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46f1a0719e
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25 Commits

Author SHA1 Message Date
caternuson
46f1a0719e add channels and bits_per_sample to audioio.WaveFile 2018-10-31 18:08:10 -07:00
Scott Shawcroft
4eb1fe18e5
Tweaks from feedback: 
* 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. 
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
6da25c8893
Rename stop to stop_voice in case we want stop to stop everything later. 2018-10-09 13:28:00 -07:00
Scott Shawcroft
15d80a8c46
Fix doc build 2018-10-05 15:19:08 -07:00
Scott Shawcroft
76008ce304
Introduce audioio.Mixer which can mix multiple audio samples 
to produce a single sample.

Only works with 16 bit samples on the M4.

Fixes #987
 2018-10-05 15:12:23 -07:00
Scott Shawcroft
933add6cd8
Support internationalisation. 2018-08-07 14:58:57 -07:00
Dan Halbert
e2e01efa84 compiles and runs; hangs on import storage;storage.VfsFat.<tab> 2018-07-13 22:51:10 -04:00
Kattni Rembor
a10c61ef89 Fixed issue with code in docs for audioio 
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 
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 
Fixes #808
 2018-05-08 11:53:13 -07:00
Scott Shawcroft
22194d5977 Tweaks based on dhalbert's feedback. 2018-04-13 10:51:01 -07:00
Scott Shawcroft
28642ab10d Add audio output support! 
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 
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. 
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 
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(). 
Fixes #278, #277, #276, #275.
 2017-10-03 12:07:17 -07:00
Dan Halbert
ef61b5ecb5 Initial merge of micropython v1.9.2 into circuitpython 2.0.0 (in development) master. 
cpx build compiles and loads and works in repl; test suite not run yet
esp8266 not tested yet
 2017-08-25 22:17:07 -04:00
Scott Shawcroft
f878bc4efc atmel-samd: Fix AudioOut buffer playback by supporting bytes_per_sample. 
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
2ecb9a3dbf docs: Fix header lines that are too short. 2017-06-07 11:58:04 -07:00
Scott Shawcroft
3f5028c666 atmel-samd: Support wav file playback. Tested up to 16bit 22.1khz. Must be mono file! 
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