forked from cgvr/DeltaVR
microphone recording working with FMOD!!!
This commit is contained in:
Binary file not shown.
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microphoneDevice:
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microphoneDropdown: {fileID: 0}
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microphoneDefaultLabel: Default microphone
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INVOKEAI_BASE_URL: http://ltat-cgvr9.domenis.ut.ee:9090
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plain neutral background, clear details, soft studio lighting, true-to-scale'
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recordDriverId: 0
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desiredSampleRate: 48000
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playLoopback: 0
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loopbackVolume: 1
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Binary file not shown.
@@ -1,36 +1,19 @@
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using TMPro;
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using UnityEngine;
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using Whisper;
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using Whisper.Utils;
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public class MicrophoneStand : MonoBehaviour
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{
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public WhisperManager whisper;
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public MicrophoneRecord microphoneRecord;
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public string microphoneDevice;
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public TextMeshProUGUI outputText;
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private WhisperStream stream;
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[SerializeField]
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private string textOutput;
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public GameObject microphoneOffStatus;
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public GameObject microphoneOnStatus;
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public FMODWhisperBridge fmodWhisperBridge;
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// Start is called before the first frame update
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async void Start()
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void Start()
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{
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Debug.Log("Mic devices: " + string.Join(", ", Microphone.devices));
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Debug.Log("Using mic device: " + microphoneDevice);
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microphoneRecord.SelectedMicDevice = microphoneDevice;
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// This causes about 1 sec long freeze, has to be done once at the start of the game
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microphoneRecord.StartRecord();
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stream = await whisper.CreateStream(microphoneRecord);
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stream.OnResultUpdated += OnWhisperResult;
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//stream.StartStream();
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fmodWhisperBridge.OnWhisperResultProcessed += OnWhisperResult;
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microphoneOffStatus.SetActive(true);
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microphoneOnStatus.SetActive(false);
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@@ -51,10 +34,7 @@ public class MicrophoneStand : MonoBehaviour
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{
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microphoneOffStatus.SetActive(false);
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microphoneOnStatus.SetActive(true);
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stream.StartStream();
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//microphoneRecord.StartRecord();
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Debug.Log("Whisper stream started.");
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fmodWhisperBridge.ActivateRecording();
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}
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}
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@@ -65,27 +45,17 @@ public class MicrophoneStand : MonoBehaviour
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{
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microphoneOffStatus.SetActive(true);
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microphoneOnStatus.SetActive(false);
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stream.StopStream();
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//microphoneRecord.StopRecord();
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textOutput = outputText.text;
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fmodWhisperBridge.DeactivateRecording();
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}
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}
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private void OnWhisperResult(string result)
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{
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Debug.Log("Whisper result processed: " + result);
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outputText.text = result;
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||||
}
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||||
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private void OnDestroy()
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{
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microphoneRecord.StopRecord();
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Destroy(gameObject);
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}
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||||
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public string GetTextOutput()
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{
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return textOutput;
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return outputText.text;
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}
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}
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122
Assets/_PROJECT/Scripts/ModeGeneration/FMODMicLoopback.cs
Normal file
122
Assets/_PROJECT/Scripts/ModeGeneration/FMODMicLoopback.cs
Normal file
@@ -0,0 +1,122 @@
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using FMOD;
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using FMODUnity;
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||||
using System.Runtime.InteropServices;
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using UnityEngine;
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||||
|
||||
public class FMODMicLoopback : MonoBehaviour
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||||
{
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||||
private uint LATENCY_MS = 50;
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||||
private uint DRIFT_MS = 1;
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||||
|
||||
private uint samplesRecorded, samplesPlayed = 0;
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||||
private int nativeRate, nativeChannels = 0;
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||||
private uint recSoundLength = 0;
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||||
uint lastPlayPos = 0;
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||||
uint lastRecordPos = 0;
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||||
private uint driftThreshold = 0;
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||||
private uint desiredLatency = 0;
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||||
private uint adjustLatency = 0;
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||||
private int actualLatency = 0;
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||||
uint minRecordDelta = 0xFFFFFFFF;
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||||
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||||
private FMOD.CREATESOUNDEXINFO exInfo = new FMOD.CREATESOUNDEXINFO();
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||||
|
||||
private FMOD.Sound recSound;
|
||||
private FMOD.Channel channel;
|
||||
|
||||
// Start is called before the first frame update
|
||||
void Start()
|
||||
{
|
||||
/*
|
||||
Determine latency in samples.
|
||||
*/
|
||||
FMODUnity.RuntimeManager.CoreSystem.getRecordDriverInfo(0, out _, 0, out _, out nativeRate, out _, out nativeChannels, out _);
|
||||
|
||||
driftThreshold = (uint)(nativeRate * DRIFT_MS) / 1000;
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||||
desiredLatency = (uint)(nativeRate * LATENCY_MS) / 1000;
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||||
adjustLatency = desiredLatency;
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||||
actualLatency = (int)desiredLatency;
|
||||
|
||||
/*
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||||
Create user sound to record into, then start recording.
|
||||
*/
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||||
exInfo.cbsize = Marshal.SizeOf(typeof(FMOD.CREATESOUNDEXINFO));
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exInfo.numchannels = nativeChannels;
|
||||
exInfo.format = FMOD.SOUND_FORMAT.PCM16;
|
||||
exInfo.defaultfrequency = nativeRate;
|
||||
exInfo.length = (uint)(nativeRate * sizeof(short) * nativeChannels);
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FMODUnity.RuntimeManager.CoreSystem.createSound("", FMOD.MODE.LOOP_NORMAL | FMOD.MODE.OPENUSER, ref exInfo, out recSound);
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FMODUnity.RuntimeManager.CoreSystem.recordStart(0, recSound, true);
|
||||
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recSound.getLength(out recSoundLength, FMOD.TIMEUNIT.PCM);
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||||
}
|
||||
|
||||
// Update is called once per frame
|
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void Update()
|
||||
{
|
||||
/*
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Determine how much has been recorded since we last checked
|
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*/
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||||
uint recordPos = 0;
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FMODUnity.RuntimeManager.CoreSystem.getRecordPosition(0, out recordPos);
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|
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uint recordDelta = (recordPos >= lastRecordPos) ? (recordPos - lastRecordPos) : (recordPos + recSoundLength - lastRecordPos);
|
||||
lastRecordPos = recordPos;
|
||||
samplesRecorded += recordDelta;
|
||||
|
||||
if (recordDelta != 0 && (recordDelta < minRecordDelta))
|
||||
{
|
||||
minRecordDelta = recordDelta; // Smallest driver granularity seen so far
|
||||
adjustLatency = (recordDelta <= desiredLatency) ? desiredLatency : recordDelta; // Adjust our latency if driver granularity is high
|
||||
}
|
||||
|
||||
/*
|
||||
Delay playback until our desired latency is reached.
|
||||
*/
|
||||
if (!channel.hasHandle() && samplesRecorded >= adjustLatency)
|
||||
{
|
||||
FMODUnity.RuntimeManager.CoreSystem.getMasterChannelGroup(out FMOD.ChannelGroup mCG);
|
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FMODUnity.RuntimeManager.CoreSystem.playSound(recSound, mCG, false, out channel);
|
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}
|
||||
|
||||
/*
|
||||
Determine how much has been played since we last checked.
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*/
|
||||
if (channel.hasHandle())
|
||||
{
|
||||
uint playPos = 0;
|
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channel.getPosition(out playPos, FMOD.TIMEUNIT.PCM);
|
||||
|
||||
uint playDelta = (playPos >= lastPlayPos) ? (playPos - lastPlayPos) : (playPos + recSoundLength - lastPlayPos);
|
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lastPlayPos = playPos;
|
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samplesPlayed += playDelta;
|
||||
|
||||
// Compensate for any drift.
|
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int latency = (int)(samplesRecorded - samplesPlayed);
|
||||
actualLatency = (int)((0.97f * actualLatency) + (0.03f * latency));
|
||||
|
||||
int playbackRate = nativeRate;
|
||||
if (actualLatency < (int)(adjustLatency - driftThreshold))
|
||||
{
|
||||
// Playback position is catching up to the record position, slow playback down by 2%
|
||||
playbackRate = nativeRate - (nativeRate / 50);
|
||||
}
|
||||
|
||||
else if (actualLatency > (int)(adjustLatency + driftThreshold))
|
||||
{
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||||
// Playback is falling behind the record position, speed playback up by 2%
|
||||
playbackRate = nativeRate + (nativeRate / 50);
|
||||
}
|
||||
|
||||
channel.setFrequency((float)playbackRate);
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||||
}
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||||
}
|
||||
|
||||
private void OnDestroy()
|
||||
{
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||||
recSound.release();
|
||||
}
|
||||
}
|
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externalObjects: {}
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defaultReferences: []
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238
Assets/_PROJECT/Scripts/ModeGeneration/FMODWhisperBridge.cs
Normal file
238
Assets/_PROJECT/Scripts/ModeGeneration/FMODWhisperBridge.cs
Normal file
@@ -0,0 +1,238 @@
|
||||
|
||||
using System;
|
||||
using System.Runtime.InteropServices;
|
||||
using UnityEngine;
|
||||
using FMOD;
|
||||
using FMODUnity;
|
||||
using Whisper; // WhisperManager, WhisperStream, WhisperResult
|
||||
using Whisper.Utils; // AudioChunk
|
||||
|
||||
/// <summary>
|
||||
/// Capture microphone with FMOD and feed chunks to WhisperStream (no Unity Microphone).
|
||||
/// Also (optionally) plays the recorded sound back via FMOD loopback.
|
||||
/// </summary>
|
||||
|
||||
public class FMODWhisperBridge : MonoBehaviour
|
||||
{
|
||||
[Header("Whisper")]
|
||||
[SerializeField] private WhisperManager whisper; // assign in Inspector
|
||||
[SerializeField] private bool useVadInStream = false; // let WhisperStream do VAD or not
|
||||
|
||||
[Header("FMOD capture")]
|
||||
[Tooltip("Recording device index (0 = default)")]
|
||||
public int recordDriverId = 0;
|
||||
[Tooltip("Set 48000 on Quest; falls back to device rate automatically")]
|
||||
public int desiredSampleRate = 48000;
|
||||
[Tooltip("Mono recommended for Whisper")]
|
||||
public int channels = 1;
|
||||
[Range(1, 10)] public int bufferLengthSec = 5;
|
||||
|
||||
[Header("Loopback (monitor your voice)")]
|
||||
public bool playLoopback = true;
|
||||
[Range(0f, 2f)] public float loopbackVolume = 1.0f;
|
||||
|
||||
public delegate void OnWhisperResultProcessedDelegate(string result);
|
||||
public event OnWhisperResultProcessedDelegate OnWhisperResultProcessed;
|
||||
|
||||
// FMOD
|
||||
private FMOD.System _core;
|
||||
private Sound _recSound;
|
||||
private Channel _playChannel;
|
||||
private ChannelGroup _masterGroup;
|
||||
private uint _soundPcmLength; // in samples
|
||||
private int _nativeRate;
|
||||
private int _nativeChannels;
|
||||
|
||||
// ring-buffer tracking
|
||||
private uint _lastRecordPos = 0;
|
||||
|
||||
// Whisper
|
||||
private WhisperStream _stream;
|
||||
private bool _streamStarted;
|
||||
|
||||
// temp conversion buffer
|
||||
private float[] _floatTmp = new float[0];
|
||||
|
||||
private bool isRecordingActivated = false;
|
||||
|
||||
private void Awake()
|
||||
{
|
||||
if (!whisper) whisper = FindObjectOfType<WhisperManager>();
|
||||
_core = RuntimeManager.CoreSystem; // FMOD core system
|
||||
}
|
||||
|
||||
private async void Start()
|
||||
{
|
||||
// Query device info to get native rate/channels.
|
||||
// (FMOD: getRecordDriverInfo gives you system rate & speaker mode)
|
||||
string name;
|
||||
Guid guid;
|
||||
SPEAKERMODE sm;
|
||||
int smChannels;
|
||||
DRIVER_STATE driverState;
|
||||
// signature: getRecordDriverInfo(id, out name, nameLen, out guid, out systemrate, out speakermode, out speakermodechannels, out driverState)
|
||||
_core.getRecordDriverInfo(recordDriverId, out name, 256, out guid, out _nativeRate, out sm, out smChannels, out driverState);
|
||||
_nativeChannels = channels > 0 ? channels : smChannels;
|
||||
UnityEngine.Debug.Log($"[FMOD→Whisper] Using input device #{recordDriverId}: \"{name}\" rate={_nativeRate} ch={_nativeChannels}");
|
||||
|
||||
// Build a user sound buffer that FMOD will fill (OPENUSER | LOOP_NORMAL).
|
||||
CREATESOUNDEXINFO ex = new CREATESOUNDEXINFO
|
||||
{
|
||||
cbsize = Marshal.SizeOf(typeof(CREATESOUNDEXINFO)),
|
||||
numchannels = _nativeChannels,
|
||||
defaultfrequency = (_nativeRate > 0) ? _nativeRate : desiredSampleRate,
|
||||
format = SOUND_FORMAT.PCM16,
|
||||
length = (uint)(((_nativeRate > 0 ? _nativeRate : desiredSampleRate) * _nativeChannels) * sizeof(short)) // seconds=1 (we loop)
|
||||
};
|
||||
|
||||
_core.createSound("", MODE.OPENUSER | MODE.LOOP_NORMAL | MODE.CREATESAMPLE, ref ex, out _recSound);
|
||||
_recSound.getLength(out _soundPcmLength, TIMEUNIT.PCM);
|
||||
|
||||
// Start FMOD recording into that sound (looping ring buffer).
|
||||
_core.recordStart(recordDriverId, _recSound, true);
|
||||
UnityEngine.Debug.Log("[FMOD→Whisper] Recording started.");
|
||||
|
||||
// Optional loopback playback using FMOD (plays same sound ring buffer).
|
||||
_core.getMasterChannelGroup(out _masterGroup);
|
||||
if (playLoopback)
|
||||
{
|
||||
_core.playSound(_recSound, _masterGroup, false, out _playChannel);
|
||||
_playChannel.setMode(MODE._2D);
|
||||
_playChannel.setVolume(loopbackVolume);
|
||||
UnityEngine.Debug.Log("[FMOD→Whisper] Loopback playback started.");
|
||||
}
|
||||
|
||||
// Create Whisper stream WITHOUT MicrophoneRecord, just from (freq, channels).
|
||||
// We'll push AudioChunk manually.
|
||||
// NOTE: WhisperStream’s sliding window is governed by manager’s stepSec/keepSec/lengthSec.
|
||||
_stream = await whisper.CreateStream(ex.defaultfrequency, _nativeChannels);
|
||||
_stream.OnResultUpdated += (txt) =>
|
||||
{
|
||||
//OnWhisperResultProcessed?.Invoke(txt);
|
||||
//UnityEngine.Debug.Log($"[Whisper] result updated: {txt}");
|
||||
};
|
||||
_stream.OnSegmentUpdated += (seg) =>
|
||||
{
|
||||
OnWhisperResultProcessed?.Invoke(seg.Result);
|
||||
//UnityEngine.Debug.Log($"[Whisper] Seg finished: {seg.Result}");
|
||||
};
|
||||
|
||||
// If you want Whisper to respect VAD, enable in manager or set useVad (manager controls stream params).
|
||||
whisper.useVad = useVadInStream;
|
||||
|
||||
_stream.StartStream();
|
||||
_streamStarted = true;
|
||||
|
||||
// prepare temp arrays roughly 100ms of audio
|
||||
EnsureTmpCapacity((ex.defaultfrequency / 10) * _nativeChannels);
|
||||
}
|
||||
|
||||
private void Update()
|
||||
{
|
||||
if (!isRecordingActivated) return;
|
||||
if (_core.handle != IntPtr.Zero) _core.update();
|
||||
if (!_streamStarted || !_recSound.hasHandle()) return;
|
||||
|
||||
// How many samples recorded since last frame?
|
||||
uint recPos;
|
||||
_core.getRecordPosition(recordDriverId, out recPos);
|
||||
|
||||
uint deltaSamples = (recPos >= _lastRecordPos)
|
||||
? (recPos - _lastRecordPos)
|
||||
: (recPos + _soundPcmLength - _lastRecordPos);
|
||||
|
||||
if (deltaSamples == 0) return;
|
||||
|
||||
// We’ll read that region (16-bit) and convert to float[] [-1..1].
|
||||
// Calculate byte range to lock in sound buffer
|
||||
uint bytesToRead = deltaSamples * (uint)_nativeChannels * 2; // 16-bit = 2 bytes
|
||||
uint startBytes = _lastRecordPos * (uint)_nativeChannels * 2;
|
||||
|
||||
IntPtr p1, p2;
|
||||
uint len1, len2;
|
||||
// Lock can wrap — FMOD splits into p1/p2.
|
||||
_recSound.@lock(startBytes, bytesToRead, out p1, out p2, out len1, out len2);
|
||||
|
||||
try
|
||||
{
|
||||
// Convert both parts to float and push to Whisper
|
||||
if (len1 > 0) CopyPcm16ToFloatAndFeed(p1, len1);
|
||||
if (len2 > 0) CopyPcm16ToFloatAndFeed(p2, len2);
|
||||
}
|
||||
finally
|
||||
{
|
||||
_recSound.unlock(p1, p2, len1, len2);
|
||||
}
|
||||
|
||||
_lastRecordPos = recPos;
|
||||
}
|
||||
|
||||
public void ActivateRecording()
|
||||
{
|
||||
isRecordingActivated = true;
|
||||
}
|
||||
|
||||
public void DeactivateRecording()
|
||||
{
|
||||
isRecordingActivated = false;
|
||||
}
|
||||
|
||||
private void CopyPcm16ToFloatAndFeed(IntPtr src, uint byteLen)
|
||||
{
|
||||
int samples = (int)(byteLen / 2); // 2 bytes per sample
|
||||
EnsureTmpCapacity(samples);
|
||||
|
||||
// Marshal the 16-bit PCM into managed space
|
||||
// We pin a short[] overlay to avoid copying twice
|
||||
int shorts = samples;
|
||||
int byteCount = (int)byteLen;
|
||||
|
||||
// Use Marshal.Copy into a short[] then convert to float[-1..1]
|
||||
// (You can also unsafe copy for speed if needed.)
|
||||
EnsureShortOverlay(shorts, out short[] sBuf);
|
||||
Marshal.Copy(src, sBuf, 0, shorts);
|
||||
|
||||
for (int i = 0; i < shorts; i++)
|
||||
{
|
||||
// 32768f avoids clipping at -32768
|
||||
_floatTmp[i] = Mathf.Clamp(sBuf[i] / 32768f, -1f, 1f);
|
||||
}
|
||||
|
||||
// Build a chunk for WhisperStream; with VAD off, IsVoiceDetected=true is fine.
|
||||
var chunk = new AudioChunk
|
||||
{
|
||||
Data = _floatTmp.AsSpan(0, shorts).ToArray(),
|
||||
Frequency = (_nativeRate > 0) ? _nativeRate : desiredSampleRate,
|
||||
Channels = _nativeChannels,
|
||||
IsVoiceDetected = true
|
||||
};
|
||||
|
||||
_stream.AddToStream(chunk);
|
||||
}
|
||||
|
||||
private short[] _shortOverlay;
|
||||
private void EnsureShortOverlay(int samples, out short[] buf)
|
||||
{
|
||||
if (_shortOverlay == null || _shortOverlay.Length < samples)
|
||||
_shortOverlay = new short[Mathf.NextPowerOfTwo(samples)];
|
||||
buf = _shortOverlay;
|
||||
}
|
||||
|
||||
private void EnsureTmpCapacity(int samples)
|
||||
{
|
||||
if (_floatTmp == null || _floatTmp.Length < samples)
|
||||
_floatTmp = new float[Mathf.NextPowerOfTwo(samples)];
|
||||
}
|
||||
|
||||
private void OnDisable()
|
||||
{
|
||||
if (_streamStarted)
|
||||
{
|
||||
_stream.StopStream();
|
||||
_streamStarted = false;
|
||||
}
|
||||
|
||||
if (_playChannel.hasHandle()) { _playChannel.stop(); _playChannel.clearHandle(); }
|
||||
if (_recSound.hasHandle()) { _core.recordStop(recordDriverId); _recSound.release(); _recSound.clearHandle(); }
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,11 @@
|
||||
fileFormatVersion: 2
|
||||
guid: a264cb5321d9f6741a2625b8c63c34a7
|
||||
MonoImporter:
|
||||
externalObjects: {}
|
||||
serializedVersion: 2
|
||||
defaultReferences: []
|
||||
executionOrder: 0
|
||||
icon: {instanceID: 0}
|
||||
userData:
|
||||
assetBundleName:
|
||||
assetBundleVariant:
|
||||
@@ -2,7 +2,7 @@
|
||||
using UnityEngine;
|
||||
|
||||
[RequireComponent(typeof(AudioSource))]
|
||||
public class MicrophoneTesting : MonoBehaviour
|
||||
public class MicLoopback : MonoBehaviour
|
||||
{
|
||||
[Header("Mic settings")]
|
||||
[Tooltip("Leave empty for default device")]
|
||||
Reference in New Issue
Block a user