Re: [SoX-users] Creating a special 24 Bit format

[robs <aq...@ya...>]

Hmm, I've now tried it and it does seem to work here:

Create a signed 24-bit raw file:

$ sox -r 88200 -n -b 24 -e signed temp.raw synth 40s noise

$ hd temp.raw
00000000  05 b7 cc b5 60 03 ae a3  93 d1 67 e0 38 e9 63 4b  |....`.....g.8.cK|
00000010  ee ba ea b0 02 9e d7 b7  fb d6 e8 a8 55 3d b8 0a  |............U=..|
00000020  e0 4c 4a da a1 83 48 0f  3a 1b 8b 13 35 bd f7 4f  |.LJ...H.:...5..O|
00000030  be 9d 76 04 71 b7 18 3b  fd 17 44 f3 27 93 f4 4c  |..v.q..;..D.'..L|
00000040  06 1b 52 32 82 bd 63 d7  ef e4 5f ea 7f a7 6d 5f  |..R2..c..._...m_|
00000050  81 53 3f 67 6a bb db 21  62 6b dc 91 0e be 97 a0  |.S?gj..!bk......|
00000060  2c ba 69 78 f3 1c 56 f6  67 21 6a 0f 0a 14 86 b0  |,.ix..V.g!j.....|
00000070  40 ff cc 4a 2f e0 93 6d                           |@..J/..m|
00000078

Convert to 32 bit:

$ sox -r 88200 -e unsigned -b 24 temp.raw -b 32 output.raw

$ hd output.raw 
00000000  00 05 b7 cc 00 b5 60 03  00 ae a3 93 00 d1 67 e0  |......`.......g.|
00000010  00 38 e9 63 00 4b ee ba  00 ea b0 02 00 9e d7 b7  |.8.c.K..........|
00000020  00 fb d6 e8 00 a8 55 3d  00 b8 0a e0 00 4c 4a da  |......U=.....LJ.|
00000030  00 a1 83 48 00 0f 3a 1b  00 8b 13 35 00 bd f7 4f  |...H..:....5...O|
00000040  00 be 9d 76 00 04 71 b7  00 18 3b fd 00 17 44 f3  |...v..q...;...D.|
00000050  00 27 93 f4 00 4c 06 1b  00 52 32 82 00 bd 63 d7  |.'...L...R2...c.|
00000060  00 ef e4 5f 00 ea 7f a7  00 6d 5f 81 00 53 3f 67  |..._.....m_..S?g|
00000070  00 6a bb db 00 21 62 6b  00 dc 91 0e 00 be 97 a0  |.j...!bk........|
00000080  00 2c ba 69 00 78 f3 1c  00 56 f6 67 00 21 6a 0f  |.,.i.x...V.g.!j.|
00000090  00 0a 14 86 00 b0 40 ff  00 cc 4a 2f 00 e0 93 6d  |......@...J/...m|
000000a0

Lower 8 bits of all 32-bit samples are zero (upper 24 bits unchanged).




----- Original Message ----
> From: TJF <tjf...@we...>
> To: sox...@li...
> Sent: Tue, 9 March, 2010 22:41:48
> Subject: Re: [SoX-users] Creating a special 24 Bit format
> 
> Thank you! But both does not work...
> 
> 
> robs schrieb:
> > Not tried it, but this might work:
> >
> > sox music.wav -e signed -b 24 temp.raw rate 88200
> > sox -e unsigned -b 24 -r 88200 temp.raw -b 32 output_88200_24.raw
> >
> >
> > ----- Original Message ----
> >  
> >> From: TJF 
> >> To: sox...@li...
> >> Sent: Tue, 9 March, 2010 20:51:31
> >> Subject: [SoX-users] Creating a special 24 Bit format
> >>
> >> Hi,
> >>
> >> has anyone an idea, how to create such a raw-file with sox:
> >>
> >> 24 Bit Raw-File which uses the upper 3 bytes of 32-bit signed integer...?
> >>
> >> I tried things like this (Win), also 32...:
> >> sox.exe music.wav -e signed -b 24 -t .raw output_88200_24.raw rate 88200