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noteoff during the attack section of the modulation envelope.

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- this insures seamless pitch and filter frequency cutoff transition.
This commit is contained in:
jjceresa 2018-07-01 23:00:54 +02:00
parent d0958c6e35
commit 8d8e7ecd20
1 changed files with 19 additions and 1 deletions
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20
src/rvoice/fluid_rvoice.c
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@ -592,7 +592,7 @@ fluid_rvoice_noteoff_LOCAL(fluid_rvoice_t *voice, unsigned int min_ticks)
/* A voice is turned off during the attack section of the volume
* envelope. The attack section ramps up linearly with
* amplitude. The other sections use logarithmic scaling. Calculate new
* volenv_val to achieve equievalent amplitude during the release phase
* volenv_val to achieve equivalent amplitude during the release phase
* for seamless volume transition.
*/
if(fluid_adsr_env_get_val(&voice->envlfo.volenv) > 0)
@ -605,6 +605,24 @@ fluid_rvoice_noteoff_LOCAL(fluid_rvoice_t *voice, unsigned int min_ticks)
}
}
if(fluid_adsr_env_get_section(&voice->envlfo.modenv) == FLUID_VOICE_ENVATTACK)
{
/* A voice is turned off during the attack section of the modulation
* envelope. The attack section use convex scaling with pitch and filter
* frequency cutoff (see fluid_rvoice_write(): modenv_val = fluid_convex(127 * modenv.val)
* The other sections use linear scaling: modenv_val = modenv.val
*
* Calculate new modenv.val to achieve equivalent modenv_val during the release phase
* for seamless pitch and filter frequency cutoff transition.
*/
if(fluid_adsr_env_get_val(&voice->envlfo.modenv) > 0)
{
fluid_real_t env_value = fluid_convex(127 * fluid_adsr_env_get_val(&voice->envlfo.modenv));
fluid_clip(env_value, 0.0, 1.0);
fluid_adsr_env_set_val(&voice->envlfo.modenv, env_value);
}
}
fluid_adsr_env_set_section(&voice->envlfo.volenv, FLUID_VOICE_ENVRELEASE);
fluid_adsr_env_set_section(&voice->envlfo.modenv, FLUID_VOICE_ENVRELEASE);
}