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Require implementations support exactly the inclusive range [3000, 768000] for sample rate #2657

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Require implementations support exactly the inclusive range [3000, 768000] for sample rate #2657

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d85cf14
Update required sample rate support range
Nov 25, 2025
0bbc458
Update required sample rate support range
Nov 25, 2025
a77c6d3
Merge branch 'WebAudio:main' into sample-rate
mjwilson-google Nov 25, 2025
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24 changes: 15 additions & 9 deletions index.bs
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Original file line number Diff line number Diff line change
Expand Up @@ -979,7 +979,7 @@ Methods</h4>
<pre class=argumentdef for="BaseAudioContext/createBuffer()">
numberOfChannels: Determines how many channels the buffer will have. An implementation MUST support at least 32 channels.
length: Determines the size of the buffer in sample-frames. This MUST be at least 1.
sampleRate: Describes the sample-rate of the [=linear PCM=] audio data in the buffer in sample-frames per second. An implementation MUST support sample rates in at least the range 8000 to 96000.
sampleRate: Describes the sample-rate of the [=linear PCM=] audio data in the buffer in sample-frames per second. See [[#sample-rates]] for the required supported range.
</pre>
<div>
<em>Return type:</em> {{AudioBuffer}}
Expand Down Expand Up @@ -2345,11 +2345,8 @@ Dictionary {{AudioContextOptions}} Members</h5>
: <dfn>sampleRate</dfn>
::
Set the {{BaseAudioContext/sampleRate}} to this value
for the {{AudioContext}} that will be created. The
supported values are the same as the sample rates for an
{{AudioBuffer}}. <span class="synchronous">A
{{NotSupportedError}} exception MUST be thrown if
the specified sample rate is not supported.</span>
for the {{AudioContext}} that will be created. See
[[#sample-rates]] for the required supported range.

If {{AudioContextOptions/sampleRate}} is not
specified, the preferred sample rate of the output device for
Expand Down Expand Up @@ -2557,7 +2554,7 @@ Constructors</h4>
<pre class=argumentdef for="OfflineAudioContext/constructor(numberOfChannels, length, sampleRate)">
numberOfChannels: Determines how many channels the buffer will have. See {{BaseAudioContext/createBuffer()}} for the supported number of channels.
length: Determines the size of the buffer in sample-frames.
sampleRate: Describes the sample-rate of the [=linear PCM=] audio data in the buffer in sample-frames per second. See {{BaseAudioContext/createBuffer()}} for valid sample rates.
sampleRate: Describes the sample-rate of the [=linear PCM=] audio data in the buffer in sample-frames per second. See [[#sample-rates]] for the required supported range.
</pre>
</dl>

Expand Down Expand Up @@ -2794,7 +2791,8 @@ Dictionary {{OfflineAudioContextOptions}} Members</h5>

: <dfn>sampleRate</dfn>
::
The sample rate for this {{OfflineAudioContext}}.
The sample rate for this {{OfflineAudioContext}}. See
[[#sample-rates]] for the required supported range.

: <dfn>renderSizeHint</dfn>
::
Expand Down Expand Up @@ -3143,7 +3141,7 @@ The allowed values for the members of this dictionary are constrained. See {{Ba

: <dfn>sampleRate</dfn>
::
The sample rate in Hz for the buffer. See {{BaseAudioContext/createBuffer()/sampleRate}} for constraints.
The sample rate in Hz for the buffer. See [[#sample-rates]] for the required supported range.
</dl>


Expand Down Expand Up @@ -11667,6 +11665,14 @@ events MUST be the same: given two operation <var>A</var> and
before <var>B<sub>Async</sub></var>. In other words, synchronous and
asynchronous sections can't be reordered.

<h3 id="sample-rates">Supported Sample Rates</h3>

<p>
Implementations MUST support sample rates between 3000 Hz and 768000 Hz,
inclusive. A {{NotSupportedError}} MUST be thrown if a sample rate outside this
range is specified.
</p>

<h3 id="rendering-loop">
Rendering an Audio Graph</h3>

Expand Down