sox

My question is similar to a previous question about "get-mean-amplitude-of-wav-from-sox": Get Mean amplitude(only) of .wav from sox I would like to be able to use the stats sox to do batch measurements of 1,000's of .wav files in a directory, and store the results in a data frame or some similar structure I can save as a csv text file. For one sound file, the code would be: ./sox SampleSound.wav -n stat Resulting in the following output: Samples read: 72000000 Length (seconds): 3600.000000 Scaled by: 2147483647.0 Maximum amplitude: 0.778809 Minimum amplitude: -1.000000 Midline amplitude: -0

OK, I have done some creative searches and am kind of hitting a road block. I am trying to use the linux program "sox." I am trying to call it from my PHP script. The script DOES work if I use the command line. However, when I use PHP exec, it does not work. Example: sox file1.mp3 file2.mp3 tempfile.mp3 -V3 ("V3" specifies a verbose output) When executing in the command line as "User X" or as root, I am able to create the new file. However, when I execute the command as: <?php exec('sox file1.mp3 file2.mp3 tempfile.mp3 -V3', $output); foreach($output as $line){ print $line; } It does not

I am able to join and crossfade two audio files using SoX, like so: sox file1.wav file2.wav outfile.wav splice -q `soxi -D file1.wav`,0.5 where the soxi substitution is fetching the duration of file1 and 0.5 is the length of the cross-fade. I am now trying to extend this to an arbitrary number of files, in order to string them together with short crossfades in between. There would seem to be 2 approaches: piping and scripting. Sox has a -p option telling it to treat it's output as piped (instead of writing a file). But, with many input and arguments per command, it's not clear how that output

How to generate file including spectrum of frequencies of wav/riff sound file? I would like to use linux command line. I know the cool sox function to generate png spectrograms sox sound.wav -n spectrogram But I do not need visual representation of the spectrum of frequencies. I just want to get spectrum of frequencies in data file so I can work on them. I believe that there must be an option using sox. Sox need to generate that data before plotting it. How to get this? Not sure, maybe the second solution is exporting wav file into the dat file. Each sample from dat file is a measure of the

I want to resample a bunch of wav files that I got on a folder. My script is this: for f in *.wav; do sox “$f” -r 48000 “${f%%%.wav}.wav”; done The console give me this error: "sox FAIL formats: can't open input file `“90.wav”': No such file or directory" and so on with the 300 files that are placed on that folder. How can I batch processing right this files? Why is it giving me this error? Thanks a lot! Solution: for i in *wav; do echo $i; sox $i -r 48000 ${i%%.wav}r.wav; done Summary: It is the quote symbols The problem is with the double-quotes: for f in *.wav; do sox “$f” -r 48000 “${f%%%

The task is to remove silence by threshold from the start and end of audio recording. I use this sox port to iOS. https://github.com/shieldlock/SoX-iPhone-Lib/ I've found that command line sox tool makes my task by following command: sox in.wav out.wav silence 1 0.1 1% reverse silence 1 0.1 1% reverse (taken from here: http://digitalcardboard.com/blog/2009/08/25/the-sox-of-silence/ ) but I cannot to translate it in iOS lib format like this: sox_create_effect(sox_find_effect("silence")); args[0] = "2000", assert(sox_effect_options(e, 1, args) == SOX_SUCCESS); assert(sox_add_effect(chain, e, &in