###### (This function is part of SDL_mixer, a separate library from SDL.) # Mix_VolumeChunk Set the volume for a specific chunk. ## Header File Defined in [](https://github.com/libsdl-org/SDL_mixer/blob/main/include/SDL3_mixer/SDL_mixer.h) ## Syntax ```c int Mix_VolumeChunk(Mix_Chunk *chunk, int volume); ``` ## Function Parameters | | | | | ------------------------ | ---------- | ------------------------------------------------------------------------------- | | [Mix_Chunk](Mix_Chunk) * | **chunk** | the chunk whose volume to adjust. | | int | **volume** | the new volume, between 0 and [MIX_MAX_VOLUME](MIX_MAX_VOLUME), or -1 to query. | ## Return Value (int) Returns the previous volume. If the specified volume is -1, this returns the current volume. If `chunk` is NULL, this returns -1. ## Remarks In addition to channels having a volume setting, individual chunks also maintain a separate volume. Both values are considered when mixing, so both affect the final attenuation of the sound. This lets an app adjust the volume for all instances of a sound in addition to specific instances of that sound. The volume must be between 0 (silence) and [MIX_MAX_VOLUME](MIX_MAX_VOLUME) (full volume). Note that [MIX_MAX_VOLUME](MIX_MAX_VOLUME) is 128. Values greater than [MIX_MAX_VOLUME](MIX_MAX_VOLUME) are clamped to [MIX_MAX_VOLUME](MIX_MAX_VOLUME). Specifying a negative volume will not change the current volume; as such, this can be used to query the current volume without making changes, as this function returns the previous (in this case, still-current) value. The default volume for a chunk is [MIX_MAX_VOLUME](MIX_MAX_VOLUME) (no attenuation). ## Version This function is available since SDL_mixer 3.0.0. ---- [CategoryAPI](CategoryAPI), [CategoryAPIFunction](CategoryAPIFunction)