Sox combine multiple files

Volumes are applied to the input files in order. If None, input files will be combined at their original volumes. Returns status : bool True on success. This is primarily useful when dealing with audio files without a file extension. Overwrites any previously set input file arguments.

If this function is not explicity called the input format is inferred from the file extension or the file's header. I will really appreciate any help. Improve this question.

Yngwie Pompas Yngwie Pompas 71 1 1 gold badge 1 1 silver badge 2 2 bronze badges. Add a comment. Active Oldest Votes. You can do it with one invocation of sox like this: sox -m in1. Improve this answer. Thor Thor 41k 10 10 gold badges silver badges bronze badges. I tried to mix 5 mp3's into 1 wav and I hear only 3 audios. Any ideas? Viewed 16k times. I have about 20 audio files. Improve this question. Add a comment. Active Oldest Votes. You need to insert a silent track between each track as you specify them so you end up with something like: sox track1.

Improve this answer. Sry friend seems same solution in same time, lol, same stolen — Maythux. Generate 2 seconds of stereo silence sox -n -r -c 2 silence. Community Bot 1. There are use cases in which you don't need to store the converted data, for instance, when you're sending the output directly to your speakers for playback. Before doing any conversion, however, it's usually a good idea to determine exactly what you're dealing with in the first place.

To gather information about an audio file, use the soxi command. This is a symlink to sox --info. This output gives you a good idea of what codec the audio file is encoded in, the file length, file size, sample rate, and the number of channels. Some of these you might think you already know, but I never trust assumptions when media is brought to me by a client. Verify media attributes with soxi.

In this example, the audio of a game show countdown has been delivered as an MP3 file. While nearly all editing applications accept compressed audio, none of them actually edit the compressed data. Conversion is happening somewhere, whether it's a secret background task or a prompt for you to save a copy. I generally prefer to do the conversion myself, in advance.

This way, I can control what format I'm using. I can do lots of media in batches overnight instead of wasting valuable production time waiting for an editing application to churn through them on demand. The sox command is meant for converting audio files. There are a few stages in the sox pipeline:. In command syntax, the effects step is, confusingly, written last.

That means the pipeline is composed this way:. The simplest conversion command involves only an input file and an output file. The effects chain is specified at the end of a command. It can alter audio prior to sending the data to its final destination. For instance, sometimes audio that's too loud can cause problems during conversion:.