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Author Topic: What happens first, resampling or convolution?  (Read 1936 times)

Mister Cool

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What happens first, resampling or convolution?
« on: September 25, 2018, 01:21:48 pm »

In DSP option I have the possibility to resample all incoming music to a fixed sampling rate. On the other hand, MC suports the automated switching between various convolving filters, that match the sampling rate of the incoming music.

My question is: what happens first?

1. The resampling -> then I don‘t need multiple convolving filters, just only one for the fixed resampling rate (because the signal is already resampled to this fixed rate)

2. The convolution -> then the convolution uses optimized filters, which match the sampling rate of the incomming music, and then the convolved music is resampled to the given fixed sample rate
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Matt

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Re: What happens first, resampling or convolution?
« Reply #1 on: September 25, 2018, 01:49:22 pm »

Resampling is always performed first.
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Matt Ashland, JRiver Media Center

mattkhan

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Re: What happens first, resampling or convolution?
« Reply #2 on: September 25, 2018, 02:36:53 pm »

Resampling is always first but bear in mind JRiver can resample the convolution filter too

https://wiki.jriver.com/index.php/Convolution#Automatic_Resampling
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vma

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Re: What happens first, resampling or convolution?
« Reply #3 on: April 26, 2019, 03:38:55 am »

It would be nice to have possibility to use this:
2. The convolution -> then the convolution uses optimized filters, which match the sampling rate of the incoming music, and then the convolved music is resampled to the given fixed sample rate.
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MC26 Linux Debian Buster
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