From nobody Sun Feb 27 20:45:56 2022 X-Original-To: freebsd-multimedia@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 8CD7E19D4D9E for ; Sun, 27 Feb 2022 20:46:04 +0000 (UTC) (envelope-from dev@submerge.ch) Received: from c3po.matrixx.ch (c3po.matrixx.ch [80.74.145.109]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 4K6FsQ3B6gz4TxN for ; Sun, 27 Feb 2022 20:46:02 +0000 (UTC) (envelope-from dev@submerge.ch) Received: from [145.40.196.39] (port=41317 helo=z800.localnet) by c3po.matrixx.ch with esmtpsa (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.91) (envelope-from ) id 1nOQQX-0007I0-CW; Sun, 27 Feb 2022 21:45:58 +0100 From: Florian Walpen To: freebsd-multimedia@freebsd.org, Hans Petter Selasky Subject: Re: New FreeBSD port ALSA to JACK MIDI, a2jmidid Date: Sun, 27 Feb 2022 21:45:56 +0100 Message-ID: <10902773.X2hNYcAVgp@z800> In-Reply-To: References: <5113897.hZNMGjoUbN@z800> List-Id: Multimedia discussions List-Archive: https://lists.freebsd.org/archives/freebsd-multimedia List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-multimedia@freebsd.org MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" X-OutGoing-Spam-Status: No, score=-1.0 X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - c3po.matrixx.ch X-AntiAbuse: Original Domain - freebsd.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - submerge.ch X-Get-Message-Sender-Via: c3po.matrixx.ch: authenticated_id: fw@submerge.ch X-Authenticated-Sender: c3po.matrixx.ch: fw@submerge.ch X-Source: X-Source-Args: X-Source-Dir: X-Rspamd-Queue-Id: 4K6FsQ3B6gz4TxN X-Spamd-Bar: / Authentication-Results: mx1.freebsd.org; dkim=none; dmarc=none; spf=pass (mx1.freebsd.org: domain of dev@submerge.ch designates 80.74.145.109 as permitted sender) smtp.mailfrom=dev@submerge.ch X-Spamd-Result: default: False [-0.20 / 15.00]; ARC_NA(0.00)[]; CTE_CASE(0.50)[]; RCVD_TLS_ALL(0.00)[]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; R_SPF_ALLOW(-0.20)[+a:c]; HAS_X_SOURCE(0.00)[]; MIME_GOOD(-0.10)[text/plain]; MID_RHS_NOT_FQDN(0.50)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; NEURAL_SPAM_MEDIUM(0.96)[0.960]; DMARC_NA(0.00)[submerge.ch]; NEURAL_HAM_LONG(-0.86)[-0.856]; TO_MATCH_ENVRCPT_SOME(0.00)[]; NEURAL_HAM_SHORT(-1.00)[-1.000]; RCPT_COUNT_TWO(0.00)[2]; HAS_X_GMSV(0.00)[fw@submerge.ch]; MLMMJ_DEST(0.00)[freebsd-multimedia]; HAS_X_ANTIABUSE(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; R_DKIM_NA(0.00)[]; MIME_TRACE(0.00)[0:+]; ASN(0.00)[asn:21069, ipnet:80.74.144.0/20, country:CH]; RCVD_COUNT_TWO(0.00)[2]; HAS_X_AS(0.00)[fw@submerge.ch] X-ThisMailContainsUnwantedMimeParts: N On Sunday, February 27, 2022 9:29:48 PM CET Hans Petter Selasky wrote: > On 2/27/22 18:45, Florian Walpen wrote: > > @HPS: Any ideas about the latency introduced by alsa-seq-server / CUSE? > > Hi, > > What tools did you use to test? Just jack_midi_latency_test from audio/jack-example-tools, and the whole stack of JACK server, a2jmidid and alsa-seq-server from current ports. > > You might want to ktrace the applications in question to see what is > going on. I thought it's probably introduced by processing blocks of MIDI data, isn't that the case for alsa-seq-server / CUSE? Maybe a2jmidid? > > Is this something I could test on my computer? Easy, see above. You need to loop the MIDI out -> in on your audio interface. > > --HPS Florian