Date: Sun, 2 Mar 2003 17:10:51 -0600 From: David Kelly <dkelly@HiWAAY.net> To: multimedia@FreeBSD.ORG Subject: Re: concatenating audio files Message-ID: <200303021710.51995.dkelly@HiWAAY.net> In-Reply-To: <20030302191026.GA552@gicco.homeip.net> References: <20030302191026.GA552@gicco.homeip.net>
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On Sunday 02 March 2003 01:10 pm, Hanspeter Roth wrote: > Hello, > > is there a tool that can concatenate .wav files in batch mode > (without GUI)? As others have suggested, sox is a good starting point. Can use sox to convert to raw data, then cat the raw data files back into sox to reformat at .wav. Would require some scripting. When I have done it, was to add a pause at the begining. Simply insert nulls. The .wav format allows multiple segments within a file, each with its own header. The headers describe sample rate, word size, encoding, number of channels, all the things needed to play the data. If the files you wish to join are at different sample rates or encodings then one will have to be resampled to the other's specifications. Sox can do this. But if you study the header formats and how to put multiple segments in the same file you could create a .wav file which automatically switches as needed. To do so, you will have to write some code. But all you are doing is moving data from two files into one with no user interface so it shouldn't be very hard at all. -- David Kelly N4HHE, dkelly@hiwaay.net ===================================================================== The human mind ordinarily operates at only ten percent of its capacity -- the rest is overhead for the operating system. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-multimedia" in the body of the message
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