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[Bug 23092] New: Clarify DelayNode timing specifics

From: <bugzilla@jessica.w3.org>
Date: Thu, 29 Aug 2013 13:13:17 +0000
To: public-audio@w3.org
Message-ID: <bug-23092-5429@http.www.w3.org/Bugs/Public/>

            Bug ID: 23092
           Summary: Clarify DelayNode timing specifics
    Classification: Unclassified
           Product: AudioWG
           Version: unspecified
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Web Audio API
          Assignee: crogers@google.com
          Reporter: olivier.thereaux@bbc.co.uk
        QA Contact: public-audio@w3.org

This issue was first reported by Karl T in:

When I first read that the DelayNode "delays the incoming audio
signal by a certain amount", I imagined something like

(1)     y(t + d(t)) = x(t)

for input x(t), output y(t) and delay d(t).

However, I get the impression that delay lines are often
implemented as

(2)     y(t) = x(t - d(t)).

So I think I may have been reading more into the statement above
than was intended.

Ehsan confirmed in:
that the latter is implemented. 

The spec prose should be clarified to reflect this.

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Received on Thursday, 29 August 2013 13:13:22 UTC

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