Échantillon sonore (AVR)
Le format d'échantillon sonore Audio Visual Research est relativement répandu car contrairement aux nombreux fichiers SPL utilisés par les modules soundtracks, il contient des informations sur le type d'échantillons (mono/stéréo, résolution 8 ou 16 bits, fréquence etc).
/ AVR Format Header Data Structure-128 Bytes / typedef struct { char magic[4]; / Magic number = "2BIT" / char name[8]; / Sample name (null-padded string) / short mono; / Number of channels-mono/stereo / short rez; / Sample resolution-8/16-bit / short sign; / Sample format-signed/unsigned / short loop; / Loop mode-on/off / short midi; / MIDI note assign or keyboard split / long rate; / Sample frequency in Hz / long size; / Data length in samples / long lbeg; / Offset to start of loop-0 if unused. / long lend; / Offset to end of loop-0 if unused. / short resl; / Reserved, MIDI keyboard split / short res2; / Reserved, sample compression / short res3; / Reserved / char ext[20]; / Longer name space (if name[7] != 0) / char user[64]; / User-defined; typically ASCII /
} AVRHeader
