void AmbisonicsMeter::setNumberOfLoudspeakers(long aNumberOfChannels)
{
Planewaves::setNumberOfLoudspeakers(aNumberOfChannels);
m_vectors->setNumberOfLoudspeakers(aNumberOfChannels);
m_number_of_outputs = 0;
if(m_loudspeakers_amplitudes)
cicm_free(m_loudspeakers_amplitudes);
if(m_loudspeakers_peaks)
cicm_free(m_loudspeakers_peaks);
if(m_loudspeakers_energies)
cicm_free(m_loudspeakers_energies);
if(m_loudspeakers_angles_mapped)
cicm_free(m_loudspeakers_angles_mapped);
if(m_loudspeakers_angles_width)
cicm_free(m_loudspeakers_angles_width);
cicm_malloc_vec_d(m_loudspeakers_amplitudes, m_number_of_loudspeakers);
cicm_malloc_vec_d(m_loudspeakers_peaks, m_number_of_loudspeakers);
cicm_malloc_vec_d(m_loudspeakers_energies, m_number_of_loudspeakers);
cicm_malloc_vec_d(m_loudspeakers_angles_mapped, m_number_of_loudspeakers);
cicm_malloc_vec_d(m_loudspeakers_angles_width, m_number_of_loudspeakers);
for(int i = 0; i < m_number_of_loudspeakers; i++)
{
m_loudspeakers_amplitudes[i] = 0.;
m_loudspeakers_peaks[i] = 0.;
m_loudspeakers_energies[i] = -90;
}
double curAngle, prevAngle, nextAngle, prevPortion, nextPortion;
for(int i = 0; i < m_number_of_loudspeakers; i++)
{
curAngle = m_angles_of_loudspeakers_double[i];
if (i != 0)
prevAngle = m_angles_of_loudspeakers_double[i-1];
else
prevAngle = m_angles_of_loudspeakers_double[m_number_of_loudspeakers-1];
if (i != m_number_of_loudspeakers-1)
nextAngle = m_angles_of_loudspeakers_double[i+1];
else
nextAngle = m_angles_of_loudspeakers_double[0];
prevPortion = (curAngle - prevAngle);
nextPortion = (nextAngle - curAngle);
if (nextPortion < 0.)
nextPortion += CICM_2PI;
if (prevPortion < 0.)
prevPortion += CICM_2PI;
m_loudspeakers_angles_width[i] = (prevPortion + nextPortion)*0.5;
m_loudspeakers_angles_mapped[i] = (curAngle - prevPortion*0.5) + m_loudspeakers_angles_width[i]*0.5;
}
}
AmbisonicWider::AmbisonicWider(long anOrder, long aVectorSize) : Ambisonic(anOrder, aVectorSize)
{
m_number_of_inputs = m_number_of_harmonics + 1;
m_wider_matrix = new cicm_vector_double[m_number_of_harmonics];
for(int i = 0; i < m_number_of_harmonics; i++)
{
cicm_malloc_vec_d(m_wider_matrix[i], NUMBEROFLINEARPOINTS);
}
cicm_malloc_vec_f(m_harmonics_vector_float, m_number_of_harmonics);
cicm_malloc_vec_d(m_harmonics_vector_double, m_number_of_harmonics);
m_index_vector = NULL;
m_vector_float = NULL;
m_vector_double = NULL;
computeWidenVector();
setWidenValue(1.);
}
AmbisonicsDecoder::AmbisonicsDecoder(long anOrder, long aNumberOfLoudspeakers, long aVectorSize) : Ambisonic(anOrder, aVectorSize)
{
cicm_malloc_vec_f(m_vector_float_input, m_number_of_harmonics);
cicm_malloc_vec_d(m_vector_double_input, m_number_of_harmonics);
m_decoder_matrix_float = NULL;
m_decoder_matrix_double = NULL;
m_vector_float_output = NULL;
m_vector_double_output = NULL;
m_number_of_loudspeakers = 0;
setNumberOfLoudspeakers(aNumberOfLoudspeakers);
}
void AmbisonicWider::setVectorSize(long aVectorSize)
{
Ambisonic::setVectorSize(aVectorSize);
if(m_index_vector)
free(m_index_vector);
if(m_vector_double)
cicm_free(m_vector_double);
if(m_vector_float)
cicm_free(m_vector_float);
m_index_vector = new int[m_vector_size];
cicm_malloc_vec_f(m_vector_float, m_vector_size);
cicm_malloc_vec_d(m_vector_double, m_vector_size);
}
void AmbisonicsDecoder::setNumberOfLoudspeakers(long aNumberOfLoudspeakers)
{
m_number_of_outputs = Tools::clip_min(aNumberOfLoudspeakers, m_number_of_harmonics);
if(m_number_of_loudspeakers != m_number_of_outputs)
{
if(m_decoder_matrix_float)
cicm_free(m_decoder_matrix_float);
if(m_decoder_matrix_double)
cicm_free(m_decoder_matrix_double);
if(m_vector_float_output)
cicm_free(m_vector_float_output);
if(m_vector_double_output)
cicm_free(m_vector_double_output);
m_number_of_loudspeakers = m_number_of_outputs;
cicm_malloc_mat_f(m_decoder_matrix_float, m_number_of_outputs, m_number_of_harmonics);
cicm_malloc_mat_d(m_decoder_matrix_double, m_number_of_outputs, m_number_of_harmonics);
cicm_malloc_vec_f(m_vector_float_output, m_number_of_outputs);
cicm_malloc_vec_d(m_vector_double_output, m_number_of_outputs);
computeMatrix();
}
}
