Subject: Re: [linux-audio-dev] So, what to do about it? (was: Still I cannot understand why...)
From: martijn sipkema (msipkema_AT_sipkema-digital.com)
Date: Mon Dec 17 2001 - 13:35:04 EET
> > i'm not an expert on cd recording devices, but these do not allow the
> > change of recording speed whilst recording, do they?
>
> Recording speed is set by the sample rate.
>
> > and does s/pdif have flow control?
>
> No. s/pdif is a fully synchronous serial protocol which utilizes 100%
> of its bandwidth 100% of the time.
>
> > at least one of either the source or destination needs
> > to have some way to control its data rate
>
> There is no such control for the reasons above.
>
> > while recording otherwise
> > buffer underflow/overflow will eventually occur.
>
> The only buffering is in the CD writer part and this is the only place
> where buffering over/underruns can occur.
i'm sorry, but i don't understand. the rate at which data comes in
from the s/pdif interface is fixed. the if cd recording device is not
able to adjust its 'pitch', i.e. record at a rate slightly higher/lower
than its nominal recording rate, it will eventually xrun, if that is
the correct term for it, right?
--martijn
This archive was generated by hypermail 2b28 : Mon Dec 17 2001 - 13:24:31 EET