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Hi, I am a little bit confused about the following procedure (Windows). What is wrong? 1. Take a usual 2ch/16 Bit/44,1 kHz WAV-File (CD) 2. To get a 32 Bit FLOAT 88200 Hz File: sox input_16_44100.wav" -b 32 -e float output_88200_32F.wav rate -s -a -v -L 88200 3. sox output_88200_32F.wav output_88200_32F.raw The *.raw file has 58 bytes less -> the Wav-Float-Header has a size of 58 bytes. My own code cannot read this header in Audio format 3 (only wav-PCM and Extensible like 24 Bit Wav and 32 Bit Wav). I looked inside with Hex-Editor: -4 byte fact-chunk is beginning at byte 38 -4 byte data-chunk is beginning at byte 50 ("usually" before fact-chunk) I could not read the size of the raw-data-chunk (raw data length). Theses bytes are at the end of the header. Here (hex): 00 00 D8 0E -> 55310 bytes, what is wrong! It should be (dec:) 249036800 bytes! This would be 0E D8 00 00 -> most significant bit! Then I tried this: sox.exe -r 88200 -e float -b 24 -c 2output_88200_32F.raw out.wav Error! This would be working (but makes no sense...): sox.exe -r 88200 -e signed-integer -b 24 -c 2output_88200_32F.raw out.wav Any idea? Regards Thomas |
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