Please tell me what programs can be used to record multi-channel audio via ASIO? What programming interfaces (API) can be used for this in Windows and Linux, respectively? And what drivers should be installed? Thanks.
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Please tell me what programs can be used to record multi-channel audio via ASIO? What programming interfaces (API) can be used for this in Windows and Linux, respectively? And what drivers should be installed? Thanks.
Hello,
We're not supposed to directly promote 3rd party tools directly in our literature, but you'll probably notice some images/figures that look like they come from the freeware "Audacity" .... because they do :).
The drivers will install automatically with the EVM software and when you plug the USB cord into your computer, the motherboard will enumerate as A "TI USB Audio" device, which looks like a standard 2-way audio sound-card. Once you have your recording program of choice opened, select the TI USB Audio sound source and begin recording! I think we usually use the WASAPI setting, but I believe ASIO is also supported.
Hello! Yes, that was the question: how to record audio from the card simultaneously with 4 channels, for example? You reported that the standard device driver is dual-channel. Do I need a non-standard driver or something else? Where to get it, where is it written about it? I would also be grateful if you answer the question, including in relation to Linux. Thanks
For Windows, Python works well with the PyAudio module. The driver is standard. Apparently, Windows WASAPI is used.
4-channeles example:
import pyaudio
import wave
p = pyaudio.PyAudio()
for i in range(p.get_device_count()):
print(i, p.get_device_info_by_index(i)['name'])
CHUNK = 1024
FORMAT = pyaudio.paInt16
CHANNELS = 4
RATE = 96000
RECORD_SECONDS = 0.12
WAVE_OUTPUT_FILENAME = "output96_4.wav"
p = pyaudio.PyAudio()
stream = p.open(format=FORMAT,
channels=CHANNELS,
rate=RATE,
input=True,
frames_per_buffer=CHUNK)
print("* recording")
frames = []
for i in range(0, int(RATE / CHUNK * RECORD_SECONDS)):
data = stream.read(CHUNK)
frames.append(data)
print("* done recording")
stream.stop_stream()
stream.close()
p.terminate()
wf = wave.open(WAVE_OUTPUT_FILENAME, 'wb')
wf.setnchannels(CHANNELS)
wf.setsampwidth(p.get_sample_size(FORMAT))
wf.setframerate(RATE)
wf.writeframes(b''.join(frames))
wf.close()