Re: [PHP] Combining sound files
I may be replying to an outdated URL or even all out of order as I play catchup on the list... Your JS play function checks for precisely two possible browser appName values: Microsoft Internet Explorer Netscape Maybe Mozilla Firefox has Netscape in its appName, but I wouldn't expect that... I'm told I need a plugin still, so I guess maybe that part IS working... On Fri, March 2, 2007 12:37 pm, tedd wrote: At 5:28 PM -0600 2/27/07, Richard Lynch wrote: You may find it easier/faster to just locate a .wav splicer command line tool and run exec with it. Though perhaps not nearly as fun, depending on your definition of fun. Richard: Nah, it's easier to bit twiddle the sound files and I found an easy way to combine them. It's funny what a few bytes of data can do. :-) What's ya think of this -- does it work for you? http://sperling.com/examples/captcha/ Cheers, tedd -- --- http://sperling.com http://ancientstones.com http://earthstones.com -- Some people have a gift link here. Know what I want? I want you to buy a CD from some starving artist. http://cdbaby.com/browse/from/lynch Yeah, I get a buck. So? -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Combining sound files
At 5:28 PM -0600 2/27/07, Richard Lynch wrote: You may find it easier/faster to just locate a .wav splicer command line tool and run exec with it. Though perhaps not nearly as fun, depending on your definition of fun. Richard: Nah, it's easier to bit twiddle the sound files and I found an easy way to combine them. It's funny what a few bytes of data can do. :-) What's ya think of this -- does it work for you? http://sperling.com/examples/captcha/ Cheers, tedd -- --- http://sperling.com http://ancientstones.com http://earthstones.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Combining sound files
At 1:37 PM -0500 3/2/07, tedd wrote: At 5:28 PM -0600 2/27/07, Richard Lynch wrote: You may find it easier/faster to just locate a .wav splicer command line tool and run exec with it. Though perhaps not nearly as fun, depending on your definition of fun. Richard: Nah, it's easier to bit twiddle the sound files and I found an easy way to combine them. It's funny what a few bytes of data can do. :-) What's ya think of this -- does it work for you? http://sperling.com/examples/captcha/ Cheers, tedd Oops, it was just supposed to go to Richard. Sorry. tedd -- --- http://sperling.com http://ancientstones.com http://earthstones.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Combining sound files
At 5:28 PM -0600 2/27/07, Richard Lynch wrote: On Sun, February 25, 2007 9:22 am, tedd wrote: However, I can't do the same with .WAV files. Does anyone know a way to combine .WAV files similar to the way shown above? The first 256 bytes of a .WAV file contains magic numbers indicating the bit-size (16-bit, 8-bit, whatever) and sampling rate (44.1 kHz, 22.05 kHz, 96kHz, etc) and imaging (stereo, mono, and I think maybe others) as well as the total number of samples (I.e., file length). There are also some slots for things like copyright, comments etc, as I recall. You're going to have to find specs on that header info, read the first 256 bytes of each file, compute new numbers to put into the .wav header, and write out the new 256 bytes and then the remainders of the two files. If the two files are NOT both the same bit/sample rate, then you'd have some REAL fun trying to scale/re-sample the actual audio... :-) You may find it easier/faster to just locate a .wav splicer command line tool and run exec with it. Though perhaps not nearly as fun, depending on your definition of fun. I'm not sure I can or need to run exec, nor do I actually know how. I'll deal with that later in my life. For the moment, I can use a HEX Editor and inspect the first 256 bytes of a wav file and find out all the goodies therein, but do you know if I strip out the first 256 bytes can I then combine the files so they will work (providing the sample rates, frequencies, and such as the same)? Thanks for your help. tedd -- --- http://sperling.com http://ancientstones.com http://earthstones.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Combining sound files
On Wed, February 28, 2007 8:28 am, tedd wrote: For the moment, I can use a HEX Editor and inspect the first 256 bytes of a wav file and find out all the goodies therein, but do you know if I strip out the first 256 bytes can I then combine the files so they will work (providing the sample rates, frequencies, and such as the same)? Probably not exactly like that. One of the goodies is file length (actually, I think it's sample count, but same smell). So you are going to have to open both headers and plus up the numbers to get the right new header. I suspect most .wav readers are far less forgiving than .mp3 readers due to their relative format age. -- Some people have a gift link here. Know what I want? I want you to buy a CD from some starving artist. http://cdbaby.com/browse/from/lynch Yeah, I get a buck. So? -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Combining sound files
On Sun, February 25, 2007 9:22 am, tedd wrote: Hi gang: I can combine two mp3 sound files together by simply: // load first $file = a.mp3; $handle = fopen($file, rb); $size = filesize($file); $load = fread($handle, $size); fclose($handle); // load second $file = b.mp3; $handle = fopen($file, rb); $size = filesize($file); $load .= fread($handle, $size); fclose($handle); // save both as one audio file $filename = tmp/a.mp3; $file = fopen( $filename, wb ); fwrite( $file, $load); fclose( $file ); I am not certain that that creates a truly valid MP3 file, but it does seem to work in all the players I've ever tried. I do it all the time with ID3 tags on the fly from the DB and the actual MP3 data from a static file. Anybody know a good MP3 validator in command line Linux, off the top of their heads? My last attempt to Google didn't yeild anything, but that was a couple years ago... However, I can't do the same with .WAV files. Does anyone know a way to combine .WAV files similar to the way shown above? The first 256 bytes of a .WAV file contains magic numbers indicating the bit-size (16-bit, 8-bit, whatever) and sampling rate (44.1 kHz, 22.05 kHz, 96kHz, etc) and imaging (stereo, mono, and I think maybe others) as well as the total number of samples (I.e., file length). There are also some slots for things like copyright, comments etc, as I recall. You're going to have to find specs on that header info, read the first 256 bytes of each file, compute new numbers to put into the .wav header, and write out the new 256 bytes and then the remainders of the two files. If the two files are NOT both the same bit/sample rate, then you'd have some REAL fun trying to scale/re-sample the actual audio... :-) You may find it easier/faster to just locate a .wav splicer command line tool and run exec with it. Though perhaps not nearly as fun, depending on your definition of fun. -- Some people have a gift link here. Know what I want? I want you to buy a CD from some starving artist. http://cdbaby.com/browse/from/lynch Yeah, I get a buck. So? -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Combining sound files
However, I can't do the same with .WAV files. Does anyone know a way to
combine .WAV files similar to the way shown above?
Can you not convert the wav files to mp3's then combine them?
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Re: [PHP] Combining sound files
At 11:39 AM +0200 2/26/07, clive wrote: However, I can't do the same with .WAV files. Does anyone know a way to combine .WAV files similar to the way shown above? Can you not convert the wav files to mp3's then combine them? -- Regards, Clive. Clive: That's a good point, then all I would have to do is to change the resultant mp3 file to a wav file. However, I'm not aware of how to do that using php. I would hope it's as easy as changing a jpg to a gif file, but I have never done a mp3 to a wav conversion before. I'll investigate that. Thanks, tedd -- --- http://sperling.com http://ancientstones.com http://earthstones.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Combining sound files
That's a good point, then all I would have to do is to change the
resultant mp3 file to a wav file. However, I'm not aware of how to do
that using php. I would hope it's as easy as changing a jpg to a gif
file, but I have never done a mp3 to a wav conversion before. I'll
investigate that.
you could look at lame? and you will have to call it from php using
exec() or shell_exec()
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Clive.
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