NTi Audio XL2 Sound Level Meter - Manual (Page 48)

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Sound Level Meter
Wav-File Recording
The XL2 records a wav-file of the measured input signal and
stores it on the SD Card. The available formats are:
Compressed • (default, using ADPCM compression). A new
wav-file is started automatically after 12 hours of recording
(typical maximum wav-file size = 512 MByte)
Compressed+AGC
• , compressed with automated gain con-
trol. The gain control increases the level of low-level signals,
so that the wav-file is well-leveled during playback on the
PC.
24Bit_48kHz
• , linear wav-file logging in 24 bit, 48kHz resolu-
tion with the optional Extended Acoustic Pack. A new wav-
file is started automatically after 1 hour of recording (typical
maximum wav-file size = 512 MByte)
Broadcast Wave Format BWF
The XL2 stores date and time of the record-
ing within the wav-file (according to EBU TECH
3285). This information is available through
professional audio/video tools typically used in
broadcast.
Sample name of wav-file:
1
MyTest_SLM_000_Audio_FS133.0dB(PK)_00.wav
2 3 4 5
1 MyTest
File name defined by user.
2 SLM
Measurement function.
3 000
Automatically incrementing file number.
4 Audio_FS133.0dB(PK)
Audio file with full scale peak level. In case of a Com-
pressed + AGC recording, the file name reads “AGC”; this
file contains corrected level information only.
5 00
For wav-file recording over longer periods, the XL2 splits
the audio data into individual wav-files with about 500 MB
(compressed audio: 12 hours; linear: 1 hour), keeping the
file size small for easier handling on the PC. The number
5 increments for each successive wav-file.