Re: Hiss Effect
Re: Hiss Effect
- Subject: Re: Hiss Effect
- From: Admiral Quality <email@hidden>
- Date: Wed, 18 May 2011 19:33:39 -0400
There's going to be effects from the stereo encoding as well. As a
vinyl record uses an M-S scheme, you'll get some clicks/pops in the
center (the M signal, lateral movement of the needle), but you'll also
get others that come out phase inverted as they're only in the -S
signal (vertical movement of the needle).
- AQ
On Wed, May 18, 2011 at 7:29 PM, <email@hidden> wrote:
> I was in a totally misconception of the RIAA curve, I thought it was applied
> to the record to cut the bass it can't handle and not to the playback.
> Thanx for the explanation.
>
>
> On Thu, 19 May 2011 01:24:11 +0200, Per Bull Holmen <email@hidden>
> wrote:
>>
>> 2011/5/18 Sean Costello <email@hidden>:
>>>
>>> Hey Sergio,
>>>>
>>>> In this example are you applying the RIAA curve only to hiss and scratch
>>>> and not for the original music?
>>>
>>> Exactly. The music might have a separate lowpass filter applied, just to
>>> reduce the bandwidth from 20 Khz to a value around 15 KHz. Which isn't based
>>> on any concrete measurements, so much as a gut feeling that removing the
>>> very high frequencies will help create a "warmer" impression.
>>
>> As mentioned, RIAA EQ on the music would be totally wrong. It boosts
>> the bass which was removed during printing of the vinyl, because the
>> vinyl can't handle the large swings in the bass signal. Vinyl
>> recordings typically have softer less punchy bass than CD. Little
>> static noise, but random pops and clicks. When the audio gets complex,
>> it sounds compressed and a little muddy (not so clear separation of
>> instruments). The high end can either go very high up and be very
>> clear and amazingly sweet, or be reduced in the highest range as you
>> suggest, depending on the quality of the playback equipment.
>>
>> Per
>> _______________________________________________
>> Do not post admin requests to the list. They will be ignored.
>> Coreaudio-api mailing list (email@hidden)
>> Help/Unsubscribe/Update your Subscription:
>>
>>
>>
>> This email sent to email@hidden
>
> _______________________________________________
> Do not post admin requests to the list. They will be ignored.
> Coreaudio-api mailing list (email@hidden)
> Help/Unsubscribe/Update your Subscription:
>
> This email sent to email@hidden
>
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Coreaudio-api mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden