Michael <macallan18@earthlink.net> writes:

> The function as it is was more or less a hack, it should probably use
> the table from the datasheet so the mixer would respond to something
> resembling db, more or less like the bass/treble controls ( yes, typing
> them in will be a pain in the arse, I meant to do it at some point -
> it's probably time now since the mixer controls actually became useful )

Nah, it wasn't that difficult with pdftotext and some editing macros
;)

Magnus


const uint8_t snapper_mixer_gain[178][3] = {
  { 0x7f, 0x17, 0xaf }, /* 18.0 dB */
  { 0x77, 0xfb, 0xaa }, /* 17.5 dB */
  { 0x71, 0x45, 0x75 }, /* 17.0 dB */
  { 0x6a, 0xef, 0x5d }, /* 16.5 dB */
  { 0x64, 0xf4, 0x03 }, /* 16.0 dB */
  { 0x5f, 0x4e, 0x52 }, /* 15.5 dB */
  { 0x59, 0xf9, 0x80 }, /* 15.0 dB */
  { 0x54, 0xf1, 0x06 }, /* 14.5 dB */
  { 0x50, 0x30, 0xa1 }, /* 14.0 dB */
  { 0x4b, 0xb4, 0x46 }, /* 13.5 dB */
  { 0x47, 0x78, 0x28 }, /* 13.0 dB */
  { 0x43, 0x78, 0xb0 }, /* 12.5 dB */
  { 0x3f, 0xb2, 0x78 }, /* 12.0 dB */
  { 0x3c, 0x22, 0x4c }, /* 11.5 dB */
  { 0x38, 0xc5, 0x28 }, /* 11.0 dB */
  { 0x35, 0x98, 0x2f }, /* 10.5 dB */
  { 0x32, 0x98, 0xb0 }, /* 10.0 dB */
  { 0x2f, 0xc4, 0x20 }, /* 9.5 dB */
  { 0x2d, 0x18, 0x18 }, /* 9.0 dB */
  { 0x2a, 0x92, 0x54 }, /* 8.5 dB */
  { 0x28, 0x30, 0xaf }, /* 8.0 dB */
  { 0x25, 0xf1, 0x25 }, /* 7.5 dB */
  { 0x23, 0xd1, 0xcd }, /* 7.0 dB */
  { 0x21, 0xd0, 0xd9 }, /* 6.5 dB */
  { 0x1f, 0xec, 0x98 }, /* 6.0 dB */
  { 0x1e, 0x23, 0x6d }, /* 5.5 dB */
  { 0x1c, 0x73, 0xd5 }, /* 5.0 dB */
  { 0x1a, 0xdc, 0x61 }, /* 4.5 dB */
  { 0x19, 0x5b, 0xb8 }, /* 4.0 dB */
  { 0x17, 0xf0, 0x94 }, /* 3.5 dB */
  { 0x16, 0x99, 0xc0 }, /* 3.0 dB */
  { 0x15, 0x56, 0x1a }, /* 2.5 dB */
  { 0x14, 0x24, 0x8e }, /* 2.0 dB */
  { 0x13, 0x04, 0x1a }, /* 1.5 dB */
  { 0x11, 0xf3, 0xc9 }, /* 1.0 dB */
  { 0x10, 0xf2, 0xb4 }, /* 0.5 dB */
  { 0x10, 0x00, 0x00 }, /* 0.0 dB */
  { 0x0f, 0x1a, 0xdf }, /* -0.5 dB */
  { 0x0e, 0x42, 0x90 }, /* -1.0 dB */
  { 0x0d, 0x76, 0x5a }, /* -1.5 dB */
  { 0x0c, 0xb5, 0x91 }, /* -2.0 dB */
  { 0x0b, 0xff, 0x91 }, /* -2.5 dB */
  { 0x0b, 0x53, 0xbe }, /* -3.0 dB */
  { 0x0a, 0xb1, 0x89 }, /* -3.5 dB */
  { 0x0a, 0x18, 0x66 }, /* -4.0 dB */
  { 0x09, 0x87, 0xd5 }, /* -4.5 dB */
  { 0x08, 0xff, 0x59 }, /* -5.0 dB */
  { 0x08, 0x7e, 0x80 }, /* -5.5 dB */
  { 0x08, 0x04, 0xdc }, /* -6.0 dB */
  { 0x07, 0x92, 0x07 }, /* -6.5 dB */
  { 0x07, 0x25, 0x9d }, /* -7.0 dB */
  { 0x06, 0xbf, 0x44 }, /* -7.5 dB */
  { 0x06, 0x5e, 0xa5 }, /* -8.0 dB */
  { 0x06, 0x03, 0x6e }, /* -8.5 dB */
  { 0x05, 0xad, 0x50 }, /* -9.0 dB */
  { 0x05, 0x5c, 0x04 }, /* -9.5 dB */
  { 0x05, 0x0f, 0x44 }, /* -10.0 dB */
  { 0x04, 0xc6, 0xd0 }, /* -10.5 dB */
  { 0x04, 0x82, 0x68 }, /* -11.0 dB */
  { 0x04, 0x41, 0xd5 }, /* -11.5 dB */
  { 0x04, 0x04, 0xde }, /* -12.0 dB */
  { 0x03, 0xcb, 0x50 }, /* -12.5 dB */
  { 0x03, 0x94, 0xfa }, /* -13.0 dB */
  { 0x03, 0x61, 0xaf }, /* -13.5 dB */
  { 0x03, 0x31, 0x42 }, /* -14.0 dB */
  { 0x03, 0x03, 0x8a }, /* -14.5 dB */
  { 0x02, 0xd8, 0x62 }, /* -15.0 dB */
  { 0x02, 0xaf, 0xa3 }, /* -15.5 dB */
  { 0x02, 0x89, 0x2c }, /* -16.0 dB */
  { 0x02, 0x64, 0xdb }, /* -16.5 dB */
  { 0x02, 0x42, 0x93 }, /* -17.0 dB */
  { 0x02, 0x22, 0x35 }, /* -17.5 dB */
  { 0x02, 0x03, 0xa7 }, /* -18.0 dB */
  { 0x01, 0xe6, 0xcf }, /* -18.5 dB */
  { 0x01, 0xcb, 0x94 }, /* -19.0 dB */
  { 0x01, 0xb1, 0xde }, /* -19.5 dB */
  { 0x01, 0x99, 0x99 }, /* -20.0 dB */
  { 0x01, 0x82, 0xaf }, /* -20.5 dB */
  { 0x01, 0x6d, 0x0e }, /* -21.0 dB */
  { 0x01, 0x58, 0xa2 }, /* -21.5 dB */
  { 0x01, 0x45, 0x5b }, /* -22.0 dB */
  { 0x01, 0x33, 0x28 }, /* -22.5 dB */
  { 0x01, 0x21, 0xf9 }, /* -23.0 dB */
  { 0x01, 0x11, 0xc0 }, /* -23.5 dB */
  { 0x01, 0x02, 0x70 }, /* -24.0 dB */
  { 0x00, 0xf3, 0xfb }, /* -24.5 dB */
  { 0x00, 0xe6, 0x55 }, /* -25.0 dB */
  { 0x00, 0xd9, 0x73 }, /* -25.5 dB */
  { 0x00, 0xcd, 0x49 }, /* -26.0 dB */
  { 0x00, 0xc1, 0xcd }, /* -26.5 dB */
  { 0x00, 0xb6, 0xf6 }, /* -27.0 dB */
  { 0x00, 0xac, 0xba }, /* -27.5 dB */
  { 0x00, 0xa3, 0x10 }, /* -28.0 dB */
  { 0x00, 0x99, 0xf1 }, /* -28.5 dB */
  { 0x00, 0x91, 0x54 }, /* -29.0 dB */
  { 0x00, 0x89, 0x33 }, /* -29.5 dB */
  { 0x00, 0x81, 0x86 }, /* -30.0 dB */
  { 0x00, 0x7a, 0x48 }, /* -30.5 dB */
  { 0x00, 0x73, 0x70 }, /* -31.0 dB */
  { 0x00, 0x6c, 0xfb }, /* -31.5 dB */
  { 0x00, 0x66, 0xe3 }, /* -32.0 dB */
  { 0x00, 0x61, 0x21 }, /* -32.5 dB */
  { 0x00, 0x5b, 0xb2 }, /* -33.0 dB */
  { 0x00, 0x56, 0x91 }, /* -33.5 dB */
  { 0x00, 0x51, 0xb9 }, /* -34.0 dB */
  { 0x00, 0x4d, 0x27 }, /* -34.5 dB */
  { 0x00, 0x48, 0xd6 }, /* -35.0 dB */
  { 0x00, 0x44, 0xc3 }, /* -35.5 dB */
  { 0x00, 0x40, 0xea }, /* -36.0 dB */
  { 0x00, 0x3d, 0x49 }, /* -36.5 dB */
  { 0x00, 0x39, 0xdb }, /* -37.0 dB */
  { 0x00, 0x36, 0x9e }, /* -37.5 dB */
  { 0x00, 0x33, 0x90 }, /* -38.0 dB */
  { 0x00, 0x30, 0xae }, /* -38.5 dB */
  { 0x00, 0x2d, 0xf5 }, /* -39.0 dB */
  { 0x00, 0x2b, 0x63 }, /* -39.5 dB */
  { 0x00, 0x28, 0xf5 }, /* -40.0 dB */
  { 0x00, 0x26, 0xab }, /* -40.5 dB */
  { 0x00, 0x24, 0x81 }, /* -41.0 dB */
  { 0x00, 0x22, 0x76 }, /* -41.5 dB */
  { 0x00, 0x20, 0x89 }, /* -42.0 dB */
  { 0x00, 0x1e, 0xb7 }, /* -42.5 dB */
  { 0x00, 0x1c, 0xff }, /* -43.0 dB */
  { 0x00, 0x1b, 0x60 }, /* -43.5 dB */
  { 0x00, 0x19, 0xd8 }, /* -44.0 dB */
  { 0x00, 0x18, 0x65 }, /* -44.5 dB */
  { 0x00, 0x17, 0x08 }, /* -45.0 dB */
  { 0x00, 0x15, 0xbe }, /* -45.5 dB */
  { 0x00, 0x14, 0x87 }, /* -46.0 dB */
  { 0x00, 0x13, 0x61 }, /* -46.5 dB */
  { 0x00, 0x12, 0x4b }, /* -47.0 dB */
  { 0x00, 0x11, 0x45 }, /* -47.5 dB */
  { 0x00, 0x10, 0x4e }, /* -48.0 dB */
  { 0x00, 0x0f, 0x64 }, /* -48.5 dB */
  { 0x00, 0x0e, 0x88 }, /* -49.0 dB */
  { 0x00, 0x0d, 0xb8 }, /* -49.5 dB */
  { 0x00, 0x0c, 0xf3 }, /* -50.0 dB */
  { 0x00, 0x0c, 0x3a }, /* -50.5 dB */
  { 0x00, 0x0b, 0x8b }, /* -51.0 dB */
  { 0x00, 0x0a, 0xe5 }, /* -51.5 dB */
  { 0x00, 0x0a, 0x49 }, /* -52.0 dB */
  { 0x00, 0x09, 0xb6 }, /* -52.5 dB */
  { 0x00, 0x09, 0x2b }, /* -53.0 dB */
  { 0x00, 0x08, 0xa8 }, /* -53.5 dB */
  { 0x00, 0x08, 0x2c }, /* -54.0 dB */
  { 0x00, 0x07, 0xb7 }, /* -54.5 dB */
  { 0x00, 0x07, 0x48 }, /* -55.0 dB */
  { 0x00, 0x06, 0xe0 }, /* -55.5 dB */
  { 0x00, 0x06, 0x7d }, /* -56.0 dB */
  { 0x00, 0x06, 0x20 }, /* -56.5 dB */
  { 0x00, 0x05, 0xc9 }, /* -57.0 dB */
  { 0x00, 0x05, 0x76 }, /* -57.5 dB */
  { 0x00, 0x05, 0x28 }, /* -58.0 dB */
  { 0x00, 0x04, 0xde }, /* -58.5 dB */
  { 0x00, 0x04, 0x98 }, /* -59.0 dB */
  { 0x00, 0x04, 0x56 }, /* -59.5 dB */
  { 0x00, 0x04, 0x18 }, /* -60.0 dB */
  { 0x00, 0x03, 0xdd }, /* -60.5 dB */
  { 0x00, 0x03, 0xa6 }, /* -61.0 dB */
  { 0x00, 0x03, 0x72 }, /* -61.5 dB */
  { 0x00, 0x03, 0x40 }, /* -62.0 dB */
  { 0x00, 0x03, 0x12 }, /* -62.5 dB */
  { 0x00, 0x02, 0xe6 }, /* -63.0 dB */
  { 0x00, 0x02, 0xbc }, /* -63.5 dB */
  { 0x00, 0x02, 0x95 }, /* -64.0 dB */
  { 0x00, 0x02, 0x70 }, /* -64.5 dB */
  { 0x00, 0x02, 0x4d }, /* -65.0 dB */
  { 0x00, 0x02, 0x2c }, /* -65.5 dB */
  { 0x00, 0x02, 0x0d }, /* -66.0 dB */
  { 0x00, 0x01, 0xf0 }, /* -66.5 dB */
  { 0x00, 0x01, 0xd4 }, /* -67.0 dB */
  { 0x00, 0x01, 0xba }, /* -67.5 dB */
  { 0x00, 0x01, 0xa1 }, /* -68.0 dB */
  { 0x00, 0x01, 0x8a }, /* -68.5 dB */
  { 0x00, 0x01, 0x74 }, /* -69.0 dB */
  { 0x00, 0x01, 0x5f }, /* -69.5 dB */
  { 0x00, 0x01, 0x4b }, /* -70.0 dB */
  { 0x00, 0x00, 0x00 }  /* Mute */
};