Convert RAW PCM 8 to 16 also divde speed by half

Audacity Help Forum GNU/Linux
1

Gentoo Linux x86 / Audacity 2.2.2

Hi,

I’m trying to convert a raw dump from 8 bits to 16 bits.

If I import this dump into audacity as raw data as Signed 8 bit pcm / little endian/ 1 channel mono / 44100 hz it works perfectly and it plays as expected.

However if I do the export to 16 bits signed as raw data and open it back it’s know only half length and with a higher pitch here.

How to avoid this and get a same length - same pitch output file ?

2

To convert to a normal 16-bit WAV file:

  1. Import RAW (signed 8-bit)
  2. “File menu > Export > Export as WAV”


    To convert to signed 16-bit RAW file:
  3. Import RAW (signed 8-bit)
  4. “File menu > Export > Export Audio…”, then select “RAW (headerless)” as the “Header” setting, and “Signed 16-bit PCM” as the “Encoding”.
3

Half worked:

original.raw (8bits pcm) → sound-dump.wav (16 bits / 2 channels) ok, plays as expected
sound-dump.wav → sound-dump-16.raw (headerless, 16bits unsigned) Not ok, plays faster and highier.

4

Why do you think the original file is stereo?

Do you know what it is supposed to sound like? Where did the RAW file come from?