet TEXT_HERE (signal) FFT Phase Deviation TEXT_HERE TEXT_HERE TEXT_HERE Signal input for computation of deviation The input on which the deviation will be computed. For each signal vector, the first sample of its output will be the first sample in the current signal vector minus the first sample in the previous signal vector, the second sample of its output will be the second sample in the current signal vector minus the second sample in the previous signal vector, and so on.