16-32bit

[c00kie55]

please help me understand.
in asio4all mixer it says HD Audio output 32bit and input is only 16bit
but in cubase project setup recording is set to 32 bit float and is working just fine? (i think*) in windows vista sound setup says 24bit out 16 bit in

its a realtek 6 channel hd audio chip
in a ASUS X5AVN FP087C notebook


can it record at 32bit or only 16 bit
WHO shall i trust cubase 5 or windows vista or asio4all
thanx in advance

[c00kie55]

sorry guess it should been posted in Problems And Solutions section
but i wasted and confused

[exyll]

I think that you are mixing up some stuff

Input and output is at 24 bit fixed point maximum. However, some DAW's have an internal engine that can be configured like in your situation where you can set it to 32 bit floating point.

In the end when all channels have been mixed in 32 bit floating point modus it will need to "render" it live to the output specifications of your hardware.

The reason that it is doing 32 bit floating point and not 24 bit floating point it that that's the way CPU's work. Cpu's do there work in 8, 16, 32, 64 or 128 bit operations. The reason its working in floating point instead of fixed is because of the higher precision while mixing audio channel data.

In most situations it is sufficient to work in 44.1 or 48 kHz IN/OUT and if your hardware supports 24 bit then I suggest you use that too. I work in 48kHz / 24 bit when possible as my input gear its native sampling frequency if 48kHz.

The human ear can hear at 22kHz max, you need twice that frequency for recoring such frequencies so then you get 44kHz. To be at the safe-side you could record at 48kHz. The bit depth will decide the quality of your recording.

It is better to record at 48kHz/24b then 96kHz/16b as the human ear wont hear such frequencies except when you are recording stuff for your dogs ;-)

[c00kie55]

iam no dj you know.
it seams i only have 16bit in and 24 out then
guess there aint no reason not to stay in 16 bit ?
what happens in windows 64bit do i get a 64bit floatingpoint?
if i do the math 4x16 is 64 it not that easy with 24bit but guess cpu dont care

i tryed to hook up vsthost just to tjek your point about the
DAW's haveing an internal engine but it seams that vsthost uses same system as cubase becourse then asio4all also says my outputs are 32 bit not inputs they stay at 16 i dont really understand that system becourse i guess it mix it down before sending to my outputs and will all this not take cpu power

anyway input seams to be 16bit 44kHz-192kHz
so i will set it to 16 48kHz rigth and mix up somthing else
this way i migth also bieng able to use my bluetooth headphones
as they only supports 16 bit

ps i have no dog only a doggy life and a kat

[cookie55]

guess i mean cat not kat but how cares there are evil creatures anyway you know they eat mouse

[c00kie55]

well i bougth a cheap new motherboard to day (asus p5kpl-cm)
and was surprised to read about intel audio and either your wrong
about the 24 bit thingz or iam still confused . ithink you are talking about firewire and usb audio card becource they only seams to support 24 bit and below......

this is a cut and paste from intels site
Intel HD Audio delivers significant improvements over previous generation integrated audio and sound cards. Intel HD Audio hardware is capable of delivering the support and sound quality for up to eight channels at 192 kHz/32-bit quality, while the AC‘97 specification can only support six channels at 48 kHz/20-bit. In addition, Intel HD Audio is architected to prevent the occasional glitches or pops that other audio solutions can have by providing dedicated system bandwidth for critical audio functions.

you can read here www.intel.com/design/chipsets/hdaudio.htm

anyway i look forward testing this with asio ;Dall