Re: [Discuss-gnuradio] gr_fractional_interpolator interpolation ratio

[Abdalla Sokar]

if you used a value smaller than 1 it will be a decimator

--- On Thu, 7/23/09, Karthik <address@hidden> wrote:

From: Karthik <address@hidden>
Subject: [Discuss-gnuradio] gr_fractional_interpolator interpolation ratio
To: "GNURadio Discussion List" <address@hidden>
Date: Thursday, July 23, 2009, 4:22 AM

This might be a silly question. But here goes ...

In gr_fractional_interpolator_ff I observed that to make the filter interpolate between input values you have to set the interpolation ratio < 1 and this is because the block has this line in the code "set_relative_rate (1.0 / interp_ratio)". I always thought for a block named interpolator a value of interpolation_ratio > 1 would be understood as increasing the sampling rate by that factor. Is this not correct?

Karthik

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