Metafile Tags

Common to All Files

appVersion=20161201
fileCreateTime=2017-02-06T13:34:39

These are the local date and time on the recording machine.

fileName=C:/SGL_DATA/qqq1_g0_t0.nidq.bin

This is the original path to the binary file paired with this metadata file.

fileSHA1=B209BBB956A9F6371625C118D651DBE9AED4051D

This is a checksum calculated for the binary data. Use menu item Tools::Verify SHA1 to detect if the binary data have been altered since the file was first recorded.

fileSizeBytes=10144818

This should match what you see when you right-click on the binary file in the 'Windows File Explorer' and select 'Properties'. This is the 'Size' value, not the 'Size on disk' value.

fileTimeSecs=1.0

This is the span of the file data in seconds and is calculated as:

    fileTimeSecs = fileSizeBytes / xxSampleRate / nSavedChans / 2,
    where, xxSampleRate is the niSampleRate or imSampleRate
    recorded in the same metafile.
firstSample=779283

All acquired samples are assigned an index number; the first acquired during the run is sample 0. This value is the index number of the first sample recorded in this file.

gateMode=Immediate

Possible values are {Immediate, TCP}.

nSavedChans=257

The number of channels being saved to disk.

rmt_USERTYPE=USERDEFINED

When SpikeGLX is set as a Gate/Trigger server it can receive remote commands to start and stop gate and trigger intervals. It can also receive remote commands to insert custom metadata into saved files. Such tags are automatically prepended with 'rmt_' to distinguish them from built-in tags.

snsSaveChanSubset=2,4,8,12:150
snsSaveChanSubset=all

Two examples are shown above for snsSaveChanSubset. If any channels are NOT being saved the value is a printer-like list of channels that ARE saved. If ALL are saved, the value is 'all'.

syncSourceIdx=0

Type of pulser source {0=None, 1=NI, 2=Other}.

syncSourcePeriod=1.0

Measured period of the shared pulse train in seconds.

trigMode=Timed

Possible values are {Immediate, Timed, TTL, Spike, TCP}.

typeImEnabled=1

Count of imec probes enabled for this run.

typeNiEnabled=1

Whether nidq stream was enabled for this run {1=yes, 0=no}.

typeThis=nidq

Which stream type is described in this file.

userNotes=Line1\nLine2...

Blank lines in your text are each replaced with 'backslash-n'. The userNotes tag is thereby a single line in metafiles.

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

The Shank Map describes how electrodes are arranged on the probe. The first () entry is a header. Here, (1,2,96) indicates the probe has up to 1 shank with up to 2 columns and 96 rows. Note that these are maximum values that define a grid, but not all column and row combinations need be occupied. Each following electrode entry has four values:

  1. zero-based shank #,

  2. zero-based col #,

  3. zero-based row #,

  4. 0/1 flag indicating if the electrode should be drawn in the ShankView window, and if it should be considered in spatial average <S> calculations.

Note: There are electrode entries only for saved channels.

If Using Timed Trigger

trgTimIsHInf=false

Is the duration of the high cycle infinite (latched high)? If not trgTimTH sets the duration.

trgTimIsNInf=false

Is the count of high cycles infinite? If not, trgTimNH sets the count.

Note that infinite cycle counts or durations are terminated when either the current gate goes low or the run is stopped manually.

trgTimNH=1

This is the number of high-low cycles per gate window, unless overridden by trgTimIsNInf.

trgTimTH=1.0

This is the number of seconds of data to write, unless overridden by trgTimIsHInf.

trgTimTL=1.0

This is the number of seconds to wait between write-phases.

trgTimTL0=10.0

This is the number of seconds to wait from the start of a gate window, until starting the first high-phase (write-phase).

If Using TTL Trigger

trgTTLAIChan=192
trgTTLBit=0
trgTTLInarow=5

This is the count in consecutive samples that must also be high to confirm that a rising edge is real rather than noise. This is sometimes referred to as an "anti-bounce" feature.

trgTTLIsAnalog=true

If true, trgTTLAIChan specifies which analog channel in the stream will be tested for rising edges. If false, trgTTLBit specifies which bit of the 16-bit digital data words will be tested. The digital data words are the last words in each timepoint. The bits within are arranged like this:

[analog0][analog1]...[analogN][bit15..bit0][bit31..bit16]...[digitalN].

trgTTLIsNInf=true

Is the count of high cycles infinite? If not, trgTTLNH sets the count.

Note that infinite cycle counts or durations are terminated when either the current gate goes low or the run is stopped manually.

trgTTLMarginS=1.0

This is the number of seconds to add both before and after the peri-event interval to provide expanded context.

trgTTLMode=0

Once a rising edge is detected, the mode controls how the length of the high-phase (file-writing phase) is determined.

Possible values: {0=Latch high, 1=Timed high, 2=Follow TTL}.

trgTTLNH=10

This is the count of writing cycles to execute per gate window, unless overridden by trgTTLIsNInf.

trgTTLRefractS=0.5

This is the minimum number of seconds to wait since the last rising-edge until the rising-edge detector may be re-armed.

trgTTLStream=nidq
trgTTLTH=0.5

This is the programmed high duration if trgTTLMode=1.

trgTTLThresh=2.0

This is the voltage threshold used for testing analog-type channels.

If Using Spike Trigger

trgSpikeAIChan=4
trgSpikeInarow=5

This is the count in consecutive samples that must also be low to confirm that a falling edge is a real spike rather than noise.

trgSpikeIsNInf=false

Is the count of spikes to detect infinite? If not, trgSpikeNS sets the count.

Note that infinite spike counts are terminated when either the current gate goes low or the run is stopped manually.

trgSpikeNS=10

Maximum number of spikes to detect (files to write) per gate window.

trgSpikePeriEvtS=1.0

This is the number of seconds to add both before and after the peri-event interval to provide expanded context.

trgSpikeRefractS=0.5

This is the minimum number of seconds to wait since the last spike until the falling-edge detector may be re-armed.

trgSpikeStream=nidq
trgSpikeThresh=-100e-6

This trigger defines a spike as a negative-going threshold crossing.

NIDQ

acqMnMaXaDw=192,64,0,1

This is the count of channels, of each type, in each timepoint, at acquisition time.

niAiRangeMax=-2.5

Convert from 16-bit analog values (i) to voltages (V) as follows:

V = i * Vmax / Imax / gain.

For nidq data:

niAiRangeMin=2.5
niAiTermination=Default
niClockSource=Whisper : 25000

Name of the device generating the sample clock and its programmed rate.

niClockLine1=PFI2
niDev1=Dev1
niDev1ProductName=FakeDAQ
niMAChans1=6:7
niMAGain=1.0
niMNChans1=0:5
niMNGain=200.0
niMuxFactor=32
niSampRate=25000
niStartEnable=true
niStartLine=Dev1/port0/line0
niXAChans1=
niXDBytes1=1

This is the number of bytes needed to hold the lines specified by niXDChans1. The lines acquired from the second device (if used) start at offset: 8 * niXDBytes1.

niXDChans1=1

This is a printer-like list of NI-DAQ line indices. For example, if your NI device was named 'Fred' and if niXDChans1=2:3, we would acquire from lines {Fred/line2, Fred/line3}.

snsMnMaXaDw=192,64,0,1

This is the count of channels, of each type, in each timepoint, as stored in the binary file.

syncNiChan=0

The bit or channel number (in the acquired stream).

syncNiChanType=0

Values are {0=Digital bit, 1=Analog channel}.

syncNiThresh=3.0

The crossing threshold (V) for an analog channel.

~snsChanMap=(6,2,32,0,1)(MN0C0;0:0)(MN0C1;1:1)(MN0C2;2:2)(MN0C3;3:3)(MN0C4;4:4)(MN0C5;5:5)(MN0C6;6:6)(MN0C7;7:7)(MN0C8;8:8)(MN0C9;9:9)(MN0C10;10:10)(MN0C11;11:11)(MN0C12;12:12)(MN0C13;13:13)(MN0C14;14:14)(MN0C15;15:15)(MN0C16;16:16)(MN0C17;17:17)(MN0C18;18:18)(MN0C19;19:19)(MN0C20;20:20)(MN0C21;21:21)(MN0C22;22:22)(MN0C23;23:23)(MN0C24;24:24)(MN0C25;25:25)(MN0C26;26:26)(MN0C27;27:27)(MN0C28;28:28)(MN0C29;29:29)(MN0C30;30:30)(MN0C31;31:31)(MN1C0;32:32)(MN1C1;33:33)(MN1C2;34:34)(MN1C3;35:35)(MN1C4;36:36)(MN1C5;37:37)(MN1C6;38:38)(MN1C7;39:39)(MN1C8;40:40)(MN1C9;41:41)(MN1C10;42:42)(MN1C11;43:43)(MN1C12;44:44)(MN1C13;45:45)(MN1C14;46:46)(MN1C15;47:47)(MN1C16;48:48)(MN1C17;49:49)(MN1C18;50:50)(MN1C19;51:51)(MN1C20;52:52)(MN1C21;53:53)(MN1C22;54:54)(MN1C23;55:55)(MN1C24;56:56)(MN1C25;57:57)(MN1C26;58:58)(MN1C27;59:59)(MN1C28;60:60)(MN1C29;61:61)(MN1C30;62:62)(MN1C31;63:63)(MN2C0;64:64)(MN2C1;65:65)(MN2C2;66:66)(MN2C3;67:67)(MN2C4;68:68)(MN2C5;69:69)(MN2C6;70:70)(MN2C7;71:71)(MN2C8;72:72)(MN2C9;73:73)(MN2C10;74:74)(MN2C11;75:75)(MN2C12;76:76)(MN2C13;77:77)(MN2C14;78:78)(MN2C15;79:79)(MN2C16;80:80)(MN2C17;81:81)(MN2C18;82:82)(MN2C19;83:83)(MN2C20;84:84)(MN2C21;85:85)(MN2C22;86:86)(MN2C23;87:87)(MN2C24;88:88)(MN2C25;89:89)(MN2C26;90:90)(MN2C27;91:91)(MN2C28;92:92)(MN2C29;93:93)(MN2C30;94:94)(MN2C31;95:95)(MN3C0;96:96)(MN3C1;97:97)(MN3C2;98:98)(MN3C3;99:99)(MN3C4;100:100)(MN3C5;101:101)(MN3C6;102:102)(MN3C7;103:103)(MN3C8;104:104)(MN3C9;105:105)(MN3C10;106:106)(MN3C11;107:107)(MN3C12;108:108)(MN3C13;109:109)(MN3C14;110:110)(MN3C15;111:111)(MN3C16;112:112)(MN3C17;113:113)(MN3C18;114:114)(MN3C19;115:115)(MN3C20;116:116)(MN3C21;117:117)(MN3C22;118:118)(MN3C23;119:119)(MN3C24;120:120)(MN3C25;121:121)(MN3C26;122:122)(MN3C27;123:123)(MN3C28;124:124)(MN3C29;125:125)(MN3C30;126:126)(MN3C31;127:127)(MN4C0;128:128)(MN4C1;129:129)(MN4C2;130:130)(MN4C3;131:131)(MN4C4;132:132)(MN4C5;133:133)(MN4C6;134:134)(MN4C7;135:135)(MN4C8;136:136)(MN4C9;137:137)(MN4C10;138:138)(MN4C11;139:139)(MN4C12;140:140)(MN4C13;141:141)(MN4C14;142:142)(MN4C15;143:143)(MN4C16;144:144)(MN4C17;145:145)(MN4C18;146:146)(MN4C19;147:147)(MN4C20;148:148)(MN4C21;149:149)(MN4C22;150:150)(MN4C23;151:151)(MN4C24;152:152)(MN4C25;153:153)(MN4C26;154:154)(MN4C27;155:155)(MN4C28;156:156)(MN4C29;157:157)(MN4C30;158:158)(MN4C31;159:159)(MN5C0;160:160)(MN5C1;161:161)(MN5C2;162:162)(MN5C3;163:163)(MN5C4;164:164)(MN5C5;165:165)(MN5C6;166:166)(MN5C7;167:167)(MN5C8;168:168)(MN5C9;169:169)(MN5C10;170:170)(MN5C11;171:171)(MN5C12;172:172)(MN5C13;173:173)(MN5C14;174:174)(MN5C15;175:175)(MN5C16;176:176)(MN5C17;177:177)(MN5C18;178:178)(MN5C19;179:179)(MN5C20;180:180)(MN5C21;181:181)(MN5C22;182:182)(MN5C23;183:183)(MN5C24;184:184)(MN5C25;185:185)(MN5C26;186:186)(MN5C27;187:187)(MN5C28;188:188)(MN5C29;189:189)(MN5C30;190:190)(MN5C31;191:191)(MA0C0;192:192)(MA0C1;193:193)(MA0C2;194:194)(MA0C3;195:195)(MA0C4;196:196)(MA0C5;197:197)(MA0C6;198:198)(MA0C7;199:199)(MA0C8;200:200)(MA0C9;201:201)(MA0C10;202:202)(MA0C11;203:203)(MA0C12;204:204)(MA0C13;205:205)(MA0C14;206:206)(MA0C15;207:207)(MA0C16;208:208)(MA0C17;209:209)(MA0C18;210:210)(MA0C19;211:211)(MA0C20;212:212)(MA0C21;213:213)(MA0C22;214:214)(MA0C23;215:215)(MA0C24;216:216)(MA0C25;217:217)(MA0C26;218:218)(MA0C27;219:219)(MA0C28;220:220)(MA0C29;221:221)(MA0C30;222:222)(MA0C31;223:223)(MA1C0;224:224)(MA1C1;225:225)(MA1C2;226:226)(MA1C3;227:227)(MA1C4;228:228)(MA1C5;229:229)(MA1C6;230:230)(MA1C7;231:231)(MA1C8;232:232)(MA1C9;233:233)(MA1C10;234:234)(MA1C11;235:235)(MA1C12;236:236)(MA1C13;237:237)(MA1C14;238:238)(MA1C15;239:239)(MA1C16;240:240)(MA1C17;241:241)(MA1C18;242:242)(MA1C19;243:243)(MA1C20;244:244)(MA1C21;245:245)(MA1C22;246:246)(MA1C23;247:247)(MA1C24;248:248)(MA1C25;249:249)(MA1C26;250:250)(MA1C27;251:251)(MA1C28;252:252)(MA1C29;253:253)(MA1C30;254:254)(MA1C31;255:255)(XD0;256:256)

The channel map describes the order of graphs in SpikeGLX displays. The header for the nidq stream, here (6,2,32,0,1), indicates there are:

Each subsequent entry in the map has two fields, (:)-separated:

Note: There are map entries only for saved channels.

If Using 2nd NIDQ Card

niClockLine2
niDev2
niDev2ProductName
niDualDevMode=true
niMAChans2
niMNChans2
niXAChans2
niXDBytes2
niXDChans2

IMEC

acqApLfSy=384,384,1

This is the count of channels, of each type, in each timepoint, at acquisition time.

imAiRangeMax=0.6

Convert from 16-bit analog values (i) to voltages (V) as follows:

V = i * Vmax / Imax / gain.

For imec data:

imAiRangeMin=-0.6
imDatApi=0.0

This is the Imec API version number: major.minor.

imDatBsc_fw=0.0

This is the BSC firmware version number: major.minor.

imDatBsc_hw=0.0

This is the BSC hardware version number: major.minor.

imDatBsc_pn=NP2_BSC_10

This is the BSC part number.

imDatBsc_sn=0

This is the BSC serial number.

imDatBs_fw=0.0

This is the BS (Xilinx) firmware version number: major.minor.

imDatFx_hw=0.0

This is the Flex hardware version number: major.minor.

imDatHs_fw=0.0

This is the HS firmware version number: major.minor.

imDatHs_pn=NP2_HS_10

This is the HS part number.

imDatHs_sn=0

This is the HS serial number.

imDatPrb_pn=NP2_PRB_10

This is the probe part number.

imDatPrb_sn=0

This is the probe serial number.

imDatPrb_type=0

This is the probe type.

imLEDEnable=false
imRoFile=

This is a path to your custom Imec Readout Table (imRo) file. If you elect default settings no file is needed. The active table content is stored as tag ~imroTbl whether custom or default.

imSampRate=30000
imSkipCal=false

ADC and gain calibration steps can be bypassed if for some reason you don't have the calibration files for your probe.

imStdby=0:12,45

These channels had been placed in stand-by mode, which means their analog amplifiers were switched off. Stand-by channels are still read from the hardware and stored in the data stream. The only reason to set stand-by mode is to reduce noise/crosstalk in the system (may not be needed in commercial system).

imTrgRising=true

Selects whether external trigger detects a rising or falling edge.

imTrgSource=0

Selects the type of trigger that starts the run: {0=software, 1=SMA connector, 2-17=BSC pins 0-15, 18=PXI}.

snsApLfSy=384,0,1

This is the count of channels, of each type, in each timepoint, as stored in the binary file.

syncImChan=0

The bit or channel number (in the acquired stream).

syncImChanType=0

Values are {0=Digital bit, 1=Analog channel}.

syncImThresh=3.0

The crossing threshold (V) for an analog channel.

~imroTbl=(0,384)(0 0 0 500 250 1)(1 0 0 500 250 1)(2 0 0 500 250 1)(3 0 0 500 250 1)(4 0 0 500 250 1)(5 0 0 500 250 1)(6 0 0 500 250 1)(7 0 0 500 250 1)(8 0 0 500 250 1)(9 0 0 500 250 1)(10 0 0 500 250 1)(11 0 0 500 250 1)(12 0 0 500 250 1)(13 0 0 500 250 1)(14 0 0 500 250 1)(15 0 0 500 250 1)(16 0 0 500 250 1)(17 0 0 500 250 1)(18 0 0 500 250 1)(19 0 0 500 250 1)(20 0 0 500 250 1)(21 0 0 500 250 1)(22 0 0 500 250 1)(23 0 0 500 250 1)(24 0 0 500 250 1)(25 0 0 500 250 1)(26 0 0 500 250 1)(27 0 0 500 250 1)(28 0 0 500 250 1)(29 0 0 500 250 1)(30 0 0 500 250 1)(31 0 0 500 250 1)(32 0 0 500 250 1)(33 0 0 500 250 1)(34 0 0 500 250 1)(35 0 0 500 250 1)(36 0 0 500 250 1)(37 0 0 500 250 1)(38 0 0 500 250 1)(39 0 0 500 250 1)(40 0 0 500 250 1)(41 0 0 500 250 1)(42 0 0 500 250 1)(43 0 0 500 250 1)(44 0 0 500 250 1)(45 0 0 500 250 1)(46 0 0 500 250 1)(47 0 0 500 250 1)(48 0 0 500 250 1)(49 0 0 500 250 1)(50 0 0 500 250 1)(51 0 0 500 250 1)(52 0 0 500 250 1)(53 0 0 500 250 1)(54 0 0 500 250 1)(55 0 0 500 250 1)(56 0 0 500 250 1)(57 0 0 500 250 1)(58 0 0 500 250 1)(59 0 0 500 250 1)(60 0 0 500 250 1)(61 0 0 500 250 1)(62 0 0 500 250 1)(63 0 0 500 250 1)(64 0 0 500 250 1)(65 0 0 500 250 1)(66 0 0 500 250 1)(67 0 0 500 250 1)(68 0 0 500 250 1)(69 0 0 500 250 1)(70 0 0 500 250 1)(71 0 0 500 250 1)(72 0 0 500 250 1)(73 0 0 500 250 1)(74 0 0 500 250 1)(75 0 0 500 250 1)(76 0 0 500 250 1)(77 0 0 500 250 1)(78 0 0 500 250 1)(79 0 0 500 250 1)(80 0 0 500 250 1)(81 0 0 500 250 1)(82 0 0 500 250 1)(83 0 0 500 250 1)(84 0 0 500 250 1)(85 0 0 500 250 1)(86 0 0 500 250 1)(87 0 0 500 250 1)(88 0 0 500 250 1)(89 0 0 500 250 1)(90 0 0 500 250 1)(91 0 0 500 250 1)(92 0 0 500 250 1)(93 0 0 500 250 1)(94 0 0 500 250 1)(95 0 0 500 250 1)(96 0 0 500 250 1)(97 0 0 500 250 1)(98 0 0 500 250 1)(99 0 0 500 250 1)(100 0 0 500 250 1)(101 0 0 500 250 1)(102 0 0 500 250 1)(103 0 0 500 250 1)(104 0 0 500 250 1)(105 0 0 500 250 1)(106 0 0 500 250 1)(107 0 0 500 250 1)(108 0 0 500 250 1)(109 0 0 500 250 1)(110 0 0 500 250 1)(111 0 0 500 250 1)(112 0 0 500 250 1)(113 0 0 500 250 1)(114 0 0 500 250 1)(115 0 0 500 250 1)(116 0 0 500 250 1)(117 0 0 500 250 1)(118 0 0 500 250 1)(119 0 0 500 250 1)(120 0 0 500 250 1)(121 0 0 500 250 1)(122 0 0 500 250 1)(123 0 0 500 250 1)(124 0 0 500 250 1)(125 0 0 500 250 1)(126 0 0 500 250 1)(127 0 0 500 250 1)(128 0 0 500 250 1)(129 0 0 500 250 1)(130 0 0 500 250 1)(131 0 0 500 250 1)(132 0 0 500 250 1)(133 0 0 500 250 1)(134 0 0 500 250 1)(135 0 0 500 250 1)(136 0 0 500 250 1)(137 0 0 500 250 1)(138 0 0 500 250 1)(139 0 0 500 250 1)(140 0 0 500 250 1)(141 0 0 500 250 1)(142 0 0 500 250 1)(143 0 0 500 250 1)(144 0 0 500 250 1)(145 0 0 500 250 1)(146 0 0 500 250 1)(147 0 0 500 250 1)(148 0 0 500 250 1)(149 0 0 500 250 1)(150 0 0 500 250 1)(151 0 0 500 250 1)(152 0 0 500 250 1)(153 0 0 500 250 1)(154 0 0 500 250 1)(155 0 0 500 250 1)(156 0 0 500 250 1)(157 0 0 500 250 1)(158 0 0 500 250 1)(159 0 0 500 250 1)(160 0 0 500 250 1)(161 0 0 500 250 1)(162 0 0 500 250 1)(163 0 0 500 250 1)(164 0 0 500 250 1)(165 0 0 500 250 1)(166 0 0 500 250 1)(167 0 0 500 250 1)(168 0 0 500 250 1)(169 0 0 500 250 1)(170 0 0 500 250 1)(171 0 0 500 250 1)(172 0 0 500 250 1)(173 0 0 500 250 1)(174 0 0 500 250 1)(175 0 0 500 250 1)(176 0 0 500 250 1)(177 0 0 500 250 1)(178 0 0 500 250 1)(179 0 0 500 250 1)(180 0 0 500 250 1)(181 0 0 500 250 1)(182 0 0 500 250 1)(183 0 0 500 250 1)(184 0 0 500 250 1)(185 0 0 500 250 1)(186 0 0 500 250 1)(187 0 0 500 250 1)(188 0 0 500 250 1)(189 0 0 500 250 1)(190 0 0 500 250 1)(191 0 0 500 250 1)(192 0 0 500 250 1)(193 0 0 500 250 1)(194 0 0 500 250 1)(195 0 0 500 250 1)(196 0 0 500 250 1)(197 0 0 500 250 1)(198 0 0 500 250 1)(199 0 0 500 250 1)(200 0 0 500 250 1)(201 0 0 500 250 1)(202 0 0 500 250 1)(203 0 0 500 250 1)(204 0 0 500 250 1)(205 0 0 500 250 1)(206 0 0 500 250 1)(207 0 0 500 250 1)(208 0 0 500 250 1)(209 0 0 500 250 1)(210 0 0 500 250 1)(211 0 0 500 250 1)(212 0 0 500 250 1)(213 0 0 500 250 1)(214 0 0 500 250 1)(215 0 0 500 250 1)(216 0 0 500 250 1)(217 0 0 500 250 1)(218 0 0 500 250 1)(219 0 0 500 250 1)(220 0 0 500 250 1)(221 0 0 500 250 1)(222 0 0 500 250 1)(223 0 0 500 250 1)(224 0 0 500 250 1)(225 0 0 500 250 1)(226 0 0 500 250 1)(227 0 0 500 250 1)(228 0 0 500 250 1)(229 0 0 500 250 1)(230 0 0 500 250 1)(231 0 0 500 250 1)(232 0 0 500 250 1)(233 0 0 500 250 1)(234 0 0 500 250 1)(235 0 0 500 250 1)(236 0 0 500 250 1)(237 0 0 500 250 1)(238 0 0 500 250 1)(239 0 0 500 250 1)(240 0 0 500 250 1)(241 0 0 500 250 1)(242 0 0 500 250 1)(243 0 0 500 250 1)(244 0 0 500 250 1)(245 0 0 500 250 1)(246 0 0 500 250 1)(247 0 0 500 250 1)(248 0 0 500 250 1)(249 0 0 500 250 1)(250 0 0 500 250 1)(251 0 0 500 250 1)(252 0 0 500 250 1)(253 0 0 500 250 1)(254 0 0 500 250 1)(255 0 0 500 250 1)(256 0 0 500 250 1)(257 0 0 500 250 1)(258 0 0 500 250 1)(259 0 0 500 250 1)(260 0 0 500 250 1)(261 0 0 500 250 1)(262 0 0 500 250 1)(263 0 0 500 250 1)(264 0 0 500 250 1)(265 0 0 500 250 1)(266 0 0 500 250 1)(267 0 0 500 250 1)(268 0 0 500 250 1)(269 0 0 500 250 1)(270 0 0 500 250 1)(271 0 0 500 250 1)(272 0 0 500 250 1)(273 0 0 500 250 1)(274 0 0 500 250 1)(275 0 0 500 250 1)(276 0 0 500 250 1)(277 0 0 500 250 1)(278 0 0 500 250 1)(279 0 0 500 250 1)(280 0 0 500 250 1)(281 0 0 500 250 1)(282 0 0 500 250 1)(283 0 0 500 250 1)(284 0 0 500 250 1)(285 0 0 500 250 1)(286 0 0 500 250 1)(287 0 0 500 250 1)(288 0 0 500 250 1)(289 0 0 500 250 1)(290 0 0 500 250 1)(291 0 0 500 250 1)(292 0 0 500 250 1)(293 0 0 500 250 1)(294 0 0 500 250 1)(295 0 0 500 250 1)(296 0 0 500 250 1)(297 0 0 500 250 1)(298 0 0 500 250 1)(299 0 0 500 250 1)(300 0 0 500 250 1)(301 0 0 500 250 1)(302 0 0 500 250 1)(303 0 0 500 250 1)(304 0 0 500 250 1)(305 0 0 500 250 1)(306 0 0 500 250 1)(307 0 0 500 250 1)(308 0 0 500 250 1)(309 0 0 500 250 1)(310 0 0 500 250 1)(311 0 0 500 250 1)(312 0 0 500 250 1)(313 0 0 500 250 1)(314 0 0 500 250 1)(315 0 0 500 250 1)(316 0 0 500 250 1)(317 0 0 500 250 1)(318 0 0 500 250 1)(319 0 0 500 250 1)(320 0 0 500 250 1)(321 0 0 500 250 1)(322 0 0 500 250 1)(323 0 0 500 250 1)(324 0 0 500 250 1)(325 0 0 500 250 1)(326 0 0 500 250 1)(327 0 0 500 250 1)(328 0 0 500 250 1)(329 0 0 500 250 1)(330 0 0 500 250 1)(331 0 0 500 250 1)(332 0 0 500 250 1)(333 0 0 500 250 1)(334 0 0 500 250 1)(335 0 0 500 250 1)(336 0 0 500 250 1)(337 0 0 500 250 1)(338 0 0 500 250 1)(339 0 0 500 250 1)(340 0 0 500 250 1)(341 0 0 500 250 1)(342 0 0 500 250 1)(343 0 0 500 250 1)(344 0 0 500 250 1)(345 0 0 500 250 1)(346 0 0 500 250 1)(347 0 0 500 250 1)(348 0 0 500 250 1)(349 0 0 500 250 1)(350 0 0 500 250 1)(351 0 0 500 250 1)(352 0 0 500 250 1)(353 0 0 500 250 1)(354 0 0 500 250 1)(355 0 0 500 250 1)(356 0 0 500 250 1)(357 0 0 500 250 1)(358 0 0 500 250 1)(359 0 0 500 250 1)(360 0 0 500 250 1)(361 0 0 500 250 1)(362 0 0 500 250 1)(363 0 0 500 250 1)(364 0 0 500 250 1)(365 0 0 500 250 1)(366 0 0 500 250 1)(367 0 0 500 250 1)(368 0 0 500 250 1)(369 0 0 500 250 1)(370 0 0 500 250 1)(371 0 0 500 250 1)(372 0 0 500 250 1)(373 0 0 500 250 1)(374 0 0 500 250 1)(375 0 0 500 250 1)(376 0 0 500 250 1)(377 0 0 500 250 1)(378 0 0 500 250 1)(379 0 0 500 250 1)(380 0 0 500 250 1)(381 0 0 500 250 1)(382 0 0 500 250 1)(383 0 0 500 250 1)

The first entry of the Imec Readout Table (imRo) is a header. Here, (0,384) indicates probe type and number of channels. Each subsequent channel entry has six values:

The reference ID values are {0=ext, 1=tip, 2=pad-192, 3=pad-576, 4=pad-960}.

Note: Unlike snsShankMap and snsChanMap which store entries only for saved channels, the imroTbl always has entries for all acquired channels.

~snsChanMap=(384,384,1)(AP0;0:0)(AP1;1:1)(AP2;2:2)(AP3;3:3)(AP4;4:4)(AP5;5:5)(AP6;6:6)(AP7;7:7)(AP8;8:8)(AP9;9:9)(AP10;10:10)(AP11;11:11)(AP12;12:12)(AP13;13:13)(AP14;14:14)(AP15;15:15)(AP16;16:16)(AP17;17:17)(AP18;18:18)(AP19;19:19)(AP20;20:20)(AP21;21:21)(AP22;22:22)(AP23;23:23)(AP24;24:24)(AP25;25:25)(AP26;26:26)(AP27;27:27)(AP28;28:28)(AP29;29:29)(AP30;30:30)(AP31;31:31)(AP32;32:32)(AP33;33:33)(AP34;34:34)(AP35;35:35)(AP36;36:36)(AP37;37:37)(AP38;38:38)(AP39;39:39)(AP40;40:40)(AP41;41:41)(AP42;42:42)(AP43;43:43)(AP44;44:44)(AP45;45:45)(AP46;46:46)(AP47;47:47)(AP48;48:48)(AP49;49:49)(AP50;50:50)(AP51;51:51)(AP52;52:52)(AP53;53:53)(AP54;54:54)(AP55;55:55)(AP56;56:56)(AP57;57:57)(AP58;58:58)(AP59;59:59)(AP60;60:60)(AP61;61:61)(AP62;62:62)(AP63;63:63)(AP64;64:64)(AP65;65:65)(AP66;66:66)(AP67;67:67)(AP68;68:68)(AP69;69:69)(AP70;70:70)(AP71;71:71)(AP72;72:72)(AP73;73:73)(AP74;74:74)(AP75;75:75)(AP76;76:76)(AP77;77:77)(AP78;78:78)(AP79;79:79)(AP80;80:80)(AP81;81:81)(AP82;82:82)(AP83;83:83)(AP84;84:84)(AP85;85:85)(AP86;86:86)(AP87;87:87)(AP88;88:88)(AP89;89:89)(AP90;90:90)(AP91;91:91)(AP92;92:92)(AP93;93:93)(AP94;94:94)(AP95;95:95)(AP96;96:96)(AP97;97:97)(AP98;98:98)(AP99;99:99)(AP100;100:100)(AP101;101:101)(AP102;102:102)(AP103;103:103)(AP104;104:104)(AP105;105:105)(AP106;106:106)(AP107;107:107)(AP108;108:108)(AP109;109:109)(AP110;110:110)(AP111;111:111)(AP112;112:112)(AP113;113:113)(AP114;114:114)(AP115;115:115)(AP116;116:116)(AP117;117:117)(AP118;118:118)(AP119;119:119)(AP120;120:120)(AP121;121:121)(AP122;122:122)(AP123;123:123)(AP124;124:124)(AP125;125:125)(AP126;126:126)(AP127;127:127)(AP128;128:128)(AP129;129:129)(AP130;130:130)(AP131;131:131)(AP132;132:132)(AP133;133:133)(AP134;134:134)(AP135;135:135)(AP136;136:136)(AP137;137:137)(AP138;138:138)(AP139;139:139)(AP140;140:140)(AP141;141:141)(AP142;142:142)(AP143;143:143)(AP144;144:144)(AP145;145:145)(AP146;146:146)(AP147;147:147)(AP148;148:148)(AP149;149:149)(AP150;150:150)(AP151;151:151)(AP152;152:152)(AP153;153:153)(AP154;154:154)(AP155;155:155)(AP156;156:156)(AP157;157:157)(AP158;158:158)(AP159;159:159)(AP160;160:160)(AP161;161:161)(AP162;162:162)(AP163;163:163)(AP164;164:164)(AP165;165:165)(AP166;166:166)(AP167;167:167)(AP168;168:168)(AP169;169:169)(AP170;170:170)(AP171;171:171)(AP172;172:172)(AP173;173:173)(AP174;174:174)(AP175;175:175)(AP176;176:176)(AP177;177:177)(AP178;178:178)(AP179;179:179)(AP180;180:180)(AP181;181:181)(AP182;182:182)(AP183;183:183)(AP184;184:184)(AP185;185:185)(AP186;186:186)(AP187;187:187)(AP188;188:188)(AP189;189:189)(AP190;190:190)(AP191;191:191)(AP192;192:192)(AP193;193:193)(AP194;194:194)(AP195;195:195)(AP196;196:196)(AP197;197:197)(AP198;198:198)(AP199;199:199)(AP200;200:200)(AP201;201:201)(AP202;202:202)(AP203;203:203)(AP204;204:204)(AP205;205:205)(AP206;206:206)(AP207;207:207)(AP208;208:208)(AP209;209:209)(AP210;210:210)(AP211;211:211)(AP212;212:212)(AP213;213:213)(AP214;214:214)(AP215;215:215)(AP216;216:216)(AP217;217:217)(AP218;218:218)(AP219;219:219)(AP220;220:220)(AP221;221:221)(AP222;222:222)(AP223;223:223)(AP224;224:224)(AP225;225:225)(AP226;226:226)(AP227;227:227)(AP228;228:228)(AP229;229:229)(AP230;230:230)(AP231;231:231)(AP232;232:232)(AP233;233:233)(AP234;234:234)(AP235;235:235)(AP236;236:236)(AP237;237:237)(AP238;238:238)(AP239;239:239)(AP240;240:240)(AP241;241:241)(AP242;242:242)(AP243;243:243)(AP244;244:244)(AP245;245:245)(AP246;246:246)(AP247;247:247)(AP248;248:248)(AP249;249:249)(AP250;250:250)(AP251;251:251)(AP252;252:252)(AP253;253:253)(AP254;254:254)(AP255;255:255)(AP256;256:256)(AP257;257:257)(AP258;258:258)(AP259;259:259)(AP260;260:260)(AP261;261:261)(AP262;262:262)(AP263;263:263)(AP264;264:264)(AP265;265:265)(AP266;266:266)(AP267;267:267)(AP268;268:268)(AP269;269:269)(AP270;270:270)(AP271;271:271)(AP272;272:272)(AP273;273:273)(AP274;274:274)(AP275;275:275)(AP276;276:276)(AP277;277:277)(AP278;278:278)(AP279;279:279)(AP280;280:280)(AP281;281:281)(AP282;282:282)(AP283;283:283)(AP284;284:284)(AP285;285:285)(AP286;286:286)(AP287;287:287)(AP288;288:288)(AP289;289:289)(AP290;290:290)(AP291;291:291)(AP292;292:292)(AP293;293:293)(AP294;294:294)(AP295;295:295)(AP296;296:296)(AP297;297:297)(AP298;298:298)(AP299;299:299)(AP300;300:300)(AP301;301:301)(AP302;302:302)(AP303;303:303)(AP304;304:304)(AP305;305:305)(AP306;306:306)(AP307;307:307)(AP308;308:308)(AP309;309:309)(AP310;310:310)(AP311;311:311)(AP312;312:312)(AP313;313:313)(AP314;314:314)(AP315;315:315)(AP316;316:316)(AP317;317:317)(AP318;318:318)(AP319;319:319)(AP320;320:320)(AP321;321:321)(AP322;322:322)(AP323;323:323)(AP324;324:324)(AP325;325:325)(AP326;326:326)(AP327;327:327)(AP328;328:328)(AP329;329:329)(AP330;330:330)(AP331;331:331)(AP332;332:332)(AP333;333:333)(AP334;334:334)(AP335;335:335)(AP336;336:336)(AP337;337:337)(AP338;338:338)(AP339;339:339)(AP340;340:340)(AP341;341:341)(AP342;342:342)(AP343;343:343)(AP344;344:344)(AP345;345:345)(AP346;346:346)(AP347;347:347)(AP348;348:348)(AP349;349:349)(AP350;350:350)(AP351;351:351)(AP352;352:352)(AP353;353:353)(AP354;354:354)(AP355;355:355)(AP356;356:356)(AP357;357:357)(AP358;358:358)(AP359;359:359)(AP360;360:360)(AP361;361:361)(AP362;362:362)(AP363;363:363)(AP364;364:364)(AP365;365:365)(AP366;366:366)(AP367;367:367)(AP368;368:368)(AP369;369:369)(AP370;370:370)(AP371;371:371)(AP372;372:372)(AP373;373:373)(AP374;374:374)(AP375;375:375)(AP376;376:376)(AP377;377:377)(AP378;378:378)(AP379;379:379)(AP380;380:380)(AP381;381:381)(AP382;382:382)(AP383;383:383)(SY0;768:768)

The channel map describes the order of graphs in SpikeGLX displays. The header for the imec stream, here (384,384,1), indicates there are:

Each subsequent entry in the map has two fields, (:)-separated:

Note: There are map entries only for saved channels.

fin