Amazon Polly - bmodeco - 25.04.2017
Hi,
I did some testing with voicerss for text-to-speech but i find that the quality insufficient.
I would like to use amazon aws Polly but I don't know how to authenticate when using the http-api.
The idea would be to also to get an mp3 back just like with voiceless.
Anyone who can help me with this?
Thanks, Bart
RE: Amazon Polly - gjniewenhuijse - 26.04.2017
(25.04.2017, 20:43)bmodeco Wrote: Hi,
I did some testing with voicerss for text-to-speech but i find that the quality insufficient.
I would like to use amazon aws Polly but I don't know how to authenticate when using the http-api.
The idea would be to also to get an mp3 back just like with voiceless.
Anyone who can help me with this?
Thanks, Bart
hello, did you have the voicerss service working? can you please share your code?
RE: Amazon Polly - bmodeco - 26.04.2017
(26.04.2017, 07:27)gjniewenhuijse Wrote: (25.04.2017, 20:43)bmodeco Wrote: Hi,
I did some testing with voicerss for text-to-speech but i find that the quality insufficient.
I would like to use amazon aws Polly but I don't know how to authenticate when using the http-api.
The idea would be to also to get an mp3 back just like with voiceless.
Anyone who can help me with this?
Thanks, Bart
hello, did you have the voicerss service working? can you please share your code?
Hi,
Will post it tonight. The mp3 is saved (through ftp) om my synology-nas so that all my sonos-speakers have access to the mp3.
I have it currently setup so that my music (when playing) pauses, plays the mp3 and then continues were it left of.
don't know if this is what you are looking for.
I am using this for my doorbell also: pushbutton connected to knx-input, triggers a script that pauses music (when playing), plays the doorbell sound (or a barking dog if you want ) and continues afterwards.
I wanted to convert this to amazon polly but I don't know how to do the authentication (creation of signature/hash-stuff) when using the http-api.
Amazon Polly has lots of options: parts of text louder or even whispering, parts of text faster or slower...
Check this link for hearing the voices: https://aws.amazon.com/polly/details/
They sound very lifelike...(even dutch female/male voice)
Br,
Bart
RE: Amazon Polly - bmodeco - 26.04.2017
Hi Admin,
Any ideas on how to do the authentication for the http api of aws amazon polly?
Should be similar to what you are doing with amazon alexa...
Thanks, Bart
RE: Amazon Polly - admin - 27.04.2017
I can try and provide a sample but I don't have anything to test it with. If you can setup Polly on your AWS account and PM the details then I can see what I can do
RE: Amazon Polly - bmodeco - 27.04.2017
(27.04.2017, 05:53)admin Wrote: I can try and provide a sample but I don't have anything to test it with. If you can setup Polly on your AWS account and PM the details then I can see what I can do
Hi admin,
I did send you a PM with the info to access my aws Polly.
Thanks again,
BR, Bart
RE: Amazon Polly - admin - 02.05.2017
Here's an example on how to access Amazon Polly. Make sure you set region, accesskey, secretkey and voice variables correctly.
This has been tested on the latest RC1 firmware, but you also need to install package updates to have support for sha256 function:
Standard LM: https://dl.openrb.com/misc/luaencdec_20170426_mxs.ipk
LM power version: https://dl.openrb.com/misc/luaencdec_20170426_imx6.ipk
Code: function getpollyurl(text)
-- CONFIG VARIABLES
local region = 'eu-west-1' -- your AWS region
local accesskey = 'xxx'
local secretkey = 'yyy'
local voice = 'Joey' -- list of voices: https://aws.amazon.com/polly/details/
-- same as JS encodeURIComponent
local function encode(str)
return (str:gsub("[^%w%-_%.%!%~%*%'%(%)]", function(c)
return string.format("%%%02X", c:byte(1,1))
end))
end
function toquerystring(items)
local res = {}
for _, item in ipairs(items) do
res[ #res + 1 ] = item[ 1 ] .. '=' .. encode(item[ 2 ])
end
return table.concat(res, '&')
end
function getkey(key, datestamp, regionname, servicename)
local kdate = encdec.hmacsha256(datestamp, 'AWS4' .. key, true)
local kregion = encdec.hmacsha256(regionname, kdate, true)
local kservice = encdec.hmacsha256(servicename, kregion, true)
return encdec.hmacsha256('aws4_request', kservice, true)
end
local encdec = require('encdec')
local method = 'GET'
local service = 'polly'
local host = service .. '.' .. region .. '.amazonaws.com'
local api = '/v1/speech'
local endpoint = 'https://' .. host .. api
local amzdate = os.date('!%Y%m%dT%H%M%SZ')
local datestamp = os.date('!%Y%m%d')
local algorithm = 'AWS4-HMAC-SHA256'
local canonicaluri = api
local canonicalheaders = 'host:' .. host
local signedheaders = 'host'
local credentialscope = datestamp .. '/' .. region .. '/' .. service .. '/' .. 'aws4_request'
local canonicalquerystring = toquerystring({
{ 'OutputFormat', 'mp3' },
{ 'Text', text },
{ 'TextType', 'text' },
{ 'VoiceId', voice },
{ 'X-Amz-Algorithm', algorithm },
{ 'X-Amz-Credential', accesskey .. '/' .. credentialscope },
{ 'X-Amz-Date', amzdate },
{ 'X-Amz-SignedHeaders', signedheaders },
})
local payloadhash = encdec.sha256('')
local canonicalrequest = table.concat({
method,
api,
canonicalquerystring,
canonicalheaders,
'',
signedheaders,
payloadhash
}, '\n')
local stringtosign = table.concat({
algorithm,
amzdate,
credentialscope,
encdec.sha256(canonicalrequest)
}, '\n')
local signingkey = getkey(secretkey, datestamp, region, service)
local signature = encdec.hmacsha256(stringtosign, signingkey)
return endpoint .. '?' .. canonicalquerystring .. '&X-Amz-Signature=' .. signature
end
url = getpollyurl('testing polly from logic machine')
require('ssl.https')
res, status = ssl.https.request(url)
if res then
-- res contains the mp3 file
else
alert('Polly request failed: ' .. tostring(status))
end
RE: Amazon Polly - bmodeco - 02.05.2017
(02.05.2017, 06:10)admin Wrote: Here's an example on how to access Amazon Polly. Make sure you set region, accesskey, secretkey and voice variables correctly.
This has been tested on the latest RC1 firmware, but you also need to install package updates to have support for sha256 function:
Standard LM: https://dl.openrb.com/misc/luaencdec_20170426_mxs.ipk
LM power version: https://dl.openrb.com/misc/luaencdec_20170426_imx6.ipk
Code: function getpollyurl(text)
-- CONFIG VARIABLES
local region = 'eu-west-1' -- your AWS region
local accesskey = 'xxx'
local secretkey = 'yyy'
local voice = 'Joey' -- list of voices: https://aws.amazon.com/polly/details/
-- same as JS encodeURIComponent
local function encode(str)
return (str:gsub("[^%w%-_%.%!%~%*%'%(%)]", function(c)
return string.format("%%%02X", c:byte(1,1))
end))
end
function toquerystring(items)
local res = {}
for _, item in ipairs(items) do
res[ #res + 1 ] = item[ 1 ] .. '=' .. encode(item[ 2 ])
end
return table.concat(res, '&')
end
function getkey(key, datestamp, regionname, servicename)
local kdate = encdec.hmacsha256(datestamp, 'AWS4' .. key, true)
local kregion = encdec.hmacsha256(regionname, kdate, true)
local kservice = encdec.hmacsha256(servicename, kregion, true)
return encdec.hmacsha256('aws4_request', kservice, true)
end
local encdec = require('encdec')
local method = 'GET'
local service = 'polly'
local host = service .. '.' .. region .. '.amazonaws.com'
local api = '/v1/speech'
local endpoint = 'https://' .. host .. api
local amzdate = os.date('!%Y%m%dT%H%M%SZ')
local datestamp = os.date('!%Y%m%d')
local algorithm = 'AWS4-HMAC-SHA256'
local canonicaluri = api
local canonicalheaders = 'host:' .. host
local signedheaders = 'host'
local credentialscope = datestamp .. '/' .. region .. '/' .. service .. '/' .. 'aws4_request'
local canonicalquerystring = toquerystring({
{ 'OutputFormat', 'mp3' },
{ 'Text', text },
{ 'TextType', 'text' },
{ 'VoiceId', voice },
{ 'X-Amz-Algorithm', algorithm },
{ 'X-Amz-Credential', accesskey .. '/' .. credentialscope },
{ 'X-Amz-Date', amzdate },
{ 'X-Amz-SignedHeaders', signedheaders },
})
local payloadhash = encdec.sha256('')
local canonicalrequest = table.concat({
method,
api,
canonicalquerystring,
canonicalheaders,
'',
signedheaders,
payloadhash
}, '\n')
local stringtosign = table.concat({
algorithm,
amzdate,
credentialscope,
encdec.sha256(canonicalrequest)
}, '\n')
local signingkey = getkey(secretkey, datestamp, region, service)
local signature = encdec.hmacsha256(stringtosign, signingkey)
return endpoint .. '?' .. canonicalquerystring .. '&X-Amz-Signature=' .. signature
end
url = getpollyurl('testing polly from logic machine')
require('ssl.https')
res, status = ssl.https.request(url)
if res then
-- res contains the mp3 file
else
alert('Polly request failed: ' .. tostring(status))
end
Hi admin,
Thanks a lot! I can confirm that it works as expected on RC1...
BR, Bart
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