Dan Halbert
72e3cfdfb8
Fix arg type for AudioOut(..., quiescent_value=...)
2018-12-03 11:20:33 -05:00
Scott Shawcroft
4eb1fe18e5
Tweaks from feedback:
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* default_value is now quiescent_value
* Use step = -step format for sign switch
* Add note about analogout_reset being empty
2018-10-17 11:31:08 -07:00
Scott Shawcroft
c209165d43
Ramp values to and from a default value while active.
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This reduces the popping sound on initial playback of an audio
sample.
The M4 DAC has a pop on startup that cannot be prevented. It also
does not allow readback so current values of the DAC are ignored.
Fixes #1090
2018-10-16 16:23:29 -07:00
Scott Shawcroft
933add6cd8
Support internationalisation.
2018-08-07 14:58:57 -07:00
Kattni Rembor
a10c61ef89
Fixed issue with code in docs for audioio
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Removed incorrect arg from RawSample in AudioOut example code.
Replaced variable sample with dac.
2018-06-29 16:46:25 -04:00
jerryneedell
1d9bcc5ddf
fix doc error in audioOut.c
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fixes #851
2018-05-19 10:41:36 -04:00
Scott Shawcroft
fc7c25af6d
Make resume idempotent (allowing you to call it twice without complaining.)
2018-05-08 13:00:05 -07:00
Scott Shawcroft
24116eff23
Tweak exception message.
2018-05-08 12:44:27 -07:00
Scott Shawcroft
50fc90bc5f
Add pause/resume control to AudioOut and I2SOut
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Fixes #808
2018-05-08 11:53:13 -07:00
Scott Shawcroft
28642ab10d
Add audio output support!
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This evolves the API from 2.x (and breaks it). Playback devices are now
separate from the samples themselves. This allows for greater playback
flexibility. Two sample sources are audioio.RawSample and audioio.WaveFile.
They can both be mono or stereo. They can be output to audioio.AudioOut or
audiobusio.I2SOut.
Internally, the dma tracking has changed from a TC counting block transfers
to an interrupt generated by the block event sent to the EVSYS. This reduces
the overhead of each DMA transfer so multiple can occure without using up TCs.
Fixes #652 . Fixes #522 . Huge progress on #263
2018-04-12 16:35:13 -07:00
Kattni
446a31302c
Merge pull request #600 from tannewt/clarify_property_comments
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Clarify style of attribute comments in the Design Guide.
2018-02-14 22:03:37 -05:00
Scott Shawcroft
15db02664d
Clarify style of attribute comments in the Design Guide.
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And update the core attributes to match the style.
2018-02-07 13:08:42 -08:00
arturo182
ff041caa52
shared-bindings: Fix incorrect code comments
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Most likely caused by copy-paste.
2018-02-06 22:03:17 +01:00
Dan Halbert
c478c10923
Do not allow a *io object to be used after deinit().
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Fixes #278 , #277 , #276 , #275 .
2017-10-03 12:07:17 -07:00
Scott Shawcroft
f878bc4efc
atmel-samd: Fix AudioOut buffer playback by supporting bytes_per_sample.
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Thanks to @ntoll for finding this bug!
2017-07-12 11:55:49 -07:00
Scott Shawcroft
714521a4c7
shared-bindings: Update docs to remove with statements from examples but add more detail to the design guide about their use.
2017-06-07 14:39:12 -07:00
Scott Shawcroft
3f5028c666
atmel-samd: Support wav file playback. Tested up to 16bit 22.1khz. Must be mono file!
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SD card support may work but likely needs buffer tuning. Its untested.
Fixes #105
2017-05-15 19:52:38 -07:00
Scott Shawcroft
58b9789d0c
atmel-samd: Introduce audio sample playback via audioio.AudioOut.
2017-05-01 13:10:03 -07:00
