This version is outdated by a newer approved version.
This version (17 Apr 2018 09:07) was approved by Sanjeeva Reddy.
This version (17 Apr 2018 09:07) was approved by Sanjeeva Reddy.This is an old revision of the document!
Table of Contents
Wav Player
Click here to return to the Sources section.
This module can be used to read PCM/WAV files from internal memory of ADAU145x. This module also provides playback controls as Play/Pause, Stop and Loopback.This module also can perform pitch shifting while playing the file.
The following list shows the various audio files supported by this module.
- Audio Samples in 8.24 Fixed point format (Mono)
- Wav file with out header (PCM) (Mono)
- 8 Bits per Sample (Signed Integer)
- 16 Bits per Sample (Signed Integer)
- 24 Bits per Sample (Signed Integer)
- 32 Bits per Sample (Signed Integer)
Output Pins
| Name | Format [int/dec] - [control/audio] | Function Description |
|---|---|---|
| Pin 0: WavPlayer OutPut | decimal - audio | Audio Sample |
Grow Algorithm
The module currently does not support grow/add functionality.
Configurations
Click on the image 
to open the Wav Player Properties Window.
| GUI Control Name | Default Value | Range | Function Description |
|---|---|---|---|
| Audio File Format | Audio Sample in 8.24 | Wav without header (PCM)/Audio Sample in 8.24 format | Selection of audio file format |
| Bits Per Sample | 32 | 8/16/24/32 | Bits per sample in the audio file Load. |
| Sample to Start | 0 | 0 - number of samples in file | To allow phase shift. |
| File Type | ASCII | ASCII/Binary | To select text file or PCM file. |
Note: The size of the file shall not exceed the (Maximum DM0 Memory(20kb) - Available DM0 Memory).
Any change in these configuration parameters requires a recompilation.
DSP Parameter Information
| GUI Control Name | Compiler Name | Function Description |
|---|---|---|
| ForwardPlay | WavPlayerInternalAlg1ForwardPlay | To Play or Pause the Audio |
| Loopback | WavPlayerInternalAlg1Loopback | To Enable/Disable Loopback |
| PitchScalingFactor | WavPlayerInternalAlg1PitchScalingFactor | To provide pitch shifting |
| PitchScalingCounter | WavPlayerInternalAlg1PitchScalingCounter | To provide phase shift |
Here,
- Green - Algorithm Name
- Red - Instance Number (Changes for each instance)
- Blue - Parameter Name
Supported ICs
- ADAU145x
resources/tools-software/sigmastudio/toolbox/sources/wavplayer.1521452033.txt.gz · Last modified: 19 Mar 2018 10:33 by Sanjeeva Reddy