Csound-ir -- Make your instrument shine with Pro reverbs

It's a package for loading Impulse responses from the samplicity collection. It's made for the library csound-expression.

Right now two collections are implemented:

• Bricasti M7 (M7)

• TCE System 6000 (T6)

Install

The library can be installed with cabal. Download the source cd to the directory and run just run:

cabal install

Or with Hackage run anywhere:

cabal update
cabal install csound-ir

This installs the haskell definitions. But to use them we also need the actual samples to be installed.

Download them from the samplicity site. Note that the M7 collection is free but the T6 comes with modest price. to try the things out we can use only M7. Download it and place in your home directory inside the directory:

USER_HOME/.csound-ir

We need to create the directory .csound-ir in our home directory. Next place the collection of IRs there. It should look something like this:

USER_HOME/.csound-ir/Samplicity M7 Main - 01 - Wave, 32 bit, 44.1 Khz, v1.1

We are ready to go!

Quick start

To use this library just import the preset collection and apply the reverb to the signal:

import Csound.Base
import Csound.Ir.M7

pluck = fromMono $linseg [1, 0.2, 0] * osc 220

main = dac $ hDense 0.35 pluck

The first argument is Dry/Wet ratio the second argument is an imput signal (preferably stereo Sig2 or SE Sig2).

All presets have the signature:

hDense :: MixAt Sig2 Sig2 a => Sig -> a -> AtOut Sig2 Sig2 a

The type is rather dense and brainy indeed. But this is all need to signify that we are fgoing to apply it to something that is stereo or stereo-like signal. It's to be able to apply it to both Sig2 and SE Sig2. That is pure signals and signals with side effects.

Common naming conventions

All presets have single letter prefix that signifies the type of the reverb. conventions:

• hAbc - hall Abc

• rAbc - room abc

• cAbc - chamber abc

• aAbc - ambience abc

• sAbc - Abc space

• pAbc - plate abc

Local IRs

Sometimes we want to distribute the samples with generated csd in a single archive. But the library of IR's ties us to the USER_HOME. Not so good :(

We can use the local version for the IRs placement if we import the module with suffix Local:

import Csound.Ir.M7.Local

Then the samples are going to be searched for in the directory samples located at the same level as generated csd file.

Note that there is no need to copy all samples. Copy only those you truly need and like.

Happy Csounding in Adventurous spaces!

Acknowledgments

Big thanks to Peter Emanuel Roos who made available Hi-quality Impulse responses and prepared them with such a precision and dedication.