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[Csnd-dev] MIDI file playback and tempo

Date2026-05-12 06:21
FromSteven Yi
Subject[Csnd-dev] MIDI file playback and tempo
Hi All,

I was testing out an orc using -F midifile.mid with various midi files and found they all seemingly played back at the same tempo and not at the tempo of the MIDI file. I'm using csound built from commit 489eef1075b56748322dd034b7787c3b6562244f. Could someone else test -F midi playback and confirm if they have any tempo issues?

Steven

Date2026-05-12 06:46
FromVictor Lazzarini <000010b17ddd988e-dmarc-request@LISTSERV.HEANET.IE>
SubjectRe: [Csnd-dev] [EXTERNAL] [Csnd-dev] MIDI file playback and tempo
yes, that’s right; tempo is not being picked up.
========================
Prof. Victor Lazzarini
Maynooth University
Ireland






> On 12 May 2026, at 06:21, Steven Yi  wrote:
>
> *Warning*
> This email originated from outside of Maynooth University's Mail System. Do not reply, click links or open attachments unless you recognise the sender and know the content is safe.
> Hi All,
>
> I was testing out an orc using -F midifile.mid with various midi files and found they all seemingly played back at the same tempo and not at the tempo of the MIDI file. I'm using csound built from commit 489eef1075b56748322dd034b7787c3b6562244f. Could someone else test -F midi playback and confirm if they have any tempo issues?
>
> Steven

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Is don seolaí / do na seolaithe thuasluaite amháin an ríomhphost seo. D’fhéadfadh an t-eolas atá ann a bheith rúnda agus faoi phribhléid. Mura seolaí tú, tá cosc iomlán ar aon eolas atá sa ríomhphost seo a úsáid, a scaipeadh, a dháileadh, a fhoilsiú nó a chóipeáil. Má fuair tú an ríomhphost seo trí thimpiste, cuir sin in iúl dúinn láithreach trí ríomhphost a chur chuig  dataprotection@mu.ie  agus scrios an ríomhphost seo ó do chóras.

Tabhair faoi deara go bhfuil Ollscoil Mhá Nuad faoi réir dhlíthe um Shaoráil Faisnéise agus um Chosaint Sonraí. D’fhéadfadh ceangal a bheith orainn ábhar ríomhphoist a nochtadh faoin Acht um Shaoráil Faisnéise 2014, faoin Acht um Chosaint Sonraí 2018 nó faoi GDPR.

Registered charity number 20037130



Date2026-05-12 08:49
FromVictor Lazzarini <000010b17ddd988e-dmarc-request@LISTSERV.HEANET.IE>
SubjectRe: [Csnd-dev] [EXTERNAL] [Csnd-dev] MIDI file playback and tempo
That was a bug in tempo scaling. Fixed now in PR https://github.com/csound/csound/pull/2552
========================
Prof. Victor Lazzarini
Maynooth University
Ireland






> On 12 May 2026, at 06:46, Victor Lazzarini <000010b17ddd988e-dmarc-request@LISTSERV.HEANET.IE> wrote:
>
> yes, that’s right; tempo is not being picked up.
> ========================
> Prof. Victor Lazzarini
> Maynooth University
> Ireland
>
>
>
>
>
>
>> On 12 May 2026, at 06:21, Steven Yi  wrote:
>>
>> *Warning*
>> This email originated from outside of Maynooth University's Mail System. Do not reply, click links or open attachments unless you recognise the sender and know the content is safe.
>> Hi All,
>>
>> I was testing out an orc using -F midifile.mid with various midi files and found they all seemingly played back at the same tempo and not at the tempo of the MIDI file. I'm using csound built from commit 489eef1075b56748322dd034b7787c3b6562244f. Could someone else test -F midi playback and confirm if they have any tempo issues?
>>
>> Steven
>
> The information contained in this email may be confidential and privileged. It is intended only for the addressee(s) stated above. If you are not an addressee any use, dissemination, distribution, publication or copying of the information contained in this email is strictly prohibited. If you have received this email in error, please immediately notify us by email at dataprotection@mu.ie and delete this email from your system.
>
> Please note that Maynooth University is subject to Freedom of Information and Data Protection laws. We may be required to disclose the content of emails under the FOI Act 2014, the Data Protection Act 2018 or GDPR.
>
> Is don seolaí / do na seolaithe thuasluaite amháin an ríomhphost seo. D’fhéadfadh an t-eolas atá ann a bheith rúnda agus faoi phribhléid. Mura seolaí tú, tá cosc iomlán ar aon eolas atá sa ríomhphost seo a úsáid, a scaipeadh, a dháileadh, a fhoilsiú nó a chóipeáil. Má fuair tú an ríomhphost seo trí thimpiste, cuir sin in iúl dúinn láithreach trí ríomhphost a chur chuig  dataprotection@mu.ie  agus scrios an ríomhphost seo ó do chóras.
>
> Tabhair faoi deara go bhfuil Ollscoil Mhá Nuad faoi réir dhlíthe um Shaoráil Faisnéise agus um Chosaint Sonraí. D’fhéadfadh ceangal a bheith orainn ábhar ríomhphoist a nochtadh faoin Acht um Shaoráil Faisnéise 2014, faoin Acht um Chosaint Sonraí 2018 nó faoi GDPR.
>
> Registered charity number 20037130
>
>

The information contained in this email may be confidential and privileged. It is intended only for the addressee(s) stated above. If you are not an addressee any use, dissemination, distribution, publication or copying of the information contained in this email is strictly prohibited. If you have received this email in error, please immediately notify us by email at dataprotection@mu.ie and delete this email from your system.

Please note that Maynooth University is subject to Freedom of Information and Data Protection laws. We may be required to disclose the content of emails under the FOI Act 2014, the Data Protection Act 2018 or GDPR.

Is don seolaí / do na seolaithe thuasluaite amháin an ríomhphost seo. D’fhéadfadh an t-eolas atá ann a bheith rúnda agus faoi phribhléid. Mura seolaí tú, tá cosc iomlán ar aon eolas atá sa ríomhphost seo a úsáid, a scaipeadh, a dháileadh, a fhoilsiú nó a chóipeáil. Má fuair tú an ríomhphost seo trí thimpiste, cuir sin in iúl dúinn láithreach trí ríomhphost a chur chuig  dataprotection@mu.ie  agus scrios an ríomhphost seo ó do chóras.

Tabhair faoi deara go bhfuil Ollscoil Mhá Nuad faoi réir dhlíthe um Shaoráil Faisnéise agus um Chosaint Sonraí. D’fhéadfadh ceangal a bheith orainn ábhar ríomhphoist a nochtadh faoin Acht um Shaoráil Faisnéise 2014, faoin Acht um Chosaint Sonraí 2018 nó faoi GDPR.

Registered charity number 20037130