Cannot calculate colatitude_recon

[QHenry1990]

error info:
self.hull = sp.ConvexHull(self.cartesian.T)

            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

File "_qhull.pyx", line 2431, in scipy.spatial._qhull.ConvexHull.init

File "_qhull.pyx", line 353, in scipy.spatial._qhull._Qhull.init

scipy.spatial._qhull.QhullError: QH6421 qhull internal error (qh_maxsimplex): qh.MAXwidth required for qh_maxsimplex. Used to estimate determinate

While executing: | qhull i Qt

Options selected for Qhull 2019.1.r 2019/06/21:

run-id 332354054 incidence Qtriangulate _pre-merge _zero-centrum

_max-width 0 Error-roundoff 0 _one-merge 0 _near-inside 0

Visible-distance 0 U-max-coplanar 0 Width-outside 0 _wide-facet 0

_maxoutside 0

A Qhull internal error has occurred. Please send the input and output to

qhull_bug@qhull.org. If you can duplicate the error with logging ('T4z'), please

include the log file.

python code:

import argparse

import numpy as np

import pyroomacoustics as pra

methods = ["MUSIC", "FRIDA", "WAVES", "TOPS", "CSSM", "SRP", "NormMUSIC"]

if name == "main":
parser = argparse.ArgumentParser(
description="Estimates the direction of arrival of a sound source."
)
parser.add_argument(
"--method",
"-m",
choices=methods,
default=methods[0],
help="DOA method to use",
)
args = parser.parse_args()

# we use a white noise signal for the source
nfft = 256
fs = 16000
x = np.random.randn((nfft // 2 + 1) * nfft)

# create anechoic room
room = pra.AnechoicRoom(fs=fs)

# place the source at a 90 degree angle and 5 meters distance from origin
azimuth_true = np.pi / 2
colatitude_true = 30/180*np.pi
room.add_source([5 * np.cos(azimuth_true)*np.sin(colatitude_true), 5 * np.sin(azimuth_true)*np.sin(colatitude_true), np.cos(colatitude_true)], signal=x)

# place the microphone array
mic_locs = np.c_[
    [0.1, 0.1, 0],
    [-0.1, 0.1, 0],
    [-0.1, -0.1, 0],
    [0.1, -0.1, 0],
]
room.add_microphone_array(mic_locs)

# run the simulation
room.simulate()

# create frequency-domain input for DOA algorithms
X = pra.transform.stft.analysis(
    room.mic_array.signals.T, nfft, nfft // 2, win=np.hanning(nfft)
)
X = np.swapaxes(X, 2, 0)

# perform DOA estimation
doa = pra.doa.algorithms[args.method](mic_locs, fs, nfft, num_src=1, max_four=4, dim=3)
doa.locate_sources(X)
# for i in dir(doa):
#     print(i)

# evaluate result
print("Source is estimated at:", doa.azimuth_recon/np.pi*180)
print(doa.colatitude_recon)
print("Real source is at:", azimuth_true/np.pi*180)
print("Error:", pra.doa.circ_dist(azimuth_true, doa.azimuth_recon))

[fakufaku]

Thanks for finding this bug. I am writing a fix.

[QHenry1990]

thank you very much