sox

I'm using SoX to trim a set of wav files into 16kHz, 16bit, mono channel wav files (which will be subsets of one of the initial wav files). Most of the source wav files are already set to this specification, however, I just found out that some of them have different sample rates. Since it's going to be automated in Java using a ProcessBuilder, I figured I could use the following command: sox <source_wav> -b 16 <dest_wav> channels 1 rate 16000 trim <startTime> =<endTime> and it'll only change the sample rate if it isn't 16000 Hz. It does what it's supposed to on files with the same

I compiled libmad for sox. When I try to read an mp3 I get this message: sox FAIL util: Unable to load MAD decoder library (libmad) function "mad_stream_buffer". Did I compile the project incorrectly? bulltorious Steps to using SOX to create MP3s: Download latest version of SOX and install. Download libmad-0.dll and libmp3lame-0.dll . The currently only known trustworthy source is ossbuild but this requires you to download a 1.5 GB archive. The selected two files are available here and here . Add libmad-0.dll and libmp3lame-0.dll to the folder where SOX was installed to. Use the command line

Using Sox, how do I shorten an audio file by 5 seconds, trimming from the end? For example, this is how to trim a file from the beginning: sox input output trim 5000 This is how to add 5 seconds of silence to the end: sox input output pad 0 5000 yonix The syntax is sox input output trim <start> <duration> e.g. sox input.wav output.wav trim 0 00:35 will output the first 35 seconds into output.wav . (you can know what the length is using sox input -n stat ) From the SoX documentation on the trim command: Cuts portions out of the audio. Any number of positions may be given; audio is not sent to

I have an audio file. I have a bunch of [start, end] time stamp segments. WHAT I WANT TO ACHIEVE: Say audio is 6:00 minutes long. Segments I have are : [[0.0,4.0], [8.0,12.0], [16.0,20.0], [24.0,28.0]] After I pass these two to sox + python , out put should be audio that is 6 minutes long, but has audio only in the times passed by the segments. i.e I want to pass the time stamps and original audio to SOX + python so that an audio with everything silenced out except for those portions corresponding to the passed segments is generated I couldn't achieve above but came somewhat close to the

i'm trying to execute a SOX command from java, but unfortunately its returning an error everytime. Every other SOX commands are working perfectly though!! Here is the code : class Simple { public static void main(String args[]) throws IOException, Exception { Process p; BufferedReader br; String co = "sox speech_16.wav -p pad 0 2.5 | sox - -m speech_16.wav speech_output.wav"; p = Runtime.getRuntime().exec(co); br = new BufferedReader(new InputStreamReader(p.getInputStream())); int returnCode = p.waitFor(); System.out.println("reurn code : "+returnCode); } } When I'm executing the same sox

I have MP3 files that sometimes have silence at the end. I would like to remove this silence automatically. From what I can tell, it is "perfect" silence (0 amplitude), not background noise. The length of the content and the silence varies. I found some other questions about cropping to the first 30 seconds or cropping to X and X+N seconds using ffmpeg . I would think I could use a similar approach, as long as I have a way to find when the silence starts. How would I do that programatically? For example, one possible solution would be to have a command that finds the beginning of the "silence"