Record and play continuously
pablodz opened this issue · 5 comments
pablodz commented
Hello there,
what if I want and play continously? I mean, creating the object in the backend and just adding the data as is received: not creating the microphone object, capture the data and delete the microphone object.
Similar errors:
#94
pablodz commented
Also after a continous record appears the error below
Assertion 's' failed at pulse/stream.c:1411, function pa_stream_connect_record(). Aborting.
Aborted
bastibe commented
Can you try if the issue persists if you install the latest development version from here (github) instead of pypi?
pablodz commented
For the problem
Assertion 's' failed at pulse/stream.c:1411, function pa_stream_connect_record(). Aborting.
Aborted
via pypi SoundCard==0.4.0 was the problem, now I have installed by source
git clone https://github.com/bastibe/SoundCard
cd SoundCard
sudo python3 setup.py install
and works without the initial error. However in the system appears that a mic is being created, capturing data and finally deleted (video). So, as I mention at the beginning, I think will be better if the mic is open and then we just capture the data as is received. Is this possible with soundcard?
simplescreenrecorder-2021-03-10_13.43.32.mp4
Thanks in advance.
pablodz commented
Well, after a while and checking test_soundcard.py here is the solution, works well: this can be loaded in a python thread and we can process the array instead of adding latency saving files
File
# Taken from https://github.com/bastibe/SoundCard
import soundcard as sc
import soundfile as sf
import numpy
import time
# get the current default microphone on your system:
default_mic = sc.default_microphone()
# alternatively, get a `Recorder` and `Player` object
# and play or record continuously:
record_object=default_mic.recorder(44100, channels=1, blocksize=256)
print(record_object)
seconds=0.5
numframes=int(44100*seconds)
max_iterations=100
expected_time_array=numpy.arange(seconds,(max_iterations+1)*seconds,seconds)
my_audio_streaming=[]
with record_object as r:
start_time=time.time()
for number in range(max_iterations):
data=r.record(numframes)
my_audio_streaming.append(data)
# sf.write('temporal/pysoundcard_record_continously_{}.wav'.format(number), data, 44100, 'PCM_32') # add more seconds, not recommended
now=time.time()
print("[{}] \tReal: {} \tExpected: {} \tNumframes:{}".format(number, round(now-start_time,4),expected_time_array[number],numframes))
Output:
<soundcard.pulseaudio._Recorder object at 0x7ff71b24ca50>
[0] Real: 0.4972 Expected: 0.5 Numframes:22050
[1] Real: 0.9985 Expected: 1.0 Numframes:22050
[2] Real: 1.4986 Expected: 1.5 Numframes:22050
[3] Real: 1.9974 Expected: 2.0 Numframes:22050
[4] Real: 2.4977 Expected: 2.5 Numframes:22050
[5] Real: 2.9989 Expected: 3.0 Numframes:22050
[6] Real: 3.497 Expected: 3.5 Numframes:22050
[7] Real: 3.9976 Expected: 4.0 Numframes:22050
[8] Real: 4.4993 Expected: 4.5 Numframes:22050
[9] Real: 4.9978 Expected: 5.0 Numframes:22050
[10] Real: 5.4982 Expected: 5.5 Numframes:22050
[11] Real: 5.998 Expected: 6.0 Numframes:22050
[12] Real: 6.4974 Expected: 6.5 Numframes:22050
[13] Real: 6.998 Expected: 7.0 Numframes:22050
[14] Real: 7.4974 Expected: 7.5 Numframes:22050
[15] Real: 7.9981 Expected: 8.0 Numframes:22050
[16] Real: 8.4992 Expected: 8.5 Numframes:22050
[17] Real: 8.9992 Expected: 9.0 Numframes:22050
[18] Real: 9.4984 Expected: 9.5 Numframes:22050
[19] Real: 9.9975 Expected: 10.0 Numframes:22050
[20] Real: 10.4987 Expected: 10.5 Numframes:22050
[21] Real: 10.9992 Expected: 11.0 Numframes:22050
[22] Real: 11.5002 Expected: 11.5 Numframes:22050
[23] Real: 11.9999 Expected: 12.0 Numframes:22050
[24] Real: 12.4991 Expected: 12.5 Numframes:22050
[25] Real: 12.9979 Expected: 13.0 Numframes:22050
[26] Real: 13.499 Expected: 13.5 Numframes:22050
[27] Real: 13.9978 Expected: 14.0 Numframes:22050
[28] Real: 14.4973 Expected: 14.5 Numframes:22050
[29] Real: 14.9993 Expected: 15.0 Numframes:22050
[30] Real: 15.4986 Expected: 15.5 Numframes:22050
[31] Real: 15.9981 Expected: 16.0 Numframes:22050
[32] Real: 16.4993 Expected: 16.5 Numframes:22050
[33] Real: 16.9978 Expected: 17.0 Numframes:22050
[34] Real: 17.4996 Expected: 17.5 Numframes:22050
[35] Real: 17.9984 Expected: 18.0 Numframes:22050
[36] Real: 18.4988 Expected: 18.5 Numframes:22050
[37] Real: 18.9998 Expected: 19.0 Numframes:22050
[38] Real: 19.4985 Expected: 19.5 Numframes:22050
[39] Real: 19.9975 Expected: 20.0 Numframes:22050
[40] Real: 20.4979 Expected: 20.5 Numframes:22050
[41] Real: 20.9976 Expected: 21.0 Numframes:22050
[42] Real: 21.4987 Expected: 21.5 Numframes:22050
[43] Real: 22.0 Expected: 22.0 Numframes:22050
[44] Real: 22.5047 Expected: 22.5 Numframes:22050
[45] Real: 23.0025 Expected: 23.0 Numframes:22050
[46] Real: 23.5039 Expected: 23.5 Numframes:22050
[47] Real: 24.005 Expected: 24.0 Numframes:22050
[48] Real: 24.5048 Expected: 24.5 Numframes:22050
[49] Real: 25.0032 Expected: 25.0 Numframes:22050
[50] Real: 25.5042 Expected: 25.5 Numframes:22050
[51] Real: 26.0036 Expected: 26.0 Numframes:22050
[52] Real: 26.5039 Expected: 26.5 Numframes:22050
[53] Real: 27.0044 Expected: 27.0 Numframes:22050
[54] Real: 27.5028 Expected: 27.5 Numframes:22050
[55] Real: 28.0037 Expected: 28.0 Numframes:22050
[56] Real: 28.5021 Expected: 28.5 Numframes:22050
[57] Real: 29.0093 Expected: 29.0 Numframes:22050
[58] Real: 29.4998 Expected: 29.5 Numframes:22050
[59] Real: 30.0018 Expected: 30.0 Numframes:22050
[60] Real: 30.5007 Expected: 30.5 Numframes:22050
[61] Real: 31.0036 Expected: 31.0 Numframes:22050
[62] Real: 31.5032 Expected: 31.5 Numframes:22050
[63] Real: 32.0056 Expected: 32.0 Numframes:22050
[64] Real: 32.5036 Expected: 32.5 Numframes:22050
[65] Real: 33.0001 Expected: 33.0 Numframes:22050
[66] Real: 33.5085 Expected: 33.5 Numframes:22050
[67] Real: 34.0039 Expected: 34.0 Numframes:22050
[68] Real: 34.5017 Expected: 34.5 Numframes:22050
[69] Real: 35.0092 Expected: 35.0 Numframes:22050
[70] Real: 35.5033 Expected: 35.5 Numframes:22050
[71] Real: 36.0046 Expected: 36.0 Numframes:22050
[72] Real: 36.5116 Expected: 36.5 Numframes:22050
[73] Real: 37.0062 Expected: 37.0 Numframes:22050
[74] Real: 37.5051 Expected: 37.5 Numframes:22050
[75] Real: 38.0013 Expected: 38.0 Numframes:22050
[76] Real: 38.5004 Expected: 38.5 Numframes:22050
[77] Real: 39.0009 Expected: 39.0 Numframes:22050
[78] Real: 39.501 Expected: 39.5 Numframes:22050
[79] Real: 40.0009 Expected: 40.0 Numframes:22050
[80] Real: 40.4996 Expected: 40.5 Numframes:22050
[81] Real: 41.0078 Expected: 41.0 Numframes:22050
[82] Real: 41.4988 Expected: 41.5 Numframes:22050
[83] Real: 41.9999 Expected: 42.0 Numframes:22050
[84] Real: 42.5011 Expected: 42.5 Numframes:22050
[85] Real: 43.0009 Expected: 43.0 Numframes:22050
[86] Real: 43.4994 Expected: 43.5 Numframes:22050
[87] Real: 44.0091 Expected: 44.0 Numframes:22050
[88] Real: 44.4984 Expected: 44.5 Numframes:22050
[89] Real: 45.0095 Expected: 45.0 Numframes:22050
[90] Real: 45.4999 Expected: 45.5 Numframes:22050
[91] Real: 46.0007 Expected: 46.0 Numframes:22050
[92] Real: 46.4993 Expected: 46.5 Numframes:22050
[93] Real: 47.009 Expected: 47.0 Numframes:22050
[94] Real: 47.5094 Expected: 47.5 Numframes:22050
[95] Real: 48.0056 Expected: 48.0 Numframes:22050
[96] Real: 48.5014 Expected: 48.5 Numframes:22050
[97] Real: 49.0092 Expected: 49.0 Numframes:22050
[98] Real: 49.509 Expected: 49.5 Numframes:22050
[99] Real: 49.9976 Expected: 50.0 Numframes:22050
bastibe commented
However in the system appears that a mic is being created, capturing data and finally deleted (video)
I think that is just how pulseaudio works when capturing an output. But I might be wrong.
Anyway, I'm glad you found a solution to your problem. I'll try to release a new version of SoundCard, soon.