This inheritance list is sorted roughly, but not completely, alphabetically:

[detail level 1234]

Cost::TelTone::_tonedef
Cost::TelTone::_tonekey
Cost::Audio	Generic audio class to hold master data types and various useful class encapsulated friend functions as per GNU Common C++ 2 coding standard
Cost::AudioBase	AudioBase base class for many other audio classes which stream data
Cost::AudioBuffer	For mixing one-to-one soft joins
Cost::AudioDevice
Cost::AudioFile	A class used to manipulate audio data
Cost::AudioStream	AudioStream accesses AudioFile base class content as fixed frames of streaming linear samples
Cost::AudioCodec	The codec class is a virtual used for transcoding audio samples between linear frames (or other known format) and an encoded "sample" buffer
Cost::AudioResample	Used to manage linear intropolation buffering for rate conversions
Cost::AudioTone	Used to create a frame of audio encoded single or dualtones
Cost::DTMFTones	DTMFTones is used to generate a series of dtmf audio data from a "telephone" number passed as an ASCII string
Cost::MFTones	MFTones is used to generate a series of mf audio data from a "telephone" number passed as an ASCII string
Cost::TelTone	An object that is used to sequence and extract telephony tones based on a telephony tone descriptor retrieved from the parsed international telephony tone database
Cost::DTMFDetect	DTMFDetect is used for detecting DTMF tones in a stream of audio
Cost::Audio::dtmf_detect_state_t
Cost::Audio::goertzel_state_t
Cost::Audio::Info	Audio source description
Cost::Audio::mpeg_audio
Cost::Audio::mpeg_tagv1
Cost::Audio::tone_detection_descriptor_t