Re: [LAD] LV2::Synth from one note to another

On 08/10/14 13:36, Raine M. Ekman wrote: OK, so I found how to control the envelope with a new control, and how to output values in console while jalv runs, like this : printf("Key: %d, Period: %d, Vel: %d, Envelope: %f\n", key, m_period, velocity, m_envelope); And it prints this : Key: 77, Period: 276, Vel: 81, Envelope: 0.632812 Key: 79, Period: 246, Vel: 75, Envelope: 0.585938 Key: 64, Period: 584, Vel: 43, Envelope: 0.335938 Key: 76, Period: 292, Vel: 54, Envelope: 0.421875 Key: 65, Period: 551, Vel: 54, Envelope: 0.421875 Key: 64, Period: 584, Vel: 64, Envelope: 0.500000 Key: 77, Period: 276, Vel: 55, Envelope: 0.429688 Key: 76, Period: 292, Vel: 44, Envelope: 0.343750 Key: 76, Period: 292, Vel: 63, Envelope: 0.492188 Key: 67, Period: 491, Vel: 78, Envelope: 0.609375 So apparently the period /is/ the note. (I looked in the lib for the formula). Now how do I introduce those freq and portamento variables, are they variables (or parameters or functions or keywords) that exists for me to use it, or do I have to declare them and if so, how do I connect them to render()? Maybe I don't even need them, most of the logic seems to be already here: See, look how it goes : void render(uint32_t from, uint32_t to) { if (m_key == LV2::INVALID_KEY) return; for (uint32_t i = from; i < to; ++i) { m_envelope = *p(p_enve); float pwm = *p(p_pwm) + (1 - *p(p_pwm)) * m_envelope; float s = -0.25 + 0.5 * (m_counter > m_period * (1 + pwm) / 2); // float s = -0.25 + 0.5 * (m_counter > m_period / 2); m_counter = (m_counter + 1) % m_period; p(p_left)[i] += s; p(p_right)[i] += s; if (m_envelope > 0) m_envelope -= 0.5 / m_rate; } } And /from/ and /to/ are already there. This for loop determines the duration of the note, right? I have to use some of that time to go from /from/ to /to/ in a fraction of that time. How do I do that? -- Phil