how to concatenate 2 or more sound files?

how to concatenate 2 or more sound files?

[Tyler Spivey]

how do i concatenate two or more sound files together into one sound file?
cat * >somefile.wav wouldn't work, because of the wave headers.
the files are all in the same format.
i found a way of doing it, but it is rather annoying.
here's my way, if anyone wants it.
head -c 40 something.wav >file.wav
this will get the wave header and put it in file.wav
wc -c something.wav
getst eh size
bc
size-40
gets the size, minus 40.
tail -c size something.wav >>file.wav
gets the wave data. size is the size you got with bc.
wc -c someother.wav
bc
size-40
same as above.
tail -c size someother.wav >>file.wav
same as above. you have file.wav
with the two files concatenated. now:
sox file.wav file2.wav
will convert it into a proper wave file.
i wouldn't recommend this, since it is slow, but it works when you need it,
if the files are the same format.
or at least it should...

Re: how to concatenate 2 or more sound files?

[Octavian Rasnita]

If you have Windows also, you can type the following command:

type sound1.wav sound2.wav > sound3.wav

This will put the sound1.wav and sound2.wav in the file sound3.wav.

Windows will delete the headers that are not necessary and the file will
play.
You can do the same with mp3, etc.

Teddy,
orasnita@home.ro

----- Original Message -----
From: "Tyler Spivey" <tspivey8@telus.net>
To: <speakup@braille.uwo.ca>
Sent: Saturday, June 15, 2002 3:07 AM
Subject: how to concatenate 2 or more sound files?


> how do i concatenate two or more sound files together into one sound file?
> cat * >somefile.wav wouldn't work, because of the wave headers.
> the files are all in the same format.
> i found a way of doing it, but it is rather annoying.
> here's my way, if anyone wants it.
> head -c 40 something.wav >file.wav
> this will get the wave header and put it in file.wav
> wc -c something.wav
> getst eh size
> bc
> size-40
> gets the size, minus 40.
> tail -c size something.wav >>file.wav
> gets the wave data. size is the size you got with bc.
> wc -c someother.wav
> bc
> size-40
> same as above.
> tail -c size someother.wav >>file.wav
> same as above. you have file.wav
> with the two files concatenated. now:
> sox file.wav file2.wav
> will convert it into a proper wave file.
> i wouldn't recommend this, since it is slow, but it works when you need
it,
> if the files are the same format.
> or at least it should...
>
> _______________________________________________
> Speakup mailing list
> Speakup@braille.uwo.ca
> http://speech.braille.uwo.ca/mailman/listinfo/speakup
>

Re: how to concatenate 2 or more sound files?

[Charles Hallenbeck]

Tyler,

Use sox to convert each of the files to raw format, use cat to
concatenate them, then use sox to convert the resulting combined
raw file back to wav. For this last step you need to know the
parameters of the original wav files.

HTH - Chuck

-- 
Visit me at http://www.valstar.net/~hallenbeck
The Moon is Waxing Crescent (22% of Full)

Re: how to concatenate 2 or more sound files?

[Adam Myrow]

I'd write a shell script to take the list of files and the result and doo 
all that.  Then call it something like "catwav," so you could do something 
like "catwav file1.wav file2.wav file3.wav > file4.wav."