Most Puppy versions use the ALSA system as opposed to OSS. To configure the sound use the SoundWizard and then set level using RetroVol or AlsaMixer.

For advanced sound include routing between program use Jack.

RetroVol - GUI for sound levels

AlsaMixer - control sound level via commandline app

ALSA - Advanced Linux Sound Architecture

audiohardware How to see sound hardware configuration

OSS - Open Sound System - alternative sound system

ESound - Audio server

Audio Audio Information

SoftwareMultimedia Multimedia Software index