Importing PCM Data

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Atton
Posts: 2
Joined: Tue May 09, 2017 9:12 am
Operating System: Windows 7

A quick question about PCM

Post by Atton » Tue May 09, 2017 12:40 pm

I've been playing around with MPG123 and also a little bit with Audacity. I took an MP3 file and I used Audacity to produce a pcm file and MPG123 to do the same.
However the files have differed greatly even taking into account the two files are pure pcm data, rather than wav. Are there any additions that need to be made to the pcm steam and can this be done easily?
I'm using VS2015 and windows 7
https://pastebin.com/KsQ3vmuU

kozikowski
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Re: Importing PCM Data

Post by kozikowski » Tue May 09, 2017 7:29 pm

It's not unusual for Audacity to not support every single metadata flag. Could that be it? Some of those flags can contain tons of data.

Koz

steve
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Re: Importing PCM Data

Post by steve » Tue May 09, 2017 8:01 pm

I don't know the answer, but I see there are some examples in the mpg123 documentation that maybe helpful: https://mpg123.org/api/
9/10 questions are answered in the FREQUENTLY ASKED QUESTIONS (FAQ)

Atton
Posts: 2
Joined: Tue May 09, 2017 9:12 am
Operating System: Windows 7

Re: Importing PCM Data

Post by Atton » Fri May 12, 2017 8:24 am

kozikowski wrote:It's not unusual for Audacity to not support every single metadata flag. Could that be it? Some of those flags can contain tons of data.

Koz
So meta is required then by sounds of it?

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