Old vinyl records problem when singing "s" letter like a big hiss, I know I can do playing with the RIAA but I don't want a fixed solution, I want some kind of filter to plug in or out at my convinence depending the vinyl record.
TIA
TIA
Is it sibilance or distortion? You could try a parametric EQ in the 5k-8k range. if its just sibilance. The ideal solution would be a de-esser plug in, but that requires digitising the vinyl first which is possibly not a direction you want to go in.
Sibilance yes, distortion not, happens with jazz voice like Billy Holiday, Ella Fitzgerald, Louis Armstrong, etc. I guess in old time record studio doesn't used popfilters. Any suggestion for the parametric EQ?
I get this also on old LPs. Sibilant sssounds are usually around 7K and my phono playback shows no bump there, but does have a bump near 14-15K. Perhaps related.
Here's interesting information on the causes of vinyl sibilance from Soundsmith:
What are the causes of Sibilance? | Soundsmith
What are the causes of Sibilance? | Soundsmith
As Richie says capacitance loading isn't just a standard value ,although when amplifiers are designed some sort of value must be applied .
This is an average value so if you have a problem with sibilance then adjust the loading to suite the cartridge.
Yes there could be other problems but you say its only "old time " recordings so you must be happy with more modern recordings .
In my world of amplifier design its a big NO when it comes to "playing with the RIAA" --get it as flat as possible and then look elsewhere ,this is backed up by audio design engineers one after the other in EW .
Equalization has been worked on by some where inputs ( RIAA ) have several capacitance variations to give a range of choice in the past.
First is it MM or MC ?
Many MM cartridges have their own tonal qualities requiring adjustment at the input .
There is also the big argument that has never gone away in preamps -
I exclusively build JLH Shunt feedback RIAA stages which I find (personal opinion ) "sound better" ---yes I know another "big war " between D.Self & JLH with pages of EW taken up in big arguments and illustrations/theory etc.
John Linsley Hood K1500 Shunt Feedback MM and MC RIAA Pickup Preamp
This is an average value so if you have a problem with sibilance then adjust the loading to suite the cartridge.
Yes there could be other problems but you say its only "old time " recordings so you must be happy with more modern recordings .
In my world of amplifier design its a big NO when it comes to "playing with the RIAA" --get it as flat as possible and then look elsewhere ,this is backed up by audio design engineers one after the other in EW .
Equalization has been worked on by some where inputs ( RIAA ) have several capacitance variations to give a range of choice in the past.
First is it MM or MC ?
Many MM cartridges have their own tonal qualities requiring adjustment at the input .
There is also the big argument that has never gone away in preamps -
I exclusively build JLH Shunt feedback RIAA stages which I find (personal opinion ) "sound better" ---yes I know another "big war " between D.Self & JLH with pages of EW taken up in big arguments and illustrations/theory etc.
John Linsley Hood K1500 Shunt Feedback MM and MC RIAA Pickup Preamp
Original Shure V-15 Type III MM.
I agree, I don't want to play with the RIAA.
Valve Itch phono preamp: Valve Itch phono,Miller input capacitance measured thanks to member kevinkr & other big thanks to member Salas for his design and kind support.
I agree, I don't want to play with the RIAA.
Valve Itch phono preamp: Valve Itch phono,Miller input capacitance measured thanks to member kevinkr & other big thanks to member Salas for his design and kind support.
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why does everyone assume for a given issue with a given vintage of record that the cartridge loading is wrong? Do you guys need something other than a hammer?
My phono cable measured with RCAs 387pF so no added more capacitance in parallel to the resistor load 47K.
Really I done some calculations and the optimal load will be 35K9 ohms for the cart inductance of 500mH but did some listening sessions with 30K up to 70K and no differences with the SQ.
Really I done some calculations and the optimal load will be 35K9 ohms for the cart inductance of 500mH but did some listening sessions with 30K up to 70K and no differences with the SQ.
You are right, it's frustrating. But a lot less sibilance with DSD thank PCM.
So the filter must be place in the line preamp.
blimey. My phono cable is 102pF. Higher than I want for testing but workable for most cases. For your parametric are you thinking tubes, opamps or discrete sand?
Could you give an example of the record? I.e. which Billy Holiday (mono, pressing etc?). Do all your old jazz records have this problem?
I I look for simple & cheap surely opamps, If I look for accurate sand, but I look for real sound (I'm dreaming I know)