I don't know. Audacity does it.

DW handles all the data as 64-bit floating point internally. That’s how it’s saved to a file, to avoid truncation, dithering and clipping. You can record and save a stereo file, just pick stereo or L+R in the channel selector.

I was asking pkane :-) We have an answer from him, I will retry and post

Stereo file will still be 64-bit? Or will save to 24-bit?

I can cope with 64 bit although it is an overkill (theoretical quantization noise RMS level -401 dBFS ).

It'll record 64-bit floating point stereo file, and save it as such in WAV format.

It's actually a bit less, since IEEE 64-bit floating point has about 54 bits of precision, which is about -325 dBFS

For DeltaWave, this was important as it was designed for examining minute differences between any two waveforms, including those generated by filters, different formats, and, those claimed to be "audible" by some respected designers at or below the -300dBFS noise floor

Maybe add an option to export to 24-bit? To save Didier hard disk space lol

Regarding -300dBFS - bloody Bob is still at it ! :-)

Behringer UMC404HD

Downloadlink - 0.5dB

Downloadlink - 6dB

Behringer UMC404HD.wav: -312.03 µs, 0.5730 dB (L), 0.5603 dB (R), -43.8820 dBFS (L), -43.7428 dBFS (R)

Behringer UMC404HD (-6dB).wav: -312.03 µs, 5.9896 dB (L), 5.9826 dB (R), -43.9170 dBFS (L), -43.8073 dBFS (R)

To be added to the next issue of the list of the results.

Loopback tests requested by forum members: Eventide H8000FW (for validating or invalidating the test from jeamsler), Pacific Microsonics Model One and Model Two, SSL 2+, RME M-32 AD Pro --> M-32 DA Pro, RME M-1610 Pro, Prism Dream DA-2 --> AD-2, BlackLion Audio Revolution 2×2, RME MADIface Pro, RME Fireface UCX II, SSL BiG SiX, Prism Sound Dream ADA-128, anything from Qes Lab, JCF, Burl and Linn, iZ RADAR, Avid HD OMNI, Cranborne Audio 500R8, Fractal Audio Systems Axe-Fx III, NEVE MBC, Sound Blaster X7, Focusrite ISA 428, Elektron Octatrack MKII , Burl B2 Bomber ADC ---> DAC, dCS, Antelope Amari, Black Lion mods (e.g. Apollo X mods), Lynx Hilo 2, new (2024) MOTU 828, Forssell MDAC-2 ---> MSB Studio ADC as master, Solid State Logic SSL 18. Of course any other one welcome!

do you have the results?

I was waiting for your new (possibly stereo) file:
You did it right for the Audient iD14 Mk2.

Here's the result for your Antelope Audio Zen Quadro mono track, which I guess being recorded from the left channel of the original:
-27.763220 ms, 4.7398 dB (L), -42.6246 dBFS (L)

Hmmm sorry I will do L & R channel.
I will use Audacity like last time.

ART DPS II (Review on SOS)

- ART DPS II (-6dB) incl preamp and tube section, cleanest tube setting

- ART DPS II (0dB) incl preamp and tube section, cleanest tube setting

- ART DPS II (-3dB) excl preamp and tube section, signal inserted directly into DPS II's internal AD converter

Signal path, DA = Metric Halo LIO 3D => => => AD = ART DPS II (internal sync).