Playback by Changing Parameters

Samples Directory

/cri/pc/samples/criatomex/playback_param

Data used in the sample

/cri/common/smpdata/criatomex/

• SampleProject.acf
• AtomCueSheet.acb
• AtomCueSheet.awb
  

Sample description

CRI Atom allows you to change player parameters such as volume, playback pitch, and filter cutoff frequency during audio playback.

Parameters can be changed before or during playback.

Parameters are set for the player using dedicated parameter setting functions, but to actually reflect the changes in the player, you need to execute the criAtomExPlayer_UpdateAll function for the player.

The code to set player parameters and apply a low-pass filter is shown below.

\code
CriAtomExPlayerHn player;
 
    /* Set volume */
    criAtomExPlayer_SetVolume(player, 1.0f);
    /* Set a pitch in cents */
    criAtomExPlayer_SetPitch(player, 0.0f);
    /* Set cutoff frequency for band pass filter */
    criAtomExPlayer_SetBandpassFilterParameters(player, 0.0f, 1.0f);
    /* Set biquad filter parameters */
    criAtomExPlayer_SetBiquadFilterParameters(player, CRIATOMEX_BIQUAD_FILTER_TYPE_LOWPASS, 1.0f, 0.0f, 1.0f);
    /* Apply parameters for all Voices used by the player */
    criAtomExPlayer_UpdateAll(player);