Description
Hello everyone, I tried to follow this to get raw audio data and successfully save it to local file audio.pcm
However, when I open in Audacity (signed 16 bit, little endian, mono, 32000Hz), I cannot hear my voice because it full with noise. I cannot apply noise reduction too, because the noise only contains when I speak. The waveform looks like this,
I tried to apply some effect (amplify, low pass filter, telephone eq, etc) and after that I can barely hear my voice. But it is still unclear because the noise is still dominant.
I want to ask, is this noise expected behavior? How can I remove this noise? Is there any post processing I need to do after I get the raw data?
Thank you in advance,
Which Windows Meeting SDK version?
zoom-sdk-windows-5.13.5.12103
Device (please complete the following information):
Device: Asus
OS: Windows 10
Additional context
I’m using my Macbook to start meeting with normal Zoom application and talking with built in microphone (no external microphone).
I’m using my Windows laptop to start the SDK demo and joins the meeting with mute mic setting. I can also hear the voice clearly in the meeting.
Here is the link to the repo containing my code to save PCM file
In the raw_data_manager.startRawData I also start MyManager.start and open audio.pcm file.
When raw_data_manager.onMixedAudioRawDataReceived called, I send it to MyManager.send and write it to audio.pcm.
Thanks for your suggestion.
I already tried to delete the file before running.
But when I open the file, my ofstream variable is always null and fails to create the file.
I tried to create the file manually and my ofstream variable is not null.
But when I write the file, it always overrides it instead of appending it.
I also tried to create a small main program containing the exact same code.