Import Codec: Tracker file PCM S16 LE (araw) [SOLVED]

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robberer
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Import Codec: Tracker file PCM S16 LE (araw) [SOLVED]

Post by robberer » Sat Jul 30, 2016 7:27 am

Hi,

I have a file extracted from a old Amiga game. It's a song that lasts 1 minute and 38 seconds. The file size is around 80KB !

I'm trying to convert this file into ogg but I can't import the file in Audacity. VLC can play the file and tells me the following codec:

Audio
PCM S16 LE (araw)
Stereo
44100 Hz
16bit

FFMpeg is already installed and detected by Audacity. Do I miss something else to import the file into Audacity ?

And I have to that I'm rather surprised about the file size (80kb) for a soundfile of that length.

regards,
Robert
Last edited by Gale Andrews on Sun Jul 31, 2016 12:51 pm, edited 1 time in total.
Reason: more accurate title

steve
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Re: Import Codec: PCM S16 LE (araw)

Post by steve » Sat Jul 30, 2016 9:29 am

robberer wrote: And I have to that I'm rather surprised about the file size (80kb) for a soundfile of that length.
Me too.
robberer wrote: It's a song that lasts 1 minute and 38 seconds
<snip>
Audio
PCM S16 LE (araw)
Stereo
44100 Hz
16bit
That should be:
2 (stereo) x 16 (bits per sample) x 44100 (samples per second) = 140800 bits per second = 176400 bytes per second.
1 min 38 = 98 seconds
98 x 176400 / 1024 = (about) 17 MB.

Perhaps the file is a play list file that points to a 16bit PCM file.
Try opening the file in a plain text editor (such as NotePad) and see what happens.
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DVDdoug
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Re: Import Codec: PCM S16 LE (araw)

Post by DVDdoug » Sat Jul 30, 2016 9:38 am

Since VLC can play it, you should be able to convert to another format with VLC. There is some information here.

robberer
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Re: Import Codec: PCM S16 LE (araw)

Post by robberer » Sat Jul 30, 2016 1:22 pm

steve wrote:
robberer wrote: And I have to that I'm rather surprised about the file size (80kb) for a soundfile of that length.
Me too.

Yeah, it's really strange. I guess VLC converts this file onDemand. What my be the real format ?
robberer wrote: It's a song that lasts 1 minute and 38 seconds
<snip>
Audio
PCM S16 LE (araw)
Stereo
44100 Hz
16bit
That should be:
2 (stereo) x 16 (bits per sample) x 44100 (samples per second) = 140800 bits per second = 176400 bytes per second.
1 min 38 = 98 seconds
98 x 176400 / 1024 = (about) 17 MB.

Perhaps the file is a play list file that points to a 16bit PCM file.
Try opening the file in a plain text editor (such as NotePad) and see what happens.
I did opening this in an hex editor. It starts with nice comments :-) . I'm not sure if I'm allowed to post this file to the public. You could find it by extracting the Disk 1 ADF from Pizza Connection 1 for Amiga. It's in the sounds folder and is called "titel"

robberer
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Re: Import Codec: PCM S16 LE (araw)

Post by robberer » Sat Jul 30, 2016 1:25 pm

DVDdoug wrote:Since VLC can play it, you should be able to convert to another format with VLC. There is some information here.
Yeah, I did, but the file extends to 1.6MB while converting it. Very odd.

Gale Andrews
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Re: Import Codec: PCM S16 LE (araw)

Post by Gale Andrews » Sat Jul 30, 2016 1:43 pm

VLC's codec information is imperfect in my experience. It may be telling you what it decoded it to in order to play it.


Gale
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DVDdoug
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Re: Import Codec: PCM S16 LE (araw)

Post by DVDdoug » Sat Jul 30, 2016 9:37 pm

Yeah, I did, but the file extends to 1.6MB while converting it. Very odd.
That's not surprising to me... It depends on what format you converted to. That would be in the ballpark for an MP3, and Steve did the calculations for an uncompressed file (17MB). What format did you convert to?

It's the 80K file that's a mystery.

robberer
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Re: Import Codec: PCM S16 LE (araw)

Post by robberer » Sun Jul 31, 2016 6:28 am

DVDdoug wrote:
Yeah, I did, but the file extends to 1.6MB while converting it. Very odd.
That's not surprising to me... It depends on what format you converted to. That would be in the ballpark for an MP3, and Steve did the calculations for an uncompressed file (17MB). What format did you convert to?

It's the 80K file that's a mystery.
File *attached*. As the game disk is hosted to the public i think i can risk posting the file.

robberer
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Re: Import Codec: PCM S16 LE (araw)

Post by robberer » Sun Jul 31, 2016 6:31 am

attachment
Attachments
titel.wav
I had to give wav extension to upload. But most probably it's not WAV
(79.22 KiB) Downloaded 117 times

cyrano
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Re: Import Codec: PCM S16 LE (araw)

Post by cyrano » Sun Jul 31, 2016 10:23 am

Wrong extension? What was the original extension?

Looks like a .mod or midi file to me. VLC seems to play both.

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