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DNA1

Catégorie :

processeur de restauration audio numérique

Description

Le DNA1 est une véritable boite à outils de restauration sonore. Il permet d’éliminer de façon sélective les bruits de fond, les bruits de surface et les clics. Le processeur d’ambiance K-Stéréo intégré au DNA1 permet de redonner de la vie à des programmes restaurés, ou de générer de la pseudo stéréo à partir de mono. Une matrice M/S permet aussi d’en modifier la largeur stéréophonique.

 

Power

  • Mains voltage: 115 V or 230 V with voltage selector
  • Fuse rating: 500 mA slow blow
  • Power consumption: 40 VA max.

 

Size

  • Depth: 30 cm
  • Width: 43,3 cm (19″)
  • Height: 8,8 cm (2HU)

 

AES/EBU Input

  • Sampling frequencies: 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz
  • Maximum input word-length: 24 Bits
  • Channel Status Data: Input accepts professional or consumer format
  • Channel Status Data Bits forwarded to AES/EBU output: see table below
  • Connector: XLR female

 

AES/EBU Output

  • Sampling frequencies: 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz (always the same as the input)
  • Output word-length: 24 Bits
  • Connector: XLR male

 

AES/EBU Channel Status Data

The DNA1 allows to convert the incoming Channel Status Data as follows:

  • From Consumer to Professional
  • From Professional to Consumer
  • Transparent mode, i.e. Channel Status Data is fed forward to the output without any conversion (one exception, see below)

 

The following tables describe how the output Channel Status Data Bits are generated in the various conversion modes.

 

Output selected: Consumer format, Input: Consumer format:

All Bits fed forward (transparent), except for Byte 1:

  • Bits 0…6: 0000000 (category code general)
  • Bit 7: 1 (original)

 

Output selected: Consumer format, Input: Professional format:

Byte 0:

  • Bit 0: 0 (consumer)
  • Bit 1: 0 (audio)
  • Bit 2: 1 (copy allowed)
  • Bits 3, 4: Pre-emphasis according to input
  • Bit 5: 0 (two channel mode)
  • Bits 6, 7: 00 (Mode 0)

 

Byte 1:

  • Bits 0…6: 0000000 (category code general)
  • Bit 7: 1 (original)

 

Byte 2:

  • Bits 0, 1, 2, 3: Sampling frequency according to input
  • Bits 4, 5: 00 (accuracy grade II)
  • Bits 6, 7: 00

 

Bytes 3…23: Reserved bytes

 

Output selected: Professional format, Input: Professional format:

All Bits fed forward (transparent), except for Byte 2:

  • Bits 0, 1, 2: 001 (max. sample length = 24 Bit)
  • Bits 3, 4, 5: 101 (24 Bit word-length)
  • Bits 6, 7: 00

 

Output selected: Professional format, Input: Consumer format:

Byte 0:

  • Bit 0: 1 (professional)
  • Bit 1: 0 (audio)
  • Bits 2, 3, 4: Pre-emphasis according to input
  • Bit 5: 0 (source fs locked)
  • Bits 6, 7: Sampling frequency according to input

 

Byte 1:

  • Bits 0, 1, 2, 3: 0001 (two channel mode)
  • Bits 4, 5, 6, 7: 0000 (no user Bit encoding)

 

Byte 2:

  • Bits 0, 1, 2: 001 (max. sample length = 24 Bit)
  • Bits 3, 4, 5: 101 (24 Bit word-length)
  • Bits 6, 7: 00

 

Bytes 3…12: All Bits 0
Byte 23: CRCC byte

 

Output selected: Transparent, Input: Any format:

All Bits fed forward (transparent), except if EQ not bypassed for Byte 2:

  • Bits 0, 1, 2: 001 (max. sample length = 24 Bit)
  • Bits 3, 4, 5: 101 (24 Bit word-length)
  • Bits 6, 7: 00

Overload

Number of consecutive over-samples to cause “over” display: 1…16 selectable

 

Parameter Tables

Denoiser SNR improvement (dB):

0.0, 0.5, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 7.5, 8.0, 8.5, 9.0, 9.5, 10.0, 10.5, 11.0, 11.5, 12.0, 12.5, 13.0, 13.5, 14.0, 14.5, 15.0, 15.5, 16.0, 16.5, 17.0, 17.5, 18.0, 18.5, 19.0, 19.5, 20.0, 20.5, 21.0, 21.5, 22.0, 22.5, 23.0, 23.5, 24.0, 24.5, 25.0, 25.5, 26.0, 26.5, 27.0, 27.5, 28.0, 28.5, 29.0, 29.5, 30.0, 30.5, 31.0, 31.5, 32.0, 32.5, 33.0, 33.5, 34.0, 34.5, 35.0, 35.5, 36.0, 36.5, 37.0, 37.5, 38.0, 38.5, 39.0, 39.5, 40.0, 40.5, 41.0, 41.5, 42.0, 42.5, 43.0, 43.5, 44.0, 44.5, 45.0, 45.5, 46.0, 46.5, 47.0, 47.5, 48.0, 48.5, 49.0, 49.5, 50.0, 50.5, 51.0, 51.5, 52.0, 52.5, 53.0, 53.5, 54.0, 54.5, 55.0, 55.5, 56.0, 56.5, 57.0, 57.5, 58.0, 58.5, 59.0, 59.5, 60.0, 60.5, 61.0, 61.5, 62.0, 62.5, 63.0

 

Denoiser Intensity (%):

0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100

 

Denoiser ambiance level (dB):

0.0, 0.5, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 7.5, 8.0, 8.5, 9.0, 9.5, 10.0, 10.5, 11.0, 11.5, 12.0, 12.5, 13.0, 13.5, 14.0, 14.5, 15.0, 15.5, 16.0, 16.5, 17.0, 17.5, 18.0, 18.5, 19.0, 19.5, 20.0, 20.5, 21.0, 21.5, 22.0, 22.5, 23.0, 23.5, 24.0, 24.5, 25.0, 25.5, 26.0, 26.5, 27.0, 27.5, 28.0, 28.5, 29.0, 29.5, 30.0, 30.5, 31.0, 31.5, 32.0, 32.5, 33.0, 33.5, 34.0, 34.5, 35.0, 35.5, 36.0, 36.5, 37.0, 37.5, 38.0, 38.5, 39.0, 39.5, 40.0, 40.5, 41.0, 41.5, 42.0, 42.5, 43.0, 43.5, 44.0, 44.5, 45.0, 45.5, 46.0, 46.5, 47.0, 47.5, 48.0, 48.5, 49.0, 49.5, 50.0, 50.5, 51.0, 51.5, 52.0, 52.5, 53.0, 53.5, 54.0, 54.5, 55.0, 55.5, 56.0, 56.5, 57.0, 57.5, 58.0, 58.5, 59.0, 59.5, 60.0, 60.5, 61.0, 61.5, 62.0, 62.5, 63.0

 

Denoiser frequency resolution (number of frequency points):

128, 256, 512, 1024, 2048

 

Denoiser crossover frequencies (Hz):

100, 257, 413, 570, 727, 883, 1040, 1197, 1354, 1510, 1667, 1824, 1980, 2137, 2294, 2450, 2607, 2764, 2920, 3077, 3234, 3391, 3547, 3704, 3861, 4017, 4174, 4331, 4487, 4644, 4801, 4957, 5114, 5271, 5428, 5584, 5741, 5898, 6054, 6211, 6368, 6524, 6681, 6838, 6994, 7151, 7308, 7465, 7621, 7778, 7935, 8091, 8248, 8405, 8561, 8718, 8875, 9031, 9188, 9345, 9502, 9658, 9815, 9972, 10128, 10285, 10442, 10598, 10755, 10912, 11069, 11225, 11382, 11539, 11695, 11852, 12009, 12165, 12322, 12479, 12635, 12792, 12949, 13106, 13262, 13419, 13576, 13732, 13889, 14046, 14202, 14359, 14516, 14672, 14829, 14986, 15143, 15299, 15456, 15613, 15769, 15926, 16083, 16239, 16396, 16553, 16709, 16866, 17023, 17180, 17336, 17493, 17650, 17806, 17963, 18120, 18276, 18433, 18590, 18746, 18903, 19060, 19217, 19373, 19530, 19687, 19843, 20000

 

Denoiser attack time (frames):

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57

 

Denoiser release time constants and AVERAGE (frames):

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127

 

Declicker Presets Preset 1 Preset 2 Preset 3 Preset 4
Small Clicks Medium Clicks Large Clicks Scratches
DETECTION THRESHOLD 16 20 24 40
EXTENSION THRESHOLD 3.2 3 2.4 1.5
ASYMMETRY 0.2 0.4 0.6 0.9
ADAPTIVITY 0.7 0.5 0.4 0.1
DISCARD THRESHOLD 0.05 0.05 0.1 0.3
MAXIMUM CLICK LENGTH 50 100 100 300

Declicker SMOOTH:

on/off

 

Declicker LATENCY (s):

0.15, 0.20, 0.25, 0.30, 0.35, 0.40, 0.45, 0.50, 0.60, 0.70, 0.80, 0.90, 1.00, 1.20, 1.40, 1.60, 1.80, 2.00, 2.20, 2.40, 2.60, 2.80, 3.00

 

Declicker DETECTION THRESHOLD:

3.0, 3.1, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 4.0, 4.2, 4.4, 4.6, 4.8, 5.0, 5.2, 5.4, 5.6, 5.8, 6.0, 6.5, 7.0, 7.5, 8.0, 8.5, 9.0, 9.5, 10.0, 11.0, 12.0, 13.0, 14.0, 15.0, 16.0, 17.0, 18.0, 19.0, 20.0, 21.0, 22.0, 23.0, 24.0, 25.0, 26.0, 27.0, 28.0, 29.0, 30.0, 32.0, 34.0, 36.0, 38.0, 40.0, 45.0, 50.0, 55.0, 60.0, 70.0, 80.0, 90.0, 100.0, inf

 

Declicker EXTENSION THRESHOLD:

0.5, 0.55, 0.6, 0.65, 0.7, 0.75, 0.8, 0.85, 0.9, 0.95, 1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0, 2.2, 2.4, 2.6, 2.8, 3.0, 3.2, 3.4, 3.6, 3.8, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 7.5, 8.0, 8.5, 9.0, 9.5, 10.0

 

Declicker DISCARD THRESHOLD:

0.00, 0.05, 0.10, 0.15, 0.20, 0.25, 0.30, 0.35, 0.40, 0.45, 0.50, 0.55, 0.60, 0.65, 0.70, 0.75, 0.80, 0.85, 0.90, 0.95, 1.00

 

Declicker CLICK LENGTH (samples):

50, 100, 200, 300

 

Declicker ADAPTIVITY:

0.0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0

 

Declicker ASYMMETRY:

0.0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0

 

K-level (dB):

−17.0, −16.5, −16.0, −15.5, −15.0, −14.5, −14.0, −13.5, −13.0, −12.5, −12.0, −11.5, −11.0, −10.5, −10.0, −9.5, −9.0, −8.5, −8.0, −7.5, −7.0, −6.5, −6.0, −5.5, −5.0, −4.5, −4.0, −3.5, −3.0, −2.5, −2.0, −1.5, −1.0, −0.5, 0.0, 0.5, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 7.5, 8.0, 8.5, 9.0

 

K-Stereo Ambiance Filters Frequencies (Hz):

20 , 25, 31.5, 40, 50, 63, 80, 100, 126, 159, 200, 250, 315, 400, 500, 630, 800, 1000, 1260, 1590, 2000, 2500, 3150, 4000, 5000, 6300, 8000, 10000, 12600, 15900, 20000

 

K-Stereo Ambiance Filters Boost (dB):

−12.0, −11.5, −11.0, −10.5, −10.0, −9.5, −9.0, −8.5, −8.0, −7.5, −7.0, −6.5, −6.0, −5.5, −5.0, −4.5, −4.0, −3.5, −3.0, − 2.5, −2.0, −1.5, −1.0, −0.5, 0.0, 0.5, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 7.5, 8.0, 8.5, 9.0, 9.5, 10.0, 10.5, 11.0, 11.5, 12.0

 

K-Stereo Ambiance Q:

0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0

 

Gains M-level, S-level, ch1 trim, ch2 trim, output gain (dB):

−∞, −92.0, −89.0, −86.0, −83.0, −80.0, −77.0, −74.0, −71.0, −68.0, −65.0, −62.0, −59.0, −56.0, −53.0, −50.0, −48.0, − 46.0, −44.0, −42.0, −40.0, −39.0, −38.0, −37.0, −36.0, −35.0, −34.0, −33.0, −32.0, −30.0, −29.5, −29.0, −28.5, − 28.0, −27.5, −27.0, −26.5, −26.0, −25.5, −25.0, −24.5, −24.0, −23.5, −23.0, −22.5, −22.0, −21.5, −21.0, −20.5, − 20.0, −19.5, −19.0, −18.5, −18.0, −17.5, −17.0, −16.5, −16.0, −15.5, −15.0, −14.5, −14.0, −13.5, −13.0, −12.5, − 12.0, −11.5, −11.0, −10.5, −10.0, −9.5, −9.0, −8.5, −8.0, −7.5, −7.0, −6.5, −6.0, −5.8, −5.6, −5.4, −5.2, −5.0, −4.8, − 4.6, −4.4, −4.2, −4.0, −3.8, −3.6, −3.4, −3.2, −3.0, −2.8, −2.6, −2.4, −2.2, −2.0, −1.8, −1.6, −1.4, −1.2, −1.0, −0.8, −0.6, −0.4, −0.2, 0.0, 0.5, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 7.5, 8.0, 8.5, 9.0, 9.5, 10.0

3 modules composent le DNA1 :

Le denoiser large bande est utilisé pour la restauration de documents anciens ou pour améliorer l’intelligibilité et le rapport signal/bruit de tout type de programmes. Le Declicker et Decraker sont utilisés sur de vieux enregistrements ou de vieux disques, ou pour retirer des clics numériques.

Le processeur K-Stéréo permet de redonner vie à des programmes restaurés, en augmentant les informations de salle ou d’ambiance, ou pour convertir des signaux mono en pseudo stéréo.

Le mode M/S peut être utilisé pour traiter indépendamment les composantes mono et stéréo d’un programme, par exemple pour enlever le bruit de fond d’un signal sans trop altérer la réverbération.

Manuel DNA1

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