---
name: "al_set_sample_instance_pan"
section: "3alleg5"
platform: "linux"
package: "allegro5-doc"
version: "2:5.2.10.1+dfsg-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/al_set_sample_instance_pan/3alleg5"
---

# al\_set\_sample\_instance\_pan(3alleg5)

Allegro 5 API

## NAME

al\_set\_sample\_instance\_pan - Allegro 5 API

## SYNOPSIS

-

  ```
  #include <allegro5/allegro_audio.h>
  bool al_set_sample_instance_pan(ALLEGRO_SAMPLE_INSTANCE *spl, float val)
  ```

## DESCRIPTION

Set the pan value on a sample instance. A value of -1.0 means to play the sample only through the left speaker; +1.0 means only through the right speaker; 0.0 means the sample is centre balanced. A special value ALLEGRO\_AUDIO\_PAN\_NONE(3alleg5) disables panning and plays the sample at its original level. This will be louder than a pan value of 0.0.

Note: panning samples with more than two channels doesn’t work yet.

Returns true on success, false on failure. Will fail if the sample instance is attached directly to a voice.

## SEE ALSO

al\_get\_sample\_instance\_pan(3alleg5), ALLEGRO\_AUDIO\_PAN\_NONE(3alleg5)