From: Rene Herman <rene.herman@keyaccess.nl>
To: van der Linden <ejvanderlinden@hetnet.nl>
Cc: alsa-devel@alsa-project.org
Subject: Re: arecord | aplay expected delay
Date: Sun, 16 Mar 2008 22:36:20 +0100 [thread overview]
Message-ID: <47DD92D4.3010102@keyaccess.nl> (raw)
In-Reply-To: <00d301c8874d$51773ea0$0202a8c0@uw4b58d8528225>
On 16-03-08 11:05, van der Linden wrote:
> I'm running arecord and aplay under uCLinux on a Blackfin DSP.
>
> In this way I loopback my audio.
>
> Does anyone know what delay I can expect between audio input and audio output?
Not me, but you just want to loop without doing anything to it? An analogue
input? Every card I know can just loop it's own inputs out again. That is,
In -> Out, while you have In -> ADC -> bus -> cpu/memory -> bus -> DAC -> Out.
> I measure at my test board 50ms. I want to have about 1ms!
You'd need a pretty fast system I suppose. Why does your card not loop
directly itself? You can still record it as well...
Rene
next prev parent reply other threads:[~2008-03-16 21:35 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-03-16 10:05 arecord | aplay expected delay van der Linden
2008-03-16 21:36 ` Rene Herman [this message]
2008-03-18 18:08 ` van der Linden
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=47DD92D4.3010102@keyaccess.nl \
--to=rene.herman@keyaccess.nl \
--cc=alsa-devel@alsa-project.org \
--cc=ejvanderlinden@hetnet.nl \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.