Hi all,
Looking for some help here...
I have a digital piano Yamaha YDP-163 which has 2 headphone jacks as audio outputs. Sadly, no AUX OUT or LINE OUT jacks so only headphones.
When plugging a single pair of headphones to either of the headphone jacks, the audio signal is clean, clear and loud with very good signal to noise ratio.
Now, i wish to be able to record audio from this piano into my PC using RME Fireface 400 inputs.
Since the headphone jacks are 1/4 TRSF i need a breakout cable to split L and R signals - means a split from 1/4 TRSF to dual 1/4 TS (Unbalanced) connectors
I have tried to search over the internet for a high quality cable for that matter (low noise, good shield, good plugs) and came across with this one and decided to buy it:
Mogami GOLD INSERT TS-12 Insert Cable, 1/4" Straight TRS Male Plug to Dual 1/4" Straight TS Male Plug Send/Receive Connectors, Gold Contacts, 12 Foot
Amazon.com: Mogami GOLD INSERT TS-12 Insert Cable, 1/4" Straight TRS Male Plug to Dual 1/4" Straight TS Male Plug Send/Receive Connectors, Gold Contacts, 12 Foot: Musical Instruments
Pretty expansive cable if you ask me, but i figured - Mogami audio wire and Neutrik connectors - Looks like a great high quality cable to capture the great sound of my piano.
So the cable arrived and i connected it but sadly I’m having 2 issues with it:
1. Audio signal is too low
2. Very audible noise floor
Audio signal is too low when monitoring inputs in RME Fireface 400 - even if i crank up the piano master volume to MAX, the signal is still too low.
I tried increasing the LINE IN volume, and also tried activating the LINE IN inputs as INSTRUMENT IN mode to have more gain – Ok so the signal is louder now but now such increase involve noise.
Sp all possible gain increase alternatives via RME Fireface 400 lead to increase of the noise floor which is not acceptable.
The noise is somewhat not a typical hiss or hum but rather soft rapid “clicks” (for the lack of a better term) that are audible especially when increasing the volume in my audio interface.
Decreasing the piano master volume to MIN has no effect on the noise. Also, when powering off the but leaving the cables connected still introduces the same noise.
As for the noise - I’m beginning to think it might be an issue with the cable. I didn’t pay too much attention to the purpose of the cable - Insert cable for send/receive loop effects, but rather thought that the wiring and the connectors is exactly what I need.
Is there a possibility that the cable is not compatible for stereo breakout duties ? Maybe that audio noise is a result of using the cable in different direction as opposed to what the cable intentionally was meant for ?
If the audio signal level capture would have been very high to begin with I guess that lowering the Fireface line inputs or even using the built-in PADs to attenuate the signal would improve the signal to noise ratio.
I just made a quick check:
My headphones are AKG K240 Studio (Not MKII) – Rated impedance – 55 Ohm
RME Fireface 400 Line Ins jacks – Rated impedance – When used as “LINE IN” inputs – rated as 10 kOhm, When activated as “INSTRUMENT IN” inputs – rated at 470 kOhm.
So my main concerns:
Is the low audio signal captured in RME is due to impedance mismatch ?
Is there an issue with my audio interface ?
Is there an issue with the mogami audio cable ?
Is the mogami audio cable I purchased may not be intended for such use ?
I tried to search google for similar issues.. most left unanswered ultimately…
Such a shame that I can’e record my piano in this current situation…Will be glad to hear opinions and suggestions
Thanks
G
https://www.amazon.com/gp/product/B008ZT8UR8/?tag=r06fa-20