Thank you guys, much help is appreciated. peek () was created for a different purpose - its there to let your program process two characters at a time - essentially emulating ungetc () functionality from the portion of the library based on the C standard library. Can I do this in C++ or java, perhaps? Remember, I need to output the exact time in milli- or nanoseconds. Python script utilising Librosa to log the timings of audio peaks in an MP3 file - audio-peak-detection/peaks-detection. But I have also read about a function called peek () which is also used for such purposes. I want to know if there is a better solution out there. And I also don't know if that would work with a pickup microphone or does it just work with a sound sensor (for Arduino.) like it is shown here. The second option was to do something similar to what they use for clap light switches, but I have no idea how I would extract the exact time from that. There is a delay of 50-150 milliseconds when a new file starts recording. The first one was to set up a shell script in linux to record audio increments of 5 seconds via the nohup function and then analyze them in matlab, but the problem here is that the endings and the beginnings of the recorded files are not exactly 5 seconds apart. A microphone isn't too bad to detect through software, just listen on the port and if there is. They don't have a method for detecting if the hardware is attached or not. They function the same if something is connected to them as when something isn't. However, detect multiple peaks in a longer window and neglect the signal if there are too many peaks (probably more that 3 is sufficient, judging from the data presented.) Check the autocorrelation of the signal. The audio jacks are simple connectors that either send analog signals out, or receive them in. I have been looking at two possible solutions. You already mentioned that you experimented with one, which certainly can be used and improved. I need to detect peaks in a live audio from a pickup microphone and output the exact time to milliseconds or preferably nanoseconds of the peak in a. it writes a textual representation of the sample data to the file sound.dat. Man sox and man soxformat should give more info.I'm a new programmer and I'm looking for some help. Invoked like this: sox sound.wav sound.dat.

The 0.1Hz to 10Hz noise is just 1.5V P-P and 1kHz noise is guaranteed to be less than 12nV/ Hz.

Ive been researching for the passed few days, how i can compare the captured sound effect, to a database of about 50 i have. The LTC6244 is a dual high speed, unity-gain stable CMOS op amp that features a 50MHz gain bandwidth, 40V/s slew rate, 1pA of input bias current, low input capacitance and rail-to-rail output swing. Depending on the options you can get a file with the time since the beginning in the first column and a normalized sample volume in second column, e.g.: Sample Rate 44100Ī bit of awk could reveal the peeks with a timestamp: $ awk '$2 > 0.6 ' < sound.dat Im trying to detect very small (1-3 seconds in length) sound effects, Currently im using FMod to capture the sounds (which play on another program) using the loopback technique. Any idea how I can give it a start Any help would be appreciated. It writes a textual representation of the sample data to the file sound.dat. The task I have to do is that given an audio file, (which can be empty or it can have noise but no speech), I have to detect whether it contains any speech. Invoked like this: sox sound.wav sound.dat

Audio file peek detection