The 2L Immersive Channel Identification 7.1.4 Test Files identify the channels in a 7.1.4 Channel Dolby Atmos TrueHD, Auro3D and DTS:X Immersive Audio MKV playback system. It is available at NativeDSD for $4.99.

The voice guides you quickly around the sphere. Then each channel play a range of sinus tones to verify level and bandwidth of reproduction. These test tones also serve to check transparency and properties of the codecs, including fold-down and headphone virtualization.

The tones start at 30Hz and ascend in octaves: 30 – 60 – 120 – 240 – 480 – 960 – 1.920 – 3.840 – 7.680 – 15.360

Channel order within interleaved WAV:
1: L
2: R
3: C
4: Lfe
5: Ls (side/surround)
6: Rs (side/surround)
7: Lrs (rear/back)
8: Rrs (rear/back)
9: Ltf (height front)
10: Rtf (height front)
11: Ltr (height rear)
12: Rtr (height rear)

If your immersive speaker layout is 5.1.4 then please omit/mute channel 5 and 6 from these files. If your immersive speaker layout is 5.1.2 then please also omit/mute channel 11 and 12 from these files.