There is an audio codec called "<b>HCA</b>" that compresses audio to 1/6 to 1/12.
Just modify the function that creates the voice pool and specify the HCA data using the queue ID, file name, etc.
Specifically, it is as follows.
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CriAtomExVoicePoolHn criAtomExVoicePool_AllocateAdxVoicePool(const CriAtomExAdxVoicePoolConfig *config, void *work, CriSint32 work_size)
Create an ADX Voice Pool.
CriAtomExVoicePoolHn criAtomExVoicePool_AllocateHcaVoicePool(const CriAtomExHcaVoicePoolConfig *config, void *work, CriSint32 work_size)
Create an HCA Voice Pool.
For more information, please refer to the sample program " \ref criatom_samples_simple_playback_hca ".