Purpose

Convolver applies an impulse response to a signal, so the source takes on the space or character captured in that response. Load an impulse response of a hall, a cabinet, or any captured space, and the input plays as if it were there.

Use

Insert it inline on a source or feed it from a send so you can blend wet and dry. Wire audio into in and out onward. Set Irfile to the impulse-response WAV, then use Drywet to balance the effect against the dry signal.

Inputs and outputs

• Input 0: in accepts mono or stereo PCM. It is required.
• Output 0: out emits the same shape as the input.

Controls

• Irfile: impulse-response WAV to load.
• Drywet: balance between the dry input and the convolved signal.
• Directgain: level of the dry path, in decibels.
• Wetgain: level of the convolved path, in decibels.
• Normalizeir: levels the loaded response so different files sit at a similar loudness.
• Crossfadems: crossfade time when the impulse response changes, so swaps stay smooth.
• Partitionsize: processing block size for the convolution. Leave at the default unless tuning latency against load.
• Maxirms: longest impulse response length kept, in milliseconds.
• Irchannels and Irsamplerate: describe the loaded response when it is not self-describing.

Notes

• Longer impulse responses give bigger spaces and cost more to process. Maxirms caps how long a response is used.
• Impulse responses can be swapped while audio runs, and Crossfadems keeps the change click-free.
• For a natural blend start with Drywet low and raise it into the space.

Ports

Inputs

• in row required
  audio_pcm_f32_mono_v1audio_pcm_f32_stereo_v1

Outputs

• out row
  mirror_input

Parameters

Drywet (Drywet) Float op('convolver').par.Drywet

Default:

1

Range:

0 to 1

Directgain (Directgain) Float op('convolver').par.Directgain

Default:

0

Range:

-60 to 12

Wetgain (Wetgain) Float op('convolver').par.Wetgain

Default:

0

Range:

-60 to 12

Partitionsize (Partitionsize) Int op('convolver').par.Partitionsize

Default:

256

Range:

64 to 8192

Maxirms (Maxirms) Int op('convolver').par.Maxirms

Default:

5000

Range:

100 to 10000

Normalizeir (Normalizeir) Toggle op('convolver').par.Normalizeir

Default:

On

Options:

Off, On

Crossfadems (Crossfadems) Float op('convolver').par.Crossfadems

Default:

50

Range:

1 to 1000

Irfile (Irfile) Str op('convolver').par.Irfile

Default:

"" (Empty String)

Irchannels (Irchannels) Int op('convolver').par.Irchannels

Default:

1

Range:

1 to 2

Irsamplerate (Irsamplerate) Int op('convolver').par.Irsamplerate

Default:

0

Range:

0 to 192000

Irring (Irring) Str op('convolver').par.Irring

Default:

"" (Empty String)