Lexus RC F to employ "ASC" - Active Sound Control for Interior Cabin..!!
09-23-14, 11:32 AM
#61
i assume you have heard that inside a m3/4 and/or m5/6? i haven't, but most i have talked to say it sounds very nice inside, just so fake
09-23-14, 01:37 PM
#62
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there is a volume button in the nx (see attached pic). i have to see on the rcf. at the lowest volume, the led light at the top of the switch is actually off, meaning the system is off. as volume increases, the led turns on, and i get louder and louer cabin sound
i assume you have heard that inside a m3/4 and/or m5/6? i haven't, but most i have talked to say it sounds very nice inside, just so fake
i assume you have heard that inside a m3/4 and/or m5/6? i haven't, but most i have talked to say it sounds very nice inside, just so fake
09-23-14, 03:09 PM
#64
considering how many people are interested in this, i went ahead and talked to lexus directly about the asc on different lexus models.
on the IS f sport, it's done mechanically on the intake. it's an added device solely for sound generation, according to the speed and pressure intake is sucking in air, the pulsation increases and thus the added engine sound.
the nx asc is fully electronic, tone changes according to the engine speed and rpm, and it's fed through a speaker. there is a switch to turn on/off and control the volume of the sound (as pictured)
the rcf will have the EXACT SAME system as the nx, an electronically controlled sound generator and the sound is fed through speaker. and the difference is that on the rcf, it's going to be activated in the sport+ mode (if i understand correctly) BUT there is NO switch at all, meaning it's non-adjustable.
on the IS f sport, it's done mechanically on the intake. it's an added device solely for sound generation, according to the speed and pressure intake is sucking in air, the pulsation increases and thus the added engine sound.
the nx asc is fully electronic, tone changes according to the engine speed and rpm, and it's fed through a speaker. there is a switch to turn on/off and control the volume of the sound (as pictured)
the rcf will have the EXACT SAME system as the nx, an electronically controlled sound generator and the sound is fed through speaker. and the difference is that on the rcf, it's going to be activated in the sport+ mode (if i understand correctly) BUT there is NO switch at all, meaning it's non-adjustable.
09-23-14, 04:16 PM
#66
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Turbo engines has been around for decades now. Sound has never been a problem before, now it suddenly is . Another thing is that people in general hates loud engine noises, especially women and luxury car owners. So why on earth do cars like Nx ( and Nx 300h ?? ) have this fake sound system is a mystery to me.
Last edited by Mr Bond; 09-23-14 at 04:22 PM.
09-23-14, 04:31 PM
#68
considering how many people are interested in this, i went ahead and talked to lexus directly about the asc on different lexus models.
on the IS f sport, it's done mechanically on the intake. it's an added device solely for sound generation, according to the speed and pressure intake is sucking in air, the pulsation increases and thus the added engine sound.
the nx asc is fully electronic, tone changes according to the engine speed and rpm, and it's fed through a speaker. there is a switch to turn on/off and control the volume of the sound (as pictured)
the rcf will have the EXACT SAME system as the nx, an electronically controlled sound generator and the sound is fed through speaker. and the difference is that on the rcf, it's going to be activated in the sport+ mode (if i understand correctly) BUT there is NO switch at all, meaning it's non-adjustable.
on the IS f sport, it's done mechanically on the intake. it's an added device solely for sound generation, according to the speed and pressure intake is sucking in air, the pulsation increases and thus the added engine sound.
the nx asc is fully electronic, tone changes according to the engine speed and rpm, and it's fed through a speaker. there is a switch to turn on/off and control the volume of the sound (as pictured)
the rcf will have the EXACT SAME system as the nx, an electronically controlled sound generator and the sound is fed through speaker. and the difference is that on the rcf, it's going to be activated in the sport+ mode (if i understand correctly) BUT there is NO switch at all, meaning it's non-adjustable.
What we are not acknowledging is that it works brilliantly well based on the remarks of all the journalists who drove prototypes.
09-23-14, 04:34 PM
#69
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^^ Stop making stuff up....
The ASC in the RC F is speaker driven... PERIOD
The speaker is attached under the dashboard. (from an unnamed source) It will ENHANCE DRIVERS CABIN EXPERIENCE.
ALL the 14/15' IS300 hybrid - found not in the USA
Which includes the ASC volume switch..
~ Joe Z
The ASC in the RC F is speaker driven... PERIOD
The speaker is attached under the dashboard. (from an unnamed source) It will ENHANCE DRIVERS CABIN EXPERIENCE.
ALL the 14/15' IS300 hybrid - found not in the USA
Which includes the ASC volume switch..
~ Joe Z
Last edited by Joe Z; 11-21-15 at 08:18 PM.
09-23-14, 04:44 PM
#71
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Also for the record, the "Sound Creator" or "Sound Generator" on the intake pipes of the 13/14/15' GS350 (ALL) & 14/15' IS250 FSport & IS350 (ALL)...
or EVEN the LFA surge tanks..
...Have never been called or labeled as part of ASC or "Active Sound Control"..
FACT: All the Toyota / Lexus models with ASC function, are known to be via speaker..
~ Joe Z
or EVEN the LFA surge tanks..
...Have never been called or labeled as part of ASC or "Active Sound Control"..
FACT: All the Toyota / Lexus models with ASC function, are known to be via speaker..
~ Joe Z
09-23-14, 04:47 PM
#72
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Originally Posted by 2015 Lexus RC F Press Kit
Active Sound Control
The sound blasting from the RC F’s quad stacked tailpipes is sure to turn heads and raise
pulse rates. Yet, Lexus also had to design the cabin to be quiet enough to enable enjoyment of the standard premium sound system or sonically stunning Mark Levinson® Premium Surround Sound system.
How could RC F drivers enjoy both? The answer is Active Sound Control (ASC), which lets the driver control enhanced exhaust, intake and mechanical sounds within the cabin. Specifically, Lexus sought to approximate the aural experience provided by the Lexus LFA, which issued some of the most stirring mechanical intake and exhaust notes of any supercar. Although LFA V10 engine revs to 9,000 rpm and RC F’s V8 to 7,200 rpm, the engineers have come close.
An electronic control unit mounted beneath the instrument panel takes input from engine sounds, including varying engine speed, vehicle speed and throttle position and generates augmented sound through an actuator. It is entirely separate from audio system, so there’s no reduction in music fidelity.
Most importantly is the driver controls ASC. It’s activated only in SPORT S+ mode, not Eco, Normal and SPORT S modes. And when it’s on, ASC blends with the natural intake and exhaust sounds to about a 50:50 ratio.
At engine speeds up to 3,000 rpm, ASC issues a steady tone of low and deep sounds. As revs rise, the tone transforms into a higher-pitched note that blends with the engine’s mechanical sounds, culminating in a free-soaring sound beyond 6,000 rpm.
09-23-14, 04:51 PM
#73
Turbo engines has been around for decades now. Sound has never been a problem before, now it suddenly is . Another thing is that people in general hates loud engine noises, especially women and luxury car owners. So why on earth do cars like Nx ( and Nx 300h ?? ) have this fake sound system is a mystery to me.
09-23-14, 04:53 PM
#74
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http://media.toyota.co.uk/image_libr...013-current-2/
09-23-14, 04:56 PM
#75
The ASC is a 50:50 percent mix of intake and engine sounds with low, deep tones between 3,000 and 6,000 rpm. Above 6,000, the mix is with a higher pitched tone. All of these tones are actuated based on the natural sounds of the engine. This in effect is an amplification system with variable matched tone for all you audiophiles.
What we are not acknowledging is that it works brilliantly well based on the remarks of all the journalists who drove prototypes.
What we are not acknowledging is that it works brilliantly well based on the remarks of all the journalists who drove prototypes.
the rcf is no difference here at all, period. all cars have intrinsic intake, engine, and exhaust sound. doesn't matter rcf or m3 or m5. it's just matter of enough or not. clearly not the case in m3 and m5 so additional sound were added. i don't know if it's "enough" in the rcf, but lexus decided to add it to the rcf in the sport+ mode. it's the same thing
i just personally don't see how this now becomes a praising point on the rcf