问题
I'd like to compare the audio output from a PC game to known audio files (*.mp3 for example).
If the audio stream contains the recorded audio, I'd like to measure the amplitude of the matching audio in the left/right stereo channels. The goal is to determine the direction and distance of the sound (footsteps/gunshots).
It would also be a bonus to amplify the matching audio without affecting the rest of the audio stream.
Are there any open-source projects that would be a good reference? Any language (especially C++) would be great.
- Similar question using external hardware with a 3DS: https://electronics.stackexchange.com/questions/182370/arduino-recognizing-pre-recorded-sound-clips-from-an-audio-stream
- Phone dial pad tone detection in C++: https://sourceforge.net/projects/dtmf/?source=navbar
回答1:
Broadcast Audience Research Council (BARC) encodes TV channel audio with unique ID of the channel to identify the channel and measure the viewing time.
For example you can encode a tone with unique frequency for each audio. At the receiver multiple tone detectors using IC556 identifies the embedded tone. An Arduino can then send the identity to your program.
来源：https://stackoverflow.com/questions/51224523/detect-matching-sounds-in-audio-stream