TextToSpeech volume

[Michael Seymour]

Can it be changed? I've not seen any settings or parameters for it. Took me by surprise when I lowered my phone media volume and started my app in the middle of the night only to have the TextToSpeech in the app yell at me!

[Symbroson Development]

Use app.SetVolume( 'system', value );
value is between 0 and 1

[Michael Seymour]

Ahhh yes coz it's app.TextToSpeech
Didn't think of that, cheers!

[Michael Seymour]

One more question please, how many "streams" are there in SetVolume? Could I set the app's TextToSpeech volume to match the phone's master "Media" volume that TextToSpeech would otherwise ignore? Cheers!

[Symbroson Development]

TextToSpeech uses the system volume. There are also other streams like "Media" or "Notification" - I dont know all ^^

[Michael Seymour]

That's great thankyou :-) I'll stick a speech volume slider in my app's settings and have it match the general "sounds" volume

[Steve Garman]

The available streams are
alarm, dtmf, music, notification, ring, system, voicecall

Not all of these will be separate streams on most devices.

I believe the default stream is "system" although it used to be "music".

If I recall correctly, this was changed to fix a problem with using headphones.

You might want to use the "music" stream instead.

app.TextToSpeech( "hello",1,1,null,"music" );

[Michael Seymour]

Thankyou both, exactly what I need!

I'm using TextToSpeech for Tutorial instructions and various character voices (changing pitch and speed), making the file size a lot smaller without having to use voice sound clips!

[Dave Smart]

Note: You can use completely separate voice engines (download them from Google Play) and regional accents if you need to. 

I've attached a sample of using different voice engines for different voices.

You can also set the 'locale' parameter to make different accents if they are downloaded and available (works with the google voices)

[Dave Smart]

Use strings like this in the locale parameter to change accents:-  "en_GB", "en_IN"

The first time you swap to a new locale, it will be delayed by a few seconds.... you could try working around that by speaking an empty sentence perhaps 3 seconds before needing to speak.

[Mighty Apps Studio]

I created a voice recognition app but the media volume is locked, i tried app.SetVolume("music",3); but nothing worked

[Isaac Franks]

I believe that the two parameters in Set.Volume are for the left and right side volumes, set between a value of 0 and 1 so what you wrote would not have produced results.

[Steve Garman]

I'm afraid you are wrong Isaac.

Your advice is correct for the level, which is the second argument but the first argument is for a string containing the stream name

[Dan Flemming]

I was wondering about the volume level but never asked how it could be modified.

Thanks Steve, I'll use your suggestion

app.TextToSpeech( "hello",1,1,null,"music" );

in my app so users can control the volume.

Thanks!

Dan