[NTLUG:Discuss] Basic script question

[Val W Harris]

Bobby,


You didn;t say what distro you are using, but the CentOS 7 man page for sox says that it accepts multiple input files.  Using a for loop to call sox multiple times is overwriting the output of the previous call to sox.  Try 


sox *.wav  output_file_name

I hope this works for you.  Enjoy your adventure!

--
Val Harris            valwharris at verizon.net




-----Original Message-----
From: Bobby Wrenn <bobby at wrennest.com>
To: NTLUG Discussion List <discuss at ntlug.org>
Sent: Wed, Aug 10, 2016 8:37 am
Subject: [NTLUG:Discuss] Basic script question

Wondering if the list is still active. My first send of this post has 
not appeared in my email.

I need to set up why I am asking for help on a short notice.

I am making a trip to the jungle of Papua New Guinea to make voice 
recordings of people reading scripture in their native language. I will 
be recording the whole book of Genesis with speakers for each character 
in the book. I may do other books as well. In order to work with other 
translation groups the files must be in a very specific format with a 
predetermined file name sequence. After all the recordings are done I 
need to retain the original chunks and assemble the chunks into 
chapters. I can determine the start and stop filename for each chapter. 
The files will be in a consistent WAV format. I expect to use sox to 
join the WAV files for each speaker into a file for each chapter. I have 
been planning this trip for some time. But just received this new 
requirement to join the files today. I get on a plane tomorrow and will 
have an Internet connection in country for about two days before I head 
into the bush with solar panels and a laptop.

I need help with a basic script to join the files given a start and stop 
filename and an explicit output file name as parameters. Input file 
names look like this "P1MSYPBT_01973.wav, P1MSYPBT_01974.wav, ...". The 
output file will look like this "P1MSYPBT_001_GEN_01.wav, 
P1MSYPBT_001_GEN_02.wav, ...".

I tried putting the files for a chapter in a separate directory and 
running [for i in *.wav;do sox "$i" P1MSYPBT_001_GEN_01.wav;done]. But 
it either got only the first file or left out the last file. It was not 
consistent.

Any help greatly appreciated.


-- 
StG
Bobby Wrenn
Beyond Baptism


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