January 7, 2016 at 1:15AM

5

Tascam DR-70D & the Sony A7s MkII

Hi all,

I've been playing with a new Tascam DR-70D connected to a Sony A7s mkII today. Here are two problems I've discovered:

The outputted levels arrive in the DSLR at an extremely high level – I've set the record level to its lowest setting (1/31) to compensate for the noise. I think an attenuation cable (like the Sescom LN2MIC-ZOOMH4N) may solve this, however?

I've been able to connect various devices to the DR-70D (an NTG3 and a set of Sony UTX-B03's) and tested the Phantom Power on different channels – but I'm struggling to isolate channels 1 and 2! Under the Basic menu, the pair have a "wide" option each instead of the "pan" option channels 3 and 4 have in the same menu? It's a bit confusing.

Any help on either of these matters would be greatly appreciated! Thanks guys.

Jake

6 Comments

Have you upgraded the DR-70D firmware to version 1.12 ?

Yes, you need to use a 3.5mm Sescom cable with 25 dB audio PAD to get good audio OUT from the DR-70D. ( I will post instructions later today )

January 7, 2016 at 10:13AM

3
Reply
Guy McLoughlin
Video Producer
32734

Ok, here are the settings I use to get the best audio quality when recording with the Tascam DR-70D and feeding the 3.5mm audio output to my GH4 camera. I expect the Sony A7S II would function in a similar way...

GH4 CAMERA SETTINGS
------------------------------------
­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­Rec Format = MP4 (LPCM) : screen 1/7 of Motion Picture menu
Mic Level Adj. = ­-12 dB : screen 5/7 of Motion Picture menu
Mic Level Limiter = OFF : screen 6/7 of Motion Picture menu

TASCAM DR­70D SETTINGS
---------------------------------------
­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­BASIC MENU
­ RECORD : ON
­ PAN : ( normal pan settings )
­ GAIN : LOW ( for LINE level inputs ), MID ( for "hot" mics )
­ INPUT : XLR/TRS ( for pro audio sources )

The GAIN with almost all low cost audio preamps is where you are going to introduce noise, as most units can only produce a low ­noise signal up to about HALF of their maximum gain. So ideally you want to feed your TASCAM unit a hot signal that is either LINE level or something from a hot mic. If your mic produces a weak signal you might want to add something that will cleanly amplify the mic signal BEFORE being fed to your TASCAM DR­70D recorder. ( like a Triton Audio FETHEAD inline mic preamp that runs on phantom power from your DR­70D )

MONITOR MENU
­ MONITOR SEL : CAM
­ OUTPUT LEVEL : ­6 dB
­ OUTPUT GAIN : LINE

This is how you set the DR­70D audio OUTPUT to record clean audio with your GH4 camera. You will need the Sescom cable with the 25 dB PAD to connect your GH4 to the TASCAM DR­70D 3.5mm audio OUTPUT. The Sescom cable is absolutely necessary to record clean audio from the DR­70D 3.5mm audio OUTPUT.

January 7, 2016 at 4:35PM, Edited January 7, 4:36PM

4
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Guy McLoughlin
Video Producer
32734

Thanks for this, Guy! I'll order the Sescom 3.5mm line to mic -25 dB cable for Zoom H6, I'm sure it'll work for this combo. And yes, I'd updated the DR-70D's firmware to version 1.12... right out of the box, both the camera and sound recorder required firmware updates. What obsolescent times we live in, hey.

Also I figured out why channels 1 and 2 were seemingly locked on the DR-70D; under the Mic settings I had channels 1/2 on under MS Mode. Not the most obvious default setting there, Tascam!

January 7, 2016 at 6:33PM, Edited January 7, 6:40PM

0
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avatar
Jake H. Harris
Filmmaker
156

Yes, the Tascam menus are a bit finicky.

I've always wanted to try recording MS stereo but I don't own the mics you need to pull it off. The adjustable stereo depth of a MS recording would be fun to play with.

Guy McLoughlin

January 7, 2016 at 6:52PM

Hi,

Could you please confirm that the Sescom 3.5mm line to mic -25 dB cable fixed your issue ?

I have the same setup using an NTG-2 as a mic ..

Thanks :)

Ayoub Benali

February 21, 2016 at 11:26AM

NOTE: The output level for the MONITOR MENU should be -6dB, I forgot the minus sign.

January 7, 2016 at 6:47PM

11
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Guy McLoughlin
Video Producer
32734

Ya what's your suggestion in using those ms modes? What does that even mean? Mix??

February 1, 2016 at 6:44AM

11
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matthew
Youth Pastor
74

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