The microsoft documentation is very furnished, but even if the WASAPI provides a lot of ways to capture and stream from audio endpoint devices, I'm not sure it is possible to get an unaltered volume, as it will always capture what's exactly coming out of the speakers. The idea is to capture the output streams before they are modified by hardware volume modifications, and make a copy of them routed to my application without changing the output routing and behaviour.I must be able to choose between the different endpoint devices, for exemple if I have an external soundcard that is plugged, my audio application should be able to intercept and copy the stream that is going to that external soundcard, or do the same for the stream that is going to the built-in speakers.This stream must have an unaltered volume: always 1.0 (no matter if the hardware volume is changed or muted).However, duration is not a required field in RSS feeds, so I must compute this property separately, given the audio file endpoint, if the property doesnt exist.
And I need to build a Windows solution that would capture the audio stream that is going to an audio endpoint device to use it as an input of my audio application. For context, Im building a podcasting app that fetches podcasts from various RSS feeds to be played in the app I want to store in DB and show each audios duration to my users. I have an audio application which is Standalone and coded with framework JUCE in C++. At the moment I'm still confuse which way to go to achieve what I need.
#What is audio endpoint builder drivers#
I'm right now reading the microsoft documentation about drivers and core audio apis.
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